PART - 1 - Unit I : CH - 2 Biological Classification — BIOLOGY STD 11 Science — Question

Define critical photoperiod needed by plants for flowering.

Write the function of leaves.

Name the two fluids circulated in the body of mammals.

Arrange the following in the sequence in which you would find them in a plant starting from the periphery: Pericycle, Epidermis, Pith, Endodermis, Cortex.

1. Name the iron-containing complex protein present in human blood and mention its location.
2. What is its quantity in the blood of a normal healthy adult human?

What is the function of phloem parenchyma?

Mitosis cell division helps in regeneration process. How?

3F (FFF) hormone is related to which gland?

Define cytoskeleton.

Name disorder caused by hyperfunctioning of pituitary during.

1. Growth period or childhood.
2. After the growth period.