Which one of the following phenomena is commonly referred as 'cell drinking?

1. Endocytosis

2. Exocytosis

3. Phagocytosis

4. Pinocytosis

If a chloroplast of plant is isolated and studied in a test tube the investigation is described

as

1. in vivo

2. in vitro

3. in situ

4. none of these.

An organelle present in all plant cells but absent from those of animals is

1. Mitochondria

2. peroxisome

3. glyoxysomes

4. Centrioles

Primary cell wall consists of a loose network of cellulose microfibrils impregnated with a matrix of

Which of the following is not a true subcellular organelle ?

1. Peroxisome

2. Ribosome

3. Chloroplast

4. Lysosome.

Golgi body is associated with

Which of the following cytoskelelal components of an eukaryotic cell play a major role in

protoplasmic streaming?

1. Microtubules

2. microfilaments

3. Intermediate filaments

4. None of these

Free radicals in our body have been implicated in

1. ageing

2. certain degenerative disorders

3. neurodegeneration

4. all the above

Which is not true for prokaryotic cells ?

If there were present no subcellular organelles in a eukaroytic cell, the rate of

metabolism will

1. increase

2. decrease

3. not change

4. increase dramatically.