Which biomolecule is most associated with the structure and function of cell membranes?

a. Polysaccharides
b. steroids
c. DNA
d. phospholipids
e. ATP


ANSWER: d

Biology & Microbiology

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Answer the following statements true (T) or false (F)

1. A person whose ancestors were cattle herders is more likely to express the lactase gene as an adult. 2. All sugars are absorbed via secondary active transport. 3. In omnivores, including humans, the cecum is an important organ for digestion of cellulose. 4. Fat absorbed by the small intestine enters the lymphatic system.

Biology & Microbiology

Which of the following is not a fundamental property of carbon?

A) Carbon-containing molecules are diverse. B) Carbon-containing molecules may form stereoisomers. C) Carbon-containing molecules are stable. D) Carbon has a valence of 4. E) Carbon atoms are most likely to form ionic bonds with one another.

Biology & Microbiology

A true coelom develops within the ectoderm

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

Which type of cell found in the nervous system is the most numerous?

A) Schwann cell B) sensory cell C) neuroglial cell D) neuron

Biology & Microbiology