What is the major difference between animals and fungi in how they obtain nutrients?
What will be an ideal response?What will be an ideal response?
ANSWER: Fungi are absorptive heterotrophs and animals are ingestive heterotrophs. Fungi obtain
nutrients by extracellular digestion. They are not mobile and they lack mouths or
appendages for capturing and handling food items.
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The molten globule model of protein folding suggests:
A. hydrogen bonding of secondary structures drives folding. B. translation of the polypeptide is complete before folding begins. C. each domain of a polypeptide folds independently. D. intermediates of increasing free energy are created. E. hydrophobic residues coalesce to form intermediate structures.
Which of the following reactions would require the hydrolysis of at least two ATP molecules (?G = -14.6 kCal) for it to occur?
A. A reaction that has a ?G = -8 kCal. B. A reaction that has a ?G = +8 kCal. C. A reaction that has a ?G = -16 kCal. D. A reaction that has a ?G = +16 kCal. E. A reaction that has a ?G = -14.6 kCal.
Antimicrobial drugs can be divided into categories based on the metabolic target they affect. Identify one of these targets from the list below.
A) inhibition of cell wall lysis B) inhibition of protein denaturation C) interference with cell membrane function D) inhibition of folic acid decomposition
You are studying a plant with mutant, nonfunctional PIN proteins. Assuming this plant could otherwise develop normally, predict how you might expect this plant to respond to directional light.
A. The plant will move randomly. B. The plant will not move in response to light. C. The plant will bend away from the light. D. The plant will bend toward the light.