Biology

The process whereby electrons are emitted from chlorophyll and returned to it unchanged is known as?

A. non-cyclic phosphorylation B. photochemical reaction C. photophorylation D. cyclic photophorylatlion Correct Answer: Option A A. non-cyclic phosphorylation

6 years ago

Kreb’s cycle occurs in the?

A. mitochondria B. cytoplasm C. nucleus D. ribosomes Correct Answer: Option A A. mitochondria

6 years ago

What will be the chromosome number of the hybrid of two varieties of a plant with 36 chromosomes in the endosperm cell?

A. 12 B. 24 C. 35 D. 48 Correct Answer: Option C C. 35

6 years ago

Which of the following methods is appropriate for the cultivation of cassava?

A. Budding B. Fragmentation C. Root cutting D. Stem cutting Correct Answer: Option D D. Stem cutting

6 years ago

Some animals return to water bodies to reproduce because?

A. natural enemies destroy their eggs on land B. water nourishes their embryos and their young ones C. they are…

6 years ago

The testes in male mammals descend into the scrotal sac because?

A. there is congestion in the lower abdomen B. they run the risk of being destroyed C. they need special…

6 years ago

During sexual reproduction in Paramecium, how many times does the zygote divide to produce eight nuclei?

A. 1 B. 2 C. 3 D. 4 Correct Answer: Option C C. 3

6 years ago

Which of the following is an effector organ?

A. Tongue B. Skin C. Nose bridge D. Ear glands Correct Answer: Option B B. Skin

6 years ago

Which of the following neurons may not have myelin sheath?

A. Effector cells B. Intermediate neurons C. Motor neurons D. Sensory neurons Correct Answer: Option A A. Effector cells

6 years ago

Sweat is produced during muscular exercise because?

A. the contracting muscles produce water B. fermentation occurs in muscles C. the temperature of the body rises D. the…

6 years ago
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