b1 cell-level system b1.1 cell structure

Question 1

what is a unicellular organism?

Answer 1

they are made up of only one cell e.g. bacteria, protists and yeast

Question 2

what is a multicellular organism?

Answer 2

they are made of many cells e.g. humans and plants

Question 3

what’s a eukaryotic cell?

Answer 3

contains a nucleus, relatively large in size and they are complete e.g. plant cells

Question 4

what is a prokaryotic cell?

Answer 4

does not include a nucleus and their genetic material floats in the cytoplasm and they are simple cells e.g. bacteria cells

Question 5

what is the function of a cell membrane?

Answer 5

controls what enters and leaves a cell

Question 6

what is the function of a cell wall?

Answer 6

tough outer coating which provides supports

Question 7

what is the function of the chloroplast?

Answer 7

is the site of photosynthesis

Question 8

what is the function of the cytoplasm?

Answer 8

a jelly substance which fills up the cell

Question 9

what is the function of the nucleus?

Answer 9

controls what the cell does

Question 10

what is the function of the vacuole?

Answer 10

stores liquid called cell sap

Question 11

what is the function of the ribosomes?

Answer 11

the site of protein synthesis in the cell

Question 12

what is the function of the mitochondria?

Answer 12

generates chemical energy

Question 13

what is the function of the plasmids?

Answer 13

carries extra genetic information

Question 14

what is the function of the flagellum?

Answer 14

helps move the bacteria

Question 15

what’s extra information about the cell membrane?

Answer 15

has holes called pores to let substances through

Question 16

what’s extra information about the cell wall?

Answer 16

it is made of strong cellulose

Question 17

what’s extra information about the chloroplast?

Answer 17

contains chlorophyll that absorbs sunlight

Question 18

what’s extra information about the cytoplasm?

Answer 18

where many chemical reactions take place

Question 19

what’s extra information about the nucleus?

Answer 19

contains the genetic information-chromosomes

Question 20

what’s extra information about the vacuole?

Answer 20

helps to support cell when it is full

Question 21

what’s extra information about the ribosomes?

Answer 21

all cells need it to make the proteins necessary for life

Question 22

what’s extra information about the mitochondria?

Answer 22

creates energy

Question 23

what’s extra information about the plasmids?

Answer 23

carry’s a small number of non-essential genes

Question 24

what’s extra information about the flagellum?

Answer 24

assists in cell movement

Question 25

what organelles are in a plant cell?

Answer 25

vacuole
nucleus
cell membrane
cell wall
ribosomes
chloroplast
mitochondria

Question 26

what organelles are in a animal cell?

Answer 26

cell membrane
ribosomes
mitochondria
nucleus
cytoplasm

Question 27

what organelles are in a bacteria cells?

Answer 27

cytoplasm
flagellum
cell membrane
cell wall
plasmids
molecule of circular DNA

Question 28

what are bacteria?

Answer 28

smallest living organism
unicellular
size is very small-only 1micrometre=0.0011mm
when they grow they make colonies