1. which of the following is a property of all cells a. they are unicellular b.
ID: 39888 • Letter: 1
Question
1. which of the following is a property of all cells
a. they are unicellular
b. they reproduce
c. they have the same amount of DNA
d. they all get energy from photosynthesis
e. A and B
2. Adding a phosphate group to a molecule that already has 2 phosphates makes a molecule
a. more stable
b. less stable
c. no charge in stabiltiy
d. uncharged
e. more hydrophobic
3. Trypsin and elastase are both enzymes that catalyze hydrolysis of peptide bonds. But trypsin only cuts next to lysine and elastase only cuts next to alanine. why?
a. Trypsin is a protein and elastase is not
b. ?G for the two reactions is different
c. the shape of the active site for the two enzymes is different
d. one of the reactions is endergonic and the other is exergonic
e. none
4. During aerobic respiration the hydrogen start off in ...and end up in .....
a. ATP,ADP
b Glucose, carbondioxide
c. oxygen, carboondioxide
d. Glucose, water
e. oxygen, water
Explanation / Answer
1. OPTION C , they all have same amount of DNA
2.OPTION A , MORE STABLE
3.OPTION E, NONE
4. OPTION E , OXYGEN AND WATER
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