Essential nutrients may be lost through the urine due to the non-selectivity of the human kidney's filtration of tiny molecules. Here option A is the correct answer.
The mammalian kidney's filtration system is non-selective towards small molecules, which means that many small molecules such as water, ions, and waste products can pass through the glomerulus and into the tubules for excretion. However, this also means that essential nutrients, such as glucose and amino acids, can be lost through urine as well.
Option B is incorrect because harmful substances are typically filtered out by the kidney and not retained in the body. Option C is also incorrect because the kidney's filtration system is designed to handle a large volume of fluid and small molecules. Option D is not directly related to the non-selectivity of the kidney's filtration system.
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Complete question:
As a result of the non-selectivity of the mammalian kidney's filtration of small molecules ________.
A - Essential nutrients can be lost through urine
B - Harmful substances can be retained in the body
C - The kidney's filtration system becomes overwhelmed
D - The body's pH balance is disrupted
E - All of the above
the cat, felis domestica, has a diploid number of 38 chromosomes in its somatics cell. consisting of 19 homologous pairs ( that is 19 maternal and 19 paternal chromosomes). a student stated that only one fourth of the gametes produced by meiosis in this animal will have all of its chromosomes from either maternal or paternal origin. explain wether you think the student is right or wrong
Answer:
Explanation:
The student is incorrect. During meiosis, homologous chromosomes pair up and can undergo crossing over, where genetic material can be exchanged between maternal and paternal chromosomes. This results in the formation of genetically unique haploid cells (gametes) with a combination of chromosomes from both maternal and paternal origin.
In the case of a diploid organism with 19 homologous pairs, the total possible combinations of maternal and paternal chromosomes in the gametes is 2^19, or approximately 524,000. This means that there are a large number of possible combinations of chromosomes that can end up in a gamete, making it unlikely for all of the chromosomes in a gamete to come from either maternal or paternal origin.
Therefore, the correct statement is that only a small fraction of the gametes produced by meiosis in this animal will have all of its chromosomes from either maternal or paternal origin, while the majority of the gametes will have a combination of chromosomes from both maternal and paternal origin.
How does water flow?
identify the letter that indicates the organ that directs sperm towards the seminal vesicles during ejavulation
The letter that indicates the organ that directs sperm towards the seminal vesicles during ejaculation is D.
Ejaculation occurs during orgasm, which is when the intense physical and emotional sensations.
During ejaculation, the vas deferens, which is a tube that carries sperm from the testicles to the urethra, contracts and propels the sperm towards the prostate gland.
The prostate gland then adds a fluid to the semen to nourish and protect the sperm. Finally, the semen is propelled out of the body through the urethra during ejaculation.
The prostate gland (D) is the organ that directs sperm towards the seminal vesicles during ejaculation.
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compare and contrast anabolic and catabolic processes by dragging the labels to the correct areas of the venn diagram.
The above present areas of venn diagram represents the compare and contrast between anabolic and catabolic pathways. This Venn diagram shows relaionship between groups.
Metabolism can be represented into two types:
Catabolism Anabolism.First see the above required Venn - diagram for describing the catabolism and anabolism :
Circles that overlap have the common feature of catabolism and anabolism. Circles do not overlap have their own features.Examples for the catabolic pathway : Glycolysis : Breakdown of one molecule of glucose and releasing energy.lipolysis : Breakdown of triglyceridesCitric acid pathway - Oxidtion of acetyl CoA to release energy.Oxidative deaminationMuscle tissue breakdownExamples for the anabolic pathway:Fatty acids becoming triglycerides.Glucose becoming glycogenPhotosynthesis - sugar from CO₂.building block : Which consists synthesis of large protiens from amino acids.Synthesis of new DNA strands from nucleic acid (building block)For more information about anabolic and catabolic pathways, visit :
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4. Using a series of arrows, draw the branched metabolic reaction pathway described by the following statements, and use the diagram to answer the questions.
Pyruvate can be converted to either Oxaloacetate or ActeylCoA.
AcetylCoA can be converted to Citrate.
Citrate can be converted to Ketoglutarate
Ketoglutarate can be converted to Glutamate or Succinate.
Glutamate can be converted to Glutamine.
Succinate can be converted to Fumarate.
The enzyme that converts Succinate to Fumarate requires Mg++
Glutamine is a competitive inhibitor of the enzyme that catalyzes reaction of Ketoglutarate to Glutamate.
Fumarate is a noncompetitive inhibitor of the enzyme that catalyzes the reaction of Pyruvate to AcetylCoA.
Explain the function of Mg++
When the concentration of fumarate is very high, explain what happens to the concentrations of Glutamine and Oxaloacetate?
Is this an example of feedback inhibition or allosteric regulation? Explain your answer. What other information might be needed to make a better answer?
as characteristized in lecture, an oil spill is an example of: question 12 options: competition antagonism ammensalism commensalism
Antagonism can take one of two forms: competitive and non-competitive. Ketamine, on the other hand, is a non-competitive foe of the NMDA-glutamate receptor, whereas naloxone is a competitive foe of all opioid receptors. The correct answer is Antagonism.
Competitive antagonism is based on the idea that an agonist or antagonist can bind to the same recognition site(s) on the receptor and compete for those sites when they are present simultaneously.
A competitive antagonist blocks the agonist's action by binding to the same site as the agonist but not activating it. To prevent the receptor from being activated, a non-competitive antagonist binds to an allosteric (non-agonist) site on the receptor.
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using the chart below, explain which organism is most closely related to the human and why? which is most distantly related and why?
You can see from the chart below that the first species is in the animal kingdom while the other three are in the plant world. Just below the level of domains, the kingdom is a very high degree of categorization.
As a result, creatures from various kingdoms have relatively little in common. Sponge species are our most distant cousins according to the conventional animal tree of life. Like our non-animal ancestors (such as fungi), sponges are structurally basic creatures that lack many sophisticated animal characteristics including a nervous system, muscles, and a through-gut.
The gorillas, chimpanzees, and orangutans are the big apes that resemble humans the most physically. Yet, DNA testing has revealed that the chimpanzees are our closest living cousins; 95% of our DNA is the same.
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Correct Question:
Using the chart below, explain which organism is most closely related to the human and why? which is most distantly related and why?
You are crossing two pea plants. One is heterozygous for yellow. The second pea plant is homozygous for green. Use "G/g" as the letter to represent the gene for this problem.
Answer:
Parent 1 genotype: Gg
Parent 2 genotype: gg
gg's bro
