1. the mitochondrion is host to which portion of cellular respiration?

glycolysis
alcoholic fermentation
lactic acid fermentation
the krebs cycle
question 2(multiple choice worth 2 points)
(02.03 mc)

which of the following best describes what happens after a lysosome is made in the rough endoplasmic reticulum of a plant cell?

it becomes embedded in the cell membrane and allows ions to enter the cell.
it is sent to the golgi apparatus for further processing.

it enters the chloroplast and absorbs light during photosynthesis.
it begins releasing enzymes to break down large molecules.
question 3(multiple choice worth 2 points)
(02.01h hc)

which characteristic of an amino acid is most affected by the uniqueness of the organic side chain?

the amino acid's ability to react with other amino acids
the carboxyl group (cooh) ability to react
the central carbon atom's attachment point
the amino acid’s physical and chemical properties
question 4(multiple choice worth 2 points)
(02.03 mc)

why is it important that the inside of a lysosome have a lower ph than the surrounding cytoplasm in the cell?

the protein molecules constructed in the lysosome form best at a lower ph.
the substances stored in a lysosome are most stable at a lower ph.
the digestive enzymes in the lysosome work best at a lower ph.
the waste products stored in the lysosome require a lower ph.
question 5(multiple choice worth 2 points)
(02.06 lc)

which of the following molecules get recycled during photosynthesis?

nadph and atp
co2 and nadph
atp and glucose
water and glucose
question 6(multiple choice worth 2 points)
(02.02h mc)

which of the following does not provide evidence for endosymbiotic theory?

both mitochondria and chloroplasts contain their own ribosome.
mitochondria and chloroplasts control their own reproduction.
both mitochondria and chloroplasts contain their own genetic material.
mitochondria and chloroplasts reproduce without the use of binary fission.
question 7(multiple choice worth 2 points)
(02.02 hc)

water (h2o), carbon dioxide (co2), and oxygen (o2) are all quite small molecules, yet they move across cell membranes differently. both co2 and o2 passively diffuse across the cell membrane directly while h2o moves across the cell membrane by facilitated diffusion. what can be concluded about these three molecules based on the way they react to the cell membrane?

the water molecules are attracted to the lipid tails of the cell membrane, but the carbon dioxide and oxygen molecules are not.
the water molecules are too small to pass between the lipid tails of the cell membrane, while the molecules of carbon dioxide and oxygen are not.
the water molecules are repelled by the lipid tails of the cell membrane, but the carbon dioxide and oxygen molecules are not.
the water molecules are too large to pass between the lipid tails of the cell membrane, while the molecules of carbon dioxide and oxygen are not.