Lecture # 05

Question 1

The cytosol constitutes about __% of total cell volume.

Answer 1

The cytosol constitutes about 55% of total cell volume.

Question 2

what is the cytosol composed of?

Answer 2

the cytosol is composed of:

1) glucose,
2) mineral ions,
3) amino acids,
4) fatty acids,
5) ATP,
6) proteins,
7) lipids etc

Question 3

what is cytosol?

Answer 3

Fluid portion of cytoplasm is called cytosol.

Question 4

what is cytosol the site of?

Answer 4

cytosol is the site of many chemical reactions.

Question 5

what is Cytoskeleton?

Answer 5

a network of protein filaments is called Cytoskeleton.

Question 6

how many types of filamentous proteins

are present in the Cytoskeleton? List them.

Answer 6

3 types of filamentous proteins are present in the Cytoskeleton, which are:

i) micro-filaments ,
ii) micro-tubules and
iii) intermediate filaments

Question 7

Give two features of micro-filaments.

Answer 7

features of micro-filaments are:

1) Thinnest of all filamentous proteins
2) Composed of actin and myosin

Question 8

Give two features of micro-tubules.

Answer 8

features of micro-tubules are:

a) Largest of all filamentous proteins
b) Composed of tubulin

Question 9

Give a feature of Intermediate filaments.

Answer 9

One of the features of Intermediate filaments is that they are composed of several proteins.