Lipids differ from other large biological molecules in that they _____.

A. are much larger
B. are not truly polymers
C. do not have specific shapes
D. do not contain carbon
E. do not contain nitrogen and phosphorus atoms


Ans: B. are not truly polymers

Biology & Microbiology

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Fluorescence occurs when

a. a high-energy electron returns to its ground state by releasing energy in a photon. b. a low-energy electron moves to a high-energy state by absorbing heat. c. a high-energy electron leaves its nucleus and moves to a different molecule. d. a pigment molecule accepts a high energy electron and releases a photon of energy e. the energy from an electron is transferred to a different molecule while the electron returns to the ground state.

Biology & Microbiology

The principle of comparative advantage holds that nations should

a. specialize in activities for which they have the lowest opportunity cost. b. strive to become self-sufficient in production. c. produce only goods and services for which they have absolute advantage. d. become less labor-intensive and more capital-intensive.

Biology & Microbiology

In an autosomal dominant disorder such as Huntington's disease, two carrier parents have the probability of passing

the gene onto ____ percent of their children.

a. 0 b. 25 c. 50 d. 75 e. 100

Biology & Microbiology

In a human, the ________ provide(s) a common passageway for both food and air

A) bronchioles B) trachea C) pharynx D) alveoli

Biology & Microbiology