What do free radicals do?
a. Improve the efficiency of aerobic respiration.
b. Act as coenzymes in glycolysis.
c. Damage biological molecules.
d. Remove metals that combine with oxygen gas.
e. Enhance enzyme activity.
ANSWER: c
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What group of fungi has the ability to penetrate its host's cell wall, thus increasing the efficiency with which materials are passed from fungus to host?
A) ectomycorrhizal fungi B) arbuscular mycorrhizal fungi C) endophytes D) lichens
Recent research has shown that myostatin can negatively regulate cardiac muscle growth
Indicate whether the statement is true or false.
Compare and contrast DNA and RNA
What will be an ideal response?
These epithelial cells function in secretion or absorption and are found in many glands and in the kidney tubules: ________
A) squamous B) cuboidal C) columnar D) stratified