Subject SAT (College Board) Biology: Questions 708 - 712 of 805
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Question number: 708
» Cell
Question
In the photosynthesis the light in-dependent reaction occurs in
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Thylakoid lumen |
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| b. | PS-II |
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| c. | Stromal matrix |
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| d. | PS-I |
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Question number: 709
Question
The diagram below represents reactions taking place in a bacterium in which amino acids are produced from other amino acids by the action of specific enzymes.
The numbers 1 - 3 refer to different amino acids and the letters V and X refer to different enzymes.
When an excess of amino acid 3 is added into the bacterium the rate of the reactions is reduced. What is the cause of this?
V and X Refer to Different Enzymes
V and X refer to different enzymes
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Excess substrate inhibiting the enzyme |
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| b. | Positive feedback |
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| c. | End product inhibition |
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| d. | Enzyme denaturation |
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Question number: 710
Question
Out of 38 ATP molecules produced per molecule of glucose, 32 ATP molecules are formed from NADH/FADH2
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Respiratory chain |
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| b. | EMP |
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| c. | Kreb’s cycle |
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| d. | Oxidative phosphorylation |
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Question number: 711
Question
When two genetic loci produce identical phenotypes in cis and trans position, they are considered to be
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | multiple alleles |
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| b. | different genes |
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| c. | the parts of same gene |
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| d. | pseudoalleles |
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Question number: 712
Question
Which one of the following conditions is least likely to denature an enzyme?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | High temperature |
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| b. | A low temperature |
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| c. | Heavy metal ions |
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| d. | Extreme pH |
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