Animal and plants cells are the two types of eukaryotic cells. Although they are similar, there are some key differences. What are some of the unique organelles that only plant cells have? A) Cell Membrane, Large Vacuole, Chloroplast B) Large Vacuole, Chloroplast, Nucleus C) Chloroplast, Cell Wall, Large Vacuole D) Cell Wall, Mitochondria, Ribosomes

Question 1: A.)

Question 2: i would say A.)

Question 3: C.)

Question 4: B.)

Question 5: A.)

Question 6: B.)

Hope this heslp

Chlorophyll is the green pigment found on the plants that absorbs light energy  used by plants for the production of plant food. but due to the green coloration it does not absorb visible green light .

photosynthesis occurs in the presence of light therefore when the room is dark the process of photosynthesis will stop in the plants.

when our muscle cells lacks the required amount of oxygen supply we start to feel some form of fatigue due the lactic acid fermentation.

Hence we can conclude that the correct answers to the questions are as listed above. ( A , A , C,  B, A,  B )

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Answer:

The answer to your question is: after two hours there will be 6400 cell/ ml

Explanation:

Data

Bacteria t = 0; 400 cells/ml

generation time = 30 minutes

# cells after two hours = ?

                                 # of bacteria               time

                                     400                            0

                                      800                         30 min

                                   1600                           60 min

                                   3200                           90 min

                                   6400                          120 min

All living things are made up of carbon primarily because carbon atoms can form diverse stable covalent bonds, including single, double, and triple bonds, as well as rings, which enables the formation of complex and large macromolecules necessary for life.

All living things are made up of carbon because it has unique properties that are crucial for forming the complex molecules of life. The correct answer to why carbon is so basic to life is A: carbon has the ability to form single bonds, double bonds, triple bonds, and rings and form large macromolecules. Carbon atoms can form covalent bonds with up to four different atoms. This versatility allows carbon to form the backbone of macromolecules such as proteins, nucleic acids (DNA and RNA), carbohydrates, and lipids. Carbon's bonding capabilities enable it to form stable and diverse molecular structures, including straight chains, branched chains, and rings, which in turn are responsible for the variety of functions of biological macromolecules.

Final answer:

Carbon is fundamental to life because it can form single, double, triple bonds, and rings to create large macromolecules. It's the bonding versatility of carbon that enables it to serve as the backbone for crucial biological compounds. Carbon's unique capacity to bond in multiple ways underpins the structural diversity and complexity of life’s molecules.

Explanation:

All living things are made up of carbon because of option A: carbon has the ability to form single bonds, double bonds, triple bonds, and rings and form large macromolecules. Carbon is a unique element with the capacity to form stable covalent bonds with up to four different atoms, enabling the construction of complex molecules essential for life. These can range from simple organic molecules to the polymers that make up life's crucial macromolecules like proteins and carbohydrates.

Carbon's versatility is due to its four valence electrons, allowing for a variety of stable bonding patterns, including chains, branching chains, and rings—structures foundational to biological macromolecules. This bond diversity is the reason why carbon can form a vast array of organic compounds, making it indispensable to life's chemical processes.

The carbon atoms may form large macromolecular structures by bonding with other carbon atoms or with other elements like nitrogen, oxygen, and phosphorus. These formations underlie the structural and functional diversity of organic molecules in living systems. Unlike other elements, carbon's ability to form an extensive range of varying sized and shaped molecules contributes to its fundamental role in biology.

Answer:

amino acids

Explanation:

Saccharides are for polysaccharides

Nucleotides are for DNA

Fatty acids are for lipids

Amino acids line up in a chain during translation into a protein.

Proteins are made up of long chains of building blocks called amino acids. There are 20 different amino acids that can be combined to create a protein. The sequence of these amino acids determines the protein's structure and function.

Proteins, which are integral to bodily processes, are composed of long chains of building blocks known as amino acids. There are 20 different types of amino acids that can be combined to make a protein. The sequence of the amino acids determines the structure and function of each protein. Unlike saccharides, which make up carbohydrates, nucleotides that build up nucleic acids, and fatty acids which are the building blocks of lipids; amino acids are unique in their role as the building blocks of proteins.

