B1a cell structure

Question 1

function of cytoplasm

Answer 1

site of chemical reactions in the cell

Question 2

function of nucleus

Answer 2

contains DNA

Question 3

function of cell membrane

Answer 3

controls the movement of substances in and out of the cell

Question 4

function of ribosome

Answer 4

where proteins are made

Question 5

function of mitochondria

Answer 5

site of respiration

Question 6

what three parts of a plant cell aren’t in an animal cell?

Answer 6

chloroplast, cell wall, vacuole

Question 7

function of vacuole

Answer 7

contains cell sap which keeps cell turgid

Question 8

function of cell wall

Answer 8

supports and strengthens the cell

Question 9

function of chloroplast

Answer 9

site of photosynthesis

Question 10

where is the DNA in a bacterial cell?

Answer 10

floats in cytoplasm

Question 11

what is a plasmid in a bacterial cell?

Answer 11

small rings of DNA

Question 12

what type of cell is a bacterial cell?

Answer 12

prokaryotic

Question 13

what type of cells are plant and animal cells?

Answer 13

eukaryotic

Question 14

what is cell differentiation?

Answer 14

cells changing to form different types of cells

Question 15

why is cell differentiation important?

Answer 15

without this ability our bodies wouldn’t develop or function properly

Question 16

what are specialised cells?

Answer 16

they have special features to help them function (for example sperm cells have a tail to swim to the egg)

Question 17

what are stem cells?

Answer 17

they can divide to form more cells of the same type

Question 18

what is the function of a nerve cell?

Answer 18

carries electrical signals

Question 19

what is a special adaptation of a nerve cell?

Answer 19

long branched connections

Question 20

what is the function of a sperm cell?

Answer 20

to fertilise an egg

Question 21

what is a special adaptation of a sperm cell?

Answer 21

long tail for swimming and lots of mitochondria for energy

Question 22

what is the function of a muscle cell?

Answer 22

contracts to allow movement

Question 23

what is a special adaptation of a muscle cell?

Answer 23

long and contains lots of mitochondria for energy

Question 24

what is the function of a root hair cell?

Answer 24

absorbs water and minerals from the soil

Question 25

what is a special adaptation of a root hair cell?

Answer 25

hair like projections to increase the surface area

Question 26

a. what is the function of xylem? b. what is this process called?

Answer 26

a. transports water from the roots to the stem and leaves b. transpiration

Question 27

what is a special adaptation of xylem?

Answer 27

made of dead cells with tough cell walls

Question 28

a. what is the function of phloem? b. what is this process called?

Answer 28

a. carries sugars from the leaves to the rest of the plant b. translocation

Question 29

what is a special adaptation of phloem?

Answer 29

made of living cells which have end plates with pores cell sap can then move through these pores