unicellular Vs multicellular

Question 1

What is the name of the process that makes the particles move into the cells?

Answer 1

Diffusion

Question 2

Explain how diffusion works

Answer 2

The cells spread out from high to low concentration

Question 3

Explain why tissues in multicellular organisms are supplied with nutrients using a circulatory system.

Answer 3

The circulatory system brings nutrients & oxygen to tissues & removes waste, keeping them alive and working.

Question 5

This animal kingdom has no nuclei

Answer 5

Prokaryotes

Question 6

This animal kingdom has multicellular organisms with chloroplasts

Answer 6

Plants

Question 7

This animal kingdom has unicellular organisms that CAN have chloroplasts

Answer 7

Protoctists

Question 9

This animal kingdoms cells do not contain mitochondria

Answer 9

Prokaryotes / fungi

Question 10

This animal kingdoms cells never have cell walls

Answer 10

Animals

Question 11

Viruses aren’t in a kingdom because…

Answer 11

They aren’t considered living organisms, as they lack cellular structure & can’t reproduce or carry out metabolic processes without a host.

Question 12

Yeast and bacteria are growing together inside a sealed wooden vat. They will compete for:

Answer 12

Warmth and glucose

Question 13

Finish the word equation that summarises respiration in bacteria :
glucose -> _________

Answer 13

lactic acid

Question 14

Lactic acid is a kind of anaerobic respiration. Why is it anaerobic?

Answer 14

Because it uses respiration without O² (oxygen).

Question 15

Why do bacteria reproduce faster in warmer conditions?

Answer 15

Enzymes work faster when it is warmer.

Question 16

What effect do yoghurt-making bacteria have on milk?

Answer 16

They turn into cream.

Question 17

Soft cell wall

Answer 17

Supports & protects the cell

Question 18

Flagellum/flagella

Answer 18

Moves the cell

Question 19

Cytoplasm

Answer 19

Where respiration occurs

Question 20

Chromosome

Answer 20

Contains the information to control the cell

Question 21

What resources do all bacteria need to grow well

Answer 21

Oxygen, moisture, warmth

Question 22

Bacteria use a type of anaerobic respiration that produces a sour substance called :

Answer 22

Lactic acid

Question 23

What resources do protoctists need to grow well?

Answer 23

Moisture, warmth, oxygen

Question 24

What ADDITIONAL resources do protoctists with chloroplasts need?

Answer 24

Carbon dioxide, nitrogen, light

Question 25

The three common protoctists are:

Answer 25

Amoeba, paramecium, alga

Question 26

Where does all of the energy in the food chain originally come from

Answer 26

Algae

Question 27

Aerobic respiration has

Answer 27

Oxygen

Question 28

Yeast makes bread rise by

Answer 28

fermenting sugars to produce Co2 which gets trapped in the dough, causing to expand

Question 29

Streptococcus

Answer 29

Stick together , found everywhere

Question 30

Bacteria reproduce______

Answer 30

Asexually (cloning)

Question 31

Binary fission

Answer 31

1 cell evenly divides into 2