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Answer: acid

Explanation:

In this reaction, sodium hydroxide (NaOH) disassociates into sodium (Na+) and hydroxide (OH-) ions when dissolved in water, thereby releasing OH- ions into solution.

Bases are the chemical compounds which give out [tex]\bold{OH^-}[/tex] ions when dissolved in aqueous solution or water.

In science, bases are substances that show the following characteristic:

Answer: D. Proteins, Nucleic Acids, Carbohydrates, and Lipids

Explanation: Living systems have important macromolecules that act as structural blocks or participate in metabolism.

The four main biological macromolecules in living organisms are proteins, carbohydrates, lipids, and nucleic acids, each with essential roles in bodily functions.

The four main categories of large biological molecules present in living systems are proteins, carbohydrates, lipids, and nucleic acids. These macromolecules are essential to life, each playing unique and critical roles in the structure, function, and regulation of the body's cells, tissues, and organs. Proteins are made from amino acids and perform a variety of functions including catalyzing metabolic reactions, DNA replication, and transporting molecules. Carbohydrates include sugars and starches that are vital for energy storage and supply. Lipids are fats and oils that store energy, insulate the body, and make up cell membranes. Nucleic acids, which encompass DNA and RNA, contain the genetic instructions for the development and function of living organisms.

The correct answer is A. From fertilization and to the end of the second week

Explanation:

Fetal or embryonic development includes different stages from fertilization to birth. The first stage is the pre-embryonic stage, this occurs after fertilization and lasts the two first weeks of pregnancy, it is called pre-embryonic stage because during this there is no an embryo but the zygote implants and later different processes of cell division occur. Additionally, the pre-embryonic stage is followed by the embryonic stage (week 3 to 8) and finally the fetus stage (week 9 to birth). According to this, if students have correctly learned about fetal development they should choose "from fertilization and to the end of the second week" as the period for the pre-embryonic stage.

Answer:

The source of energy for diffusion comes from cellular ATP

Explanation:

Diffusion is the net movement of particles against concentration gradient. Particles move from higher concentration to lower concentration on their own without requirement of external energy source. Hence no ATP is required for the process. ATP provides energy for movement of particles against the concentration gradient.

Rate of diffusion increases with increase in temperature as kinetic energy of particles increases; also lighter the particles, faster they will move. Hence, a substance with less molecular weight will diffuse faster than heavier substance.

Answer:

Explanation:

a

Answer:

Acid fast bacteria are stain by the gram process but it retains the red color like the gram negative. The result will show a false positive to a negative gram bacteria.

Explanation:

The acid fast bacteria are 4 groups of bacteria ( Mycobacterium, Nocardia, Corynebacterium, Clostridium) that have the characteristic that they posses a high concentration of micolic acid. This characteristic is sensible to be dye by the gramm process, because the chemicals are not attract among them. To be dye, this kind of bacteria, is necessary used heat and the presence of phenol.

The Gram stain is not used on acid-fast bacteria due to their unique cell wall structure with a layer of waxy mycolic acids, making them retain the acid-fast stain instead. Non-acid-fast bacteria can be identified by Gram stain procedure, showing up as either gram-positive or gram-negative.

The Gram stain isn't used on acid-fast bacteria because it wouldn't accurately identify them due to their unique cell wall structure. Acid-fast bacteria, such as members of the Mycobacteriaceae family, have an extra layer of waxy mycolic acids in their cell walls, which resists the decolorizing process of the Gram stain procedure.

If you attempted to Gram stain acid-fast bacteria, the result would be inconclusive as they may not properly retain the stain due to their special cell wall structure. Therefore, the acid-fast staining protocol, which uses carbolfuchsin as the primary stain, is necessary. In this process, acid-fast cells retain the carbolfuchsin dye even after a decolorizing agent is applied.

