Morphology of Flowering Plants — BIOLOGY STD 11 Science — Question

What term is used for the promotion of flowering under low temperature? Which plant hormone can replace the cold treatment?

Who first isolated auxin? Name the plant source.

Give an example of plants with. Haplontic life cycle.

The cell wall of cells of a plant tissue shows the presence of hemicellulose and pectin. Name the tissue.

Mention the possible location in the chloroplast, where cyclic flow of electrons (cyclic photophosphorylation) occurs.

What is the function of invertase in plants?

You must have observed a dark-reddish brown scum formed at the site of a cut or an injury in the body. What is it made of?

How many sodium ions go out and how many potassium ions enter the cell per cycle through the sodium potassium pump?

Name the stage of cell cycle at which one of the following events occur: Centromere splits and chromatids separate.

Why do the chromosomes become short and thick in prophase?