Question

Class 9th
Assignment of biology
M.C.Q. questions of Chl=5 biology
1. Which of the following can be made into crystal?
(a) A Bacterium (b) An Amoeba
(c) A Virus (dj A Sperm
2. A cell will swell up if
ta) The concentration of water molecules in the cell is higher than the concentration of wat
molecules in surroundiaíg medium
(b) The concentration of water molecules in surrounding medium is higher than water /
molecules concentration in the cell
(c) The concentration of water molecules is saſne in the cell and in the surrounding medi
( ) Concentration of water molecules does not matter
3. Chromosomes are made up of
(a) DNA. (b) protein
(C) DNA and protein. (d) RNA
4. Which of these options are not a function of Ribosomes?
) It helps in manufacture of protein molecules
(ii) It helps in manufacture bf entymes
W) It helps in manufacture of hørmones​

Answer 1

Answer:

1. a

2. c

Explanation:

Answer 2

Answer:

1) (c) A Virus

2) (a) The concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium

3) (a) DNA

4) (c) (iii) and (iv)

Explanation:

2) it is because of the property that a liquid will move from a place of low concentration to a place of higher concentration.

3) chromosomes are made up of dna along with a protein chromatin.

4) Ribosomes are majorly involved in protein synthesis, as these are the sites of protein synthesis and enzymes. It also synthesizes amino acids which polymerize to form proteins.

hope it helps.

please mark it as the brainliest answer :-) :-)