Normal (non-acid-fast) bacteria do not have the waxy mycolic acid layer. They can be correctly identified by the Gram stain procedure. These could show gram-positive or gram-negative reaction based on their cell wall structure. Gram-positive bacteria have a thicker peptidoglycan layer which retains the purple crystal-violet stain, while Gram-negative bacteria have a thinner peptidoglycan layer and do not retain the crystal-violet stain but take up the red counterstain, safranin.

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Answer:

Lance Armstrong showed the greatest evolutionary fitness.

Explanation:

Because of this age and his 4 kids. It requires a really fit body to achieve that goal.

Following are the functions of neural components in synaptic transmission pathway -

a. neurotransmitter pre-synaptic – 2. Chemicals that are released into the synapse.

b. neuron post-synaptic – 4. Sending information.

c. neuron dendrites post-synaptic – 1. Receiving information.

d. neuron cell body – 3. Integrating information.

The neurons release the neurotransmitter, which act as a messenger and carry the signal from one neuron to another.

The synaptic transmission pathway is as follows -

Therefore, the synaptic transmission pathway starts with the neurotransmitters, which are chemical messengers. They give information to dendrites, which further receives and transmit the information to cell body, where it's processed and transmitted to another neuron.

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Neurotransmitters in the presynaptic neuron are chemicals that are released into the synapse. The presynaptic neuron sends the information while the postsynaptic neuron dendrites receive this information. The neuron cell body integrates the received information.

In the process of synaptic transmission, several neural components play specific roles. These include:

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Answer: b. reaction 3

Explanation: When an enzyme is present in a reaction acts as a catalyst, increasing velocity of reaction and decreasing the activation energy, when not present an enzyme the reaction velocity is very low and implies high activation energy, being unfavorable to the system

Answer: Option D.

Explanation:

Protein are large biomolecules which contains one or more long chains of amino acid residues and plays important functions in living organism.

Proteins consist of one or more than one polypeptide chains.

If proteins consist of only one polypeptide chain they form primary structure, secondary, and tertiary structures while if a protein consist of more than one polypeptide chain it forms Quaternary structure.

Proteins with multiple polypeptide chains called subunits and these subunits attach together to give Quaternary structure. Multiple polypeptides chains are arranged in folded protein subunits and allows formation of simple dimers and large complexes with different numbers of subunits. Examples of Quaternary structure d proteins are DNA polymerase, hemoglobin, and ion channels.

Hence, the correct option is D.

Proteins are mainly composed of amino acids linked together. They can be any size, and their amino acid compositions can vary significantly. Moreover, proteins can consist of more than one polypeptide chain.

Proteins are biologically significant molecules composed mainly of amino acids linked in a polypeptide chain. The statement that proteins consist solely of polymerized amino acids, however, is partially incorrect. While amino acids are the building blocks of proteins, proteins also undergo various levels of structural organization and may also contain other non-amino acid entities attached to them.

The notion that a protein can consist of no more than 2000 amino acid residues is not universally true. Proteins can be any size, depending on their function in the organism. The statement that proteins have similar amino acid compositions is also not completely accurate as proteins differ significantly in their amino acid compositions based upon their function and the organisms where they are found. It is correct, however, that proteins can consist of more than one polypeptide chain. These are referred to as quaternary structures.

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Answer:

Anaerobic chemoorganotrophy.

Explanation:

Anaerobic chemoorganotrophs may be defined as the organisms that has the ability to prepare their food with the help of organic chemicals in the basence of oxygen. The microorganism uses this metabolism to cause disease in other organism.

The pathogens like Clostridium tetani use the anaerobic chemoorganotrophs bacteria as they injected into the tissue and do metabolism without the presence of oxygen. They can not cause disease on skin surface as abundant oxygen is present on the body surface.

Thus, the answer is anaerobic chemoorganotrophy.

Answer:

The correct answer is A.

