CHAPTER 2

Question 1

features of animal cells:

Answer 1

o They contain a nucleus with a distinct membrane
o Cells do not have cellulose cell walls
o Their cells do not contain chloroplasts (so they are unable to
carry out photosynthesis)
o They contain carbohydrates stored as glycogen

Question 2

Plant cell structure

Answer 2

The main features of plant cells:
o They contain a nucleus with a distinct membrane
o Cells have cell walls made out of cellulose
o They contain chloroplasts (so they can carry
out photosynthesis)
o Carbohydrates are stored as starch or sucrose

Question 3

Nucleus

Answer 3

 Contains the DNA (genetic material)
which controls the activities of the
cell

Question 4

Cytoplasm

Answer 4

 A gel-like substance composed of
water and dissolved solutes
 Supports the internal structures of
the cell  Site of many chemical
reactions

Question 5

Cell membrane

Answer 5

 Holds the cell together separating the
inside of the cell from the outside
 Controls which substances enter or
leave the cell

Question 6

Ribosomes

Answer 6

 Found in the cytoplasm
 The site of protein synthesis

Question 7

Mitochondria

Answer 7

 The site of aerobic respiration

Question 8

Cell wall

Answer 8

 Made of cellulose (a polymer of

glucose)
 Gives the cell extra support,

Question 9

Chloroplast

Answer 9

 Contains the
green chlorophyll pigment that
absorbs light energy
for photosynthesis

Question 10

Permanent vacuole

Answer 10

 Contains cell sap: a solution of
sugar and salt
 Used for storage of certain materials
 Helps to support the shape of the
cell