Cells with a relatively simple cell morphology that do not have a true membrane-delimited nucleus are called
A. eukaryotes.
B. nokaryotes.
C. urkaryotes.
D. prokaryotes.
Answer: D
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A recessive allele: Check all that apply.
_____ will have no noticeable effects on an organism's phenotype if a dominant allele is present _____ will never have an effect on an organism's phenotype _____ can be on either the maternal or the paternal chromosome _____ will have an effect on an organism's phenotype if the individual is homozygous for the recessive allele
Food-borne pathogens are most commonly identified by
A. standard culture techniques. B. polymerase chain reaction (PCR). C. pulsed-field gel electrophoresis. D. None of the choices are correct.
If citrate levels are high in the cell, but ATP levels are low, what do you think will happen in the cell?
A. Glycolysis will be inhibited, but the Citric acid cycle will be functional, allowing it to be utilized to break down acetyl-CoA generated from beta-oxidation. B. Glycolysis and the Citric acid cycle will both be inhibited, thus under these conditions there will be no mechanism to generate ATP. C. In the presence of glucose, glycolysis will run to generate energy for the cell, but the Citric acid cycle will be inhibited. D. The electron transport chain will be inhibited, causing a build-up of NADH and FADH2. This will inhibit the Citric acid cycle, but in the presence of glucose, glycolysis will still run coupled with fermentation to regenerate NAD+.
When the level of glucose in your blood is high, your body is able to store excess glucose in the liver by forming glycogen. When blood glucose levels fall, this stored glucose can be released. Based on this information, which of the following is TRUE?
A) Glycogen is a polysaccharide formed by joining excess monosaccharides of glucose. B) Glucose is a polysaccharide that can join to form the monosaccharide glycogen. C) Glucose is not an organic molecule, but glycogen is an organic molecule. D) Glycogen is a highly branched functional group that forms a larger glucose polymer.