Explanation:

Diffusion is the net movement of a substance from a region of higher concentration to a region of lower concentration. The difference in concentration between two environments creates a concentration gradient which is what drives diffusion. Therefore, this movement does not require aid such as extra energy molecules for active transport or integral membrane proteins for directed movement, hence the answer is not B nor C. If the cell is in equilibrium with its environment, it means that the concentration of substances inside the cell is equal to the concentration outside the cell, and any movement that takes place will be random movement of substances across the plasma memberane. Movement in the cell will not cease as the cell is still active. Therefore, the answer cannot be D either.

The correct option is A. There is the random movement of substances into and out of the cell.

What is diffusion?

A substance diffuses when there is a net migration from one area of higher concentration to another area of lower concentration.

A concentration gradient is produced by the difference in concentration between two environments, and this gradient is what causes diffusion.

The answer is neither B nor C since this movement does not require assistance such as additional energy molecules for active transport or integral membrane proteins for directed movement.

If a cell and its environment are in equilibrium, then the concentration of substances inside and outside the cell are equal, and any movement that occurs is due to the random movement of substances across the plasma membrane.

Therefore, The correct option is A. There is the random movement of substances into and out of the cell.

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Answer: B membrane bonded nucleus

Explanation:

Answer:

The correct answer is: convergent evolution              

Explanation:

Convergent evolution is a type of evolution, in which analogous traits or analogous structures are formed in organisms that are not closely related, due to their exposure to similar environmental conditions.

It is a type of independent evolution in which the species of different ancestry evolve analogous traits or structures in order to adapt to similar environmental conditions.

Therefore, the presence of chitin in the cell walls of fungi and the exoskeletons of arthropods is most likely due to convergent evolution.

Answer:

selective and differential medium .

Explanation:

Based on the information provided within the question it seems that this type of medium would be referred to as a selective and differential medium . This is because such high NaCL levels are designed to stimulate and allow selective bacteria to grow, while also differential media because the fermented sugar is giving off a yellow halo which allows for the differentiate between the bacteria.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

The medium discussed is called Mannitol Salt Agar (MSA), which is both selective for halotolerant bacteria and differential due to the presence of mannitol and a pH indicator, phenol red.

The medium described in your question is known as Mannitol Salt Agar (MSA). This medium is a selective and differential medium - selective because it contains a high NaCl concentration that inhibits the growth of many bacteria but allows halotolerant bacteria like Staphylococcus aureus to grow, and differential because it contains mannitol and a pH indicator, phenol red. When Staphylococcus aureus ferments mannitol, it produces acid, causing the pH to drop and the phenol red to change color from red to yellow, indicating a positive fermentation reaction.

Answer: out of curiosity is this question short response and if so are there any parameters to stay in because if we are being very technical the "client" could kill himself and not have to worry about any form of infection.

Final answer:

To prevent infection from developing in a cut finger, the wound should be cleaned with soap and water, followed by an antiseptic, and kept covered with a sterile bandage. This approach helps to degerm the area and assists the body's second line of immune defense in destroying any microorganisms that may have entered the wound.

Explanation:

When a client cuts their finger while cutting vegetables, it's important to promptly address the wound to prevent infection. The first step would be to clean the cut thoroughly to remove any foreign agents such as microorganisms. This is an example of degerming, which significantly reduces microbial numbers on living tissues using a mild chemical, like soap and water, followed by an antiseptic like hydrogen peroxide or alcohol to disinfect the area. If bacteria do enter the wound, they would face the body's innate immune system, specifically the second line of defense, which includes various immune cells and responses that would work to destroy the foreign agents and prevent infection from developing.

Additionally, it's important to keep the wound clean and covered with a sterile bandage to protect it from further exposure to pathogens. In the event of a serious cut or signs of infection, seeking medical attention is imperative to receive proper wound care, which could involve debridement, the removal of dead or infected tissue, to prevent an infection from spreading.

Answer:

75% chance of having four normal phenotype children without albinism.

50% chance of having four children who are carriers of the gene with normal phenotype.

Explanation:

Albinism results from an autosomal recessive gene.  In order to solve this problem we have to draw a punnet square and figure out the genotypes of the parents.  So with the genotype of the parents both parents have to be carriers of the trait since it is an autosomal recessive trait.

