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

Give an example for the following: Animal, which exhibits alternation of generation.

Discuss the regulation of kidney function by the heart.

Why are skeletal muscles also known as striated muscles?

Given that, average duplication time of E. coli is 20 minutes. How much time will two E. coli cells take to become 32 cells?

What name is given to the following in a cockroach?

1. Component units of a compound eye.
2. The external genitalia of a male cockroach.

Directions: Mark the odd one in each of the following groups. Sodium pump, polarised membrane, resting membrane potential, action potential.

After teaching cell division in the biology class, teacher asked the students to think and describe the role of mitosis in an adult, who has already attained maximum height. Read the above passage and answer the following questions.

1. What is growth?
2. Name atleast two other processes which involve cell division.
3. What value is expressed in the teacher's behaviour?

What are the special capillaries found in the internal epithelium of Bowman's capsule called?

Name the amino acid whose R-group is:

1. Hydrogen.
2. Hydroxy methyl, respectively.

Give example of:

1. Rhizome.
2. Tuber.