1. Which one of the following cell organelles is correctly matched with its function?

(a) Ribosomes  Synthesis of proteins

(b) Mitochondria  Secretion of enzymes

(c) Plasma membrane  Freely permeable

(d) Centrosome Carries genes

 

2. All life starts as

(a) an egg

(b) a single cell

(c) a gene

(d) a chromosome

 

3. Which one of the following is found both in the cells of a mango plant and a monkey?

(a) chloroplasts

(b) centrioles

(c) cell wall

(d) cell membrane

 

4. A plant cell can be identified from an animal cell by the

(a) absence of centrosome

(b) presence of cell membrane

(c) presence of vacuoles

(d) none of the above

 

5. Plant cell has a cell wall made of

(a) Protein

(b) Fructose

(c) Cellulose

(d) Fatty acids

 

6. The cell organelle that helps in respiration of the cell is

(a) Mitochondria

(b) Lysosome

(c) Ribosome

(d) Centrosome

Name the part of the cell concerned with the following.

(a) Liberation of energy

(b) Synthesis of proteins

(c) Transmission of hereditary characters from parents to offspring

(d) Initiation of cell division

(e) Hydrolytic in function

(f) Entry of only certain substances into and out of the cell

State whether the following statements are true (T) or false (F):

A.

All animal cells contain a cell wall.

B.

A cell wall is made up of protein.

C.

Centrosome occurs in animal cells

D.

Plant cells contain large vacuoles.

E.

Protoplasm is the part of the cell which surrounds the nucelus.

F.

Genes are located in chromosomes.

G.

Anthocyanins are the pigments of flowers, which are dissolved in cell-sap.

How many chromosome pairs are found in human cells?