Genotype of female I-1 = Aa

Genotype of male I-1 = Aa

PARENTS A a

A                AA  Aa

a                Aa  aa

75% chance of having four normal phenotype children without albinism.

50% chance of having four children who are carriers of the gene with normal phenotype.

25% chance of having children with albinism.

The probability of the parents having any other outcome except for one child with albinism and three with normal pigmentation is approximately 32%, based on the principals of Mendelian genetics.

The probability of I-1 and I-2 having an outcome of four children without at least one child being albino is based on Mendelian genetics principles. Albinism is a recessive genetic disorder, meaning that both parents must contribute an albino allele for a child to exhibit albinism. Assuming both parents are heterozygous for albinism (each carries one albino allele and one normal allele), the probability of them having a child with albinism is 25%, or 1 in 4. However, probability applies independently to each child they have, and is not influenced by the outcomes of previous offspring.

In this scenario, the possible genetic combinations for the children are: two normal pigmentation alleles (NN), one normal and one albino allele resulting in normal pigmentation (Nn or nN), or two albino alleles (nn). The probability for each child to be NN or Nn/nN (normal pigmentation) is 75%, while the probability for a child to be nn (albino) is 25%. Therefore, the probability of having four consecutive children without albinism (NN or Nn/nN) is (0.75)^4 = 0.3164 or approximately 32%. So, there is a 32% chance of them having an outcome of four children all with normal pigmentation.

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Answer:

Within the extracellular fluid, the major cation is sodium and the major anion is chloride.

Chloride is a major contributor to the osmotic pressure gradient between the ICF and ECF, and plays an important role in maintaining proper hydration. It functions to balance cations in the ECF, maintaining the electrical neutrality of this fluid.

Chloride is by large the major anion in the extracellular fluid.

Its concentration in blood plasma is around 98.00–107.00 (mM), in  cerebrospinal fluid (CSF) around 118.00–132.00 (mM) and in urine around 110.00–250.00 (mM); while the concentrations of bicarbonate (HCO3-), the second most abundant anion in blood is 22.00–29.00 (mM).

Chloride is the predominant extracellular anion. Chloride is a major contributor to the osmotic pressure gradient between the ICF and ECF, and plays an important role in maintaining proper hydration. Chloride functions to balance cations in the ECF, maintaining the electrical neutrality of this fluid.

*ICF = intracellular fluid

ECF = extracellular fluid

Final answer:

Chloride (Cl⁻) is the major anion present in the extracellular fluid (ECF), which helps in maintaining the balance and neutrality of the body fluids.

Explanation:

The major anion found in the extracellular fluid of the body is chloride (Cl). In the extracellular fluid (ECF), the balance of electrolytes is essential to maintain a neutral charge, with various cations such as sodium (Na⁺), potassium (K⁺), calcium (Ca²⁺), and magnesium (Mg²⁺) being neutralized by anions like chloride.

Chloride ions serve to balance the charge of the cations, playing a critical role in maintaining fluid balance, pH, and electrical neutrality.

Answer take one piece of the squirrels diet away and see if anything has changed, if not give it that part back and take something else. repeat till change happens if nothing happens then change hypothesis

Answer: False.

Explanation:

Epithelial tissue is found in the linings of many structures throughout the body. There are two kinds of epithelial tissue: simple and stratified. And they  perform different functions and are structured differently.

The simple epithelium consists of one single layer of cells. In this way, all cells are in direct contact with the basement membrane and are separated from the connective tissue. The main function of this epithelium is absorption and filtration.

The stratified epithelium is composed of many layers of cells that are stacked together. In this way, this epithelium has the function of protecting against physical and chemical damage.

Answer:

D.  It is carried out in cells that are involved in sexual reproduction.

Explanation:

Answer:

D) It is carried out in cells that are involved in sexual reproduction.

Explanation:

The option that best describes the process of meiosis is it is carried out in cells that are involved in sexual reproduction.

