Explanation

The Mimosa plant exhibits thigmonastic movement, which is a type of tactile or touch-induced movement.

When the Mimosa plant's leaves are touched or disturbed

They rapidly fold inward and droop, a phenomenon known as thigmonastic movement or thigmonasty.

This response is thought to be a defense mechanism against herbivores or other threats.

The movement is not due to changes in turgor pressure or growth

But is instead a rapid reversible response to mechanical stimulation. 

Explanation

Vitamin C, also known as ascorbic acid, is necessary for the growth, development and repair of all body tissues.

Amla is also a good source of Vitamin C.

Explanation

The correct statement regarding flagella is that they originate from basal bodies.

Flagella are motile structures anchored in the cell by basal bodies, which help in cell movement.

Explanation

If the co-factor is a non-protein like a metallic ion, it is referred to as an activator.

Activators are essential for enzyme activity but are not part of the enzyme's protein structure.

Explanation

"Antigen is a foreign protein or any other molecule which stimulates the formation of an immunogenic response."

Antigens trigger the immune system to produce antibodies and initiate a defensive response.

Explanation

The hydrophilic end of a phospholipid molecule is polar because of the presence of a phosphate group.

The phosphate group contributes to the molecule's polarity.

It allowing it to interact with water, in contrast to the hydrophobic fatty acid tails.

Explanation

In the journey of electrons from photosystem II to photosystem I, plastocyanin is reduced by the cytochrome complex.

The cytochrome complex facilitates the transfer of electrons to plastocyanin, which then carries them to Photosystem I.

Explanation

In incomplete dominance, the heterozygous phenotype is intermediate between the two homozygous phenotypes.

The F2 generation from a cross between two heterozygotes will show a 1:2:1 phenotypic ratio, where one part shows the dominant trait, two parts show the intermediate trait, and one part shows the recessive trait.

Explanation

Explanation

According to the endosymbiosis theory, flagella may have derived by the ingestion of prokaryotes similar to spirochete.

This theory suggests that eukaryotic cells may have evolved through symbiotic relationships with engulfed prokaryotic organisms.