Please help QUESTION 23
23. Which of the following is NOT a function of proteins? (HB2A1)
provides structural support for cells
b. long term energy storage
c. speeds up reactions
d.
movement and transportation
24. In humans and other multicellular organisms, which substance plays a central role as a source of short-term
energy? (HB2A1)
a. carbohydrate
C. protein
b. fat
d. water
25. Which of the following is NOT part of a DNA nucleotide? (HB2A1)
a. deoxyribose
C. nitrogen base
b. phosphate
d. ribose
A
B
QUESTION 24

Read the scenario below and answer the question that follows. hallie is reading a novel in the library when susan, her best friend, slumps down in a chair next to her. susan doesn't say anything, but hallie knows that susan is upset because she is slumping in her seat and rolling her eyes. a psychologist would explain that hallie is interpreting her friend's emotion based on a. the behavioral component of emotion b. her friend's ability to regulate emotion c. the verbal component of emotion d. the physiological component of emotion select the best answer from the choices provided a b c d

Achange in direction without a change in speed is called velocity

Assume that you are interested in separating short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range. you have two recipes for making your polyacrylamide gels: one recipe uses 1.5 percent agarose and would be considered a “hard gel,” while the other uses 0.5 percent agarose and would be considered a loose gel. which gel should you use to separate the short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range?