Answer:

-Alphaproteobacteria

-Betaproteobacteria

Explanation:

Final answer:

For studying the role of proteobacteria in the global nitrogen cycle, Beta Proteobacteria is the correct option to focus on, as they play a significant role in this biochemical process.

Explanation:

If you are setting up your own lab to study the role of proteobacteria in the global nitrogen cycle, focusing on specific classes within the proteobacteria phylum is crucial. Based on the information provided, Beta Proteobacteria play a significant role in the nitrogen cycle. These bacteria are diverse and include species fundamentally involved in nitrogen transformations. Therefore, your research should include studying Beta Proteobacteria.

While other classes of proteobacteria, such as Delta and Epsilon, have notable roles in other environmental or health-related aspects, they are not primarily noted for their involvement in the nitrogen cycle in the provided context. Thus, the correct option for your research focus should be:

Answer: 2

Explanation:

A germ cell is a cell that gives rise to gametes. This is through meiosis, a type of cell division that reduces the chromosome number by half. In this way, four haploid cells are created, each genetically different from the parent cell.

During meiosis I, crossing over takes place. It consists on the exchange of genetic material between two homologous chromosomes to create recombinant chromosomes. Then, if there is a mutation not corrected, it would end up only in one of those two chromosomes. At the end of meiosis I, these homologous chromosomes are separated into two daughter cells. During meiosis I, the sister chromatids of each chromosome within the two daughter cells are separated, creating four daughter gametes.

So, the mutation that was only on one chromosome ended up in one of the two cells created in meiosis I. Then that cell with the mutation divided again during meiosis II, creating two more cells. So, here we have two gametes with one mutation each. On the other hand, the cell that did not receive the mutation also created two daughter cells in meiosis I but with their normal genes. And that same one created two other cells during meiosis II, also normal. The total is 4 cells, only 2 affected by the mutation.

Final answer:

All four gametes produced by meiosis from the mutated germ cell in a male mouse will carry the mutation, as germ-line mutations are passed on to every gamete formed post-mutation.

Explanation:

The question revolves around the consequences of a mutation in the germ cell of a wild-type male mouse, specifically how many gametes will carry the mutation if it occurs prior to DNA replication and is not corrected. Germinal or germ-line mutations, like the one described, occur in reproductive cells (gametes) and are significant because they can be passed to offspring, with every future somatic and germ-line cell of the offspring containing this mutation.

Given that mutations in germ cells are transmitted to all gametes formed from that cell post-DNA replication and subsequent meiosis, and considering that meiosis typically produces four gametes from each germ cell, all four gametes from the mutated germ cell would carry the mutation.

Answer:

c. type of nucleus

Explanation:

Prokaryotes are called so because they do have genetic material but its not membrane bound and so an organelle defined as nucleus is not present.

The answers are central and peripheral

Final answer:

Eddie's lethargy may be related to a problem with the central nervous system (brain-based) or the endocrine system (thyroid gland issue). Thyroid-stimulating hormone (TSH) deficiency can cause weight gain and fatigue because it leads to insufficient thyroid hormone production, which slows metabolism.

Explanation:

If the issue with Eddie's energy levels is originating in his brain, it would be related to the central nervous system (CNS), which includes the brain and spinal cord and is responsible for integrating sensory information and responding accordingly. The CNS regulates the activity of all parts of the body and is where the production of thyroid-stimulating hormone (TSH) is controlled, specifically by the pituitary gland in response to signals from the hypothalamus. If the problem originates in his gland, it is related to the endocrine system, which is composed of glands that produce and secrete hormones. The thyroid gland is a part of this system and would be where the hormonal issue would be present if it's not a problem with CNS signaling.

Terry's recent weight gain and fatigue might be due to a deficiency of TSH because this hormone stimulates the thyroid gland to produce thyroxine (T4) and triiodothyronine (T3), which regulate the body's metabolism. If his body does not produce enough TSH, the thyroid may not release sufficient levels of thyroid hormones, leading to a slower metabolism, which can result in weight gain and feelings of lethargy.