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This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.
1. |
Which of the following contains a linear system of conjugated double bonds? |
A. | -carotene |
B. | chlorophyll |
C. | chloroplast |
D. | thylakoid |
Answer» B. chlorophyll | |
2. |
Which of the following type of spectrum is a plot of efficiency of different types of wavelengths in bringing about the photosynthesis? |
A. | absorption spectrum |
B. | action spectrum |
C. | efficiency spectrum |
D. | reflection spectrum |
Answer» C. efficiency spectrum | |
3. |
Carotenoids dissipate absorbed energy as heat. |
A. | True |
B. | False |
Answer» B. False | |
4. |
What are carotenoids? |
A. | pigments |
B. | cell organelles |
C. | terrestrial plants |
D. | granulated thylakoids |
Answer» B. cell organelles | |
5. |
Which atoms are present in the porphyrin of a chlorophyll molecule? |
A. | iron |
B. | magnesium |
C. | calcium |
D. | sulphur |
Answer» C. calcium | |
6. |
Which part of the chlorophyll is responsible for absorption of light? |
A. | hydrophobic phytol chain |
B. | porphyrin ring |
C. | thylakoid membrane |
D. | outer membrane |
Answer» C. thylakoid membrane | |
7. |
Pigments absorb light of particular wavelengths. |
A. | True |
B. | False |
Answer» B. False | |
8. |
Photon of light of higher wavelength has _____________ energy. |
A. | higher |
B. | lower |
C. | intermittent |
D. | dissipated |
Answer» C. intermittent | |
9. |
Which types of molecules are synthesized in light-independent (dark) reactions? |
A. | proteins |
B. | glycolipids |
C. | carbohydrates |
D. | nucleic acids |
Answer» D. nucleic acids | |
10. |
Energy absorbed from sunlight is stored as chemical energy in which of the following biomolecules? |
A. | ATP, ADP |
B. | ATP, NADPH |
C. | NAD, FAD |
D. | NADH<sub>2</sub>, ATP |
Answer» C. NAD, FAD | |