exam (all tests With Correct
answers
a. histones, chromatin - ANSWER DNA is wrapped around ______________ to form
_________________.
A) proteins; nucleosides
B) proteins; nucleotides
C) histones; nucleosides
D) histones; nucleotides
E) histones; chromatin
a. R group - ANSWER The difference between one amino acid and another is found in the ...
a. amino group
b. carboxyl group
c. R group
d. peptide bond
e. carbon atoms
1. true - ANSWER True or false? Activated RTK can activate Ras or Akt.
a) true
b) false
a. 6, 2 and 2 - ANSWER 13. In the Kreb's cycle, how many NADH, FADH2 and ATP molecules are made
for each glucose?
a. 3, 1 and 1
b. 6, 2 and 2
c. 3, 2 and 2
d. 2, 2 and 4
,b. semiconservative - ANSWER DNA replication is said to be:
A) conservative
B) semiconservative
C) liberal
D) moderate
2. 2.5 - ANSWER In the mitochondrial electron transport chain, how many ATP molecules are
made for each NADH?
a. organic acid - ANSWER The following functional group makes an __________. R-COOH
a. ester
b. ether
c. alcohol
d. aldehyde
e. organic acid
3. c oxygen gas - ANSWER Which of the following is MOST LIKELY to cross a membrane by simple
diffusion?
a) an amino acid
b) a proton
c) oxygen gas
d) a polysaccharide
e) all of the above
a. adenine and guanine - ANSWER Which of the following are purine nucleotides?
A) Adenine and Thymine
B) Guanine and Cytosine
C) Thymine and Cytosine
D) Adenine and Guanine
, 4. Prokaryotic cells do not have a membrane-bound nucleus, but eukaryotic cells do have such a
nucleus - ANSWER Which of these best distinguishes a prokaryotic cell from a eukaryotic cell?
5. E. all of these statements are correct - ANSWER Which of the following statements is correct?
a. All organisms are composed of cells.
b. Cells come only from pre-existing cells.
c. Cells are the fundamental unit of life.
d. Cell theory is one of the unifying concepts of biology.
e. All of these statements are correct.
a. light microscope - ANSWER What type of microscope would you use to observe the behavior of
unicellular organisms in a drop of pond water?
a. light microscope
b. scanning electron microscope (SEM)
c. transmission electron microscope (TEM)
d. atomic force microscope
a. all of these statements above are true about water - ANSWER Which of the following is true of
water?
a. it can dissolve polar molecules
b. it has surface tension
c. it has a high heat capacity so that it doesn't change temperature rapidly
d. the solid form is less dense than the liquid form
e. all of the above are true statements about water
a. mitochondrion - ANSWER The organelle where aerobic respiration occurs to generate most of the
cell's useable energy is:
a. mitochondrion
b. lysosome
c. ribosome
d. Golgi apparatus
e. chloroplast
f. chloroplasts - ANSWER Plant cells are able to make their own food because they have
a. smooth endoplasmic reticulum
b. mitochondria
c. rough endoplasmic reticulum
d. lysosomes
e. chloroplasts