Which kind of metabolic poison would most directly interfere with glycolysis?

A) an agent that reacts with oxygen and depletes its concentration in the cell
B) an agent that binds to pyruvate and inactivates it
C) an agent that closely mimics the structure of glucose but is not metabolized
D) an agent that reacts with NADH and oxidizes it to NAD+


C

Biology & Microbiology

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Where in the lymph node do the T cells first encounter antigens presented by dendritic cells?

What will be an ideal response?

Biology & Microbiology

Uracil forms a complementary pair with __________ in RNA and __________ in DNA

a. adenine; adenine b. adenine; thymine c. thymine; thymine d. uracil; adenine e. adenine; uracil

Biology & Microbiology

Normally, only female cats have the tortoiseshell phenotype because _____

A) a male inherits only one allele of the X-linked gene controlling hair color B) the Y chromosome has a gene blocking orange coloration C) only males can have Barr bodies D) multiple crossovers on the Y chromosome prevent orange pigment production

Biology & Microbiology

A hydroxyl group is

A) also called a carbonyl group. B) characteristic of proteins. C) characteristic of alcohols. D) composed of two oxygen atoms.

Biology & Microbiology