cell biology

Question 1

1) organisms composed of only one cell are called ____
2) organisms composed of more than 1 cell are called ____

Answer 1

1) unicellular
2) multicellular

Question 2

cells contain structures in them called ___

Answer 2

organelles

Question 3

5 parts of animal cell

Answer 3

cell membrane
mitochondrion
cytoplasm
nucleus
ribosomes

Question 4

8 parts of plant cell

Answer 4

cell wall
cell membrane
nucleus
mitochondrion
ribosomes
vacuole
cytoplasm
chloroplast
PRACTICE LABELLING THEM

Question 5

how are fungal cells different to plant and animal

Answer 5

different cell wall structure

Question 6

how are bacterial cells different to plant and animal

Answer 6

1) DNA isn’t enclosed in a nucleus
2) they have ribosomes and plasmids, but other organelles are absent
3) they have a different cell wall structure

Question 7

cell membrane function

Answer 7

controls the passage of molecules that enter and leave the cell

Question 8

cell wall function

Answer 8

provides and maintains the shape of the cell

Question 9

what is cell wall made of in plant cells

Answer 9

cellulose

Question 10

chloroplast function

Answer 10

site of photosynthesis

Question 11

mitochondrion function

Answer 11

site of aerobic respiration

Question 12

nucleus function

Answer 12

controls the activities of the cell

Question 13

plasmid function

Answer 13

consist of extra chromosomal material

Question 14

ribosome function

Answer 14

site of protein synthesis

Question 15

vacuole function

Answer 15

contains cell sap and provides plant and yeast cells with turgid shape

Question 16

cytoplasm function

Answer 16

site of chemical reactions

Question 17

1) to change cc to mm multiple by __
2) to change mm to micrometre multiply by ___

Answer 17

1) 10
2) 1000

Question 18

1) to change mm to cm divide by ___
2) to change micrometres to mm divide by __

Answer 18

1) 10
2) 100

Question 19

to convert mm in micrometres…

Answer 19

multiply by 1000

Question 20

which is bigger
1) 1cm
2) 1mm
3) 1 micrometre

Answer 20

1 then 2 then 3

Question 21

to convert micrometres to mm

Answer 21

divide by 1000

Question 22

how to estimate cell size

Answer 22

calculate length of one cell and breadth

Question 23

how to calculate total magnification

Answer 23

eyepiece lens magnification x objective lens magnification

Question 24

what do stains do
example of one

Answer 24

they make structures more visible under the microscope
example - iodine solution