Multicellular Organisms

Question 1

How many parents are there in sexual reproduction

Answer 1

Two

Question 2

How many parents are there in asexual reproduction

Answer 2

One

Question 3

Difference between sperm and an egg

Answer 3

The sperm is the male gamete and the egg is the females

Question 4

Stages of fertilisation

Answer 4

Egg is released
Egg travels along oviduct
Sperm and egg meet
Fertilisation occurs

Question 5

If a plant has light dusty pollen is it pollinated by wind or insects

Answer 5

Wind

Question 6

If a plant has brightly coloured petals is it pollinated by wind or insects

Answer 6

Insects

Question 7

Three types of natural reproduction in plants

Answer 7

Tubers, runners and budding

Question 8

What does dominant genes mean

Answer 8

Whatever it is paired with it will always show up

Question 9

What does recessive genes mean

Answer 9

Needs two pairs to show up

Question 10

If brown eyes are dominant and there is Bb and bb what are they chances of brown eyes

Answer 10

2 in 4 will have brown eyes
Or
1 in 2 will have brown eyes

Question 11

If green leaves are dominant and there is Gg and GG what are they chances of Green leaves

Answer 11

