Explore topic-wise MCQs in Life Sciences.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following correctly defines the yield of oxygen by the no. of photons absorbed?

A. Emerson enhancement effect
B. Quantum requirement
C. Photochemical reaction
D. Quantum Yield
Answer» E.
2.

What is red drop phenomenon?

A. Falling of red color in the spectrum
B. Drop in quantum yield in the red region of the spectrum
C. Drop in quantum yield in the far-red region of the spectrum
D. Falling of far-red color in the spectrum
Answer» D. Falling of far-red color in the spectrum
3.

Water is used as an electron donor in anoxygenic photosynthesis.

A. True
B. False
Answer» C.
4.

Name the filamentous fungi which are used in Engelmann s experiment to show photosynthetic activity?

A. Rhizopus stolonifer
B. Penicillium
C. Cyanobacteria
D. Spirogyra
Answer» E.
5.

What is the absorption spectrum?

A. The graph produced by absorption of light
B. The graph shows the photochemical reaction
C. The graph produced by absorption of oxygen
D. The graph shows oxygen evolution at a different wavelength
Answer» B. The graph shows the photochemical reaction