MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Photosystem I used which of the following in its photo-center? |
| A. | P700 |
| B. | P800 |
| C. | P900 |
| D. | P600 |
| Answer» B. P800 | |
| 2. |
The earliest photo synthesizers used which of the following as the source of hydrogen? |
| A. | CO<sub>2</sub> |
| B. | C<sub>6</sub>H<sub>12</sub>O<sub>6</sub> |
| C. | H<sub>2</sub>O |
| D. | H<sub>2</sub>S |
| Answer» E. | |
| 3. |
The carbon-assimilation reactions require ATP and NADPH in the ratio ___________ |
| A. | 3:2 |
| B. | 2:3 |
| C. | 3:4 |
| D. | 4:3 |
| Answer» B. 2:3 | |
| 4. |
Photosynthesis takes place in sac like membranes called ___________ |
| A. | Thylakoids |
| B. | Grana |
| C. | Photosystems |
| D. | Photons |
| Answer» B. Grana | |
| 5. |
Which pigment is used in human vision? |
| A. | Retinal |
| B. | Vitamin A |
| C. | Ferredoxin |
| D. | Beta-carotene |
| Answer» B. Vitamin A | |
| 6. |
When compared to retinal, chlorophyll can be described as a pigment that has a ____________ |
| A. | Narrow absorption range but high efficiency |
| B. | Narrow absorption range but low efficiency |
| C. | Wide absorption range but high efficiency |
| D. | Wide absorption range but low efficiency |
| Answer» B. Narrow absorption range but low efficiency | |