Explore topic-wise MCQs in Life Sciences.

This section includes 10 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.

What is the location of photosynthetic pigment in an oxygenic photosynthetic organism?

A. Plasma membranes
B. Thylakoid membranes
C. Chromatophores
D. Chlorosome
Answer» C. Chromatophores
2.

Name the photosynthetic pigment which is structurally similar to bile pigment bilirubin?

A. Chlorophyll
B. Carotene
C. Xanthophyll
D. Phycobilins
Answer» E.
3.

Name the mechanism which prevents photo-oxidative damage in plants?

A. Photosynthesis
B. Photorespiration
C. Photoprotection
D. Phytoprotection
Answer» D. Phytoprotection
4.

Accessory pigments absorb light at more wavelengths as compared to chlorophyll.

A. True
B. False
Answer» B. False
5.

Name the pigment which is responsible for the yellow color of leaves in autumn and orange color of carrots?

A. Phycobilins
B. Chlorophylls
C. Carotenoids
D. Bacteriochlorophyll
Answer» D. Bacteriochlorophyll
6.

Which of these features are not of chlorophyll?

A. It has Mg2+ as the central metal ion
B. It has cyclopentanone ring fused with a pyrrole ring
C. It has a planer tetrapyrrole ring structure
D. It is water-soluble pigment
Answer» E.
7.

Which of the following is not a lipid-soluble photosynthetic pigment?

A. Phycobilins
B. Carotenoids
C. Chlorophyll
D. Xanthophylls
Answer» B. Carotenoids
8.

Which of the following is an anoxygenic photosynthetic organism?

A. Plants
B. Photosynthetic protists
C. Cyanobacteria
D. Green and Purple photosynthetic organism
Answer» E.
9.

Classification of organisms as oxygenic or anoxygenic during photosynthesis is based on ______

A. The presence of Co2
B. The generation of oxygen
C. The presence of light
D. The presence of water
Answer» C. The presence of light
10.

Name the physiochemical process in which chemical energy is produced by light energy with the help of a photosynthetic organism?

A. Photosynthesis
B. Respiration
C. Oxidative decarboxylation
D. Oxidative phosphorylation
Answer» B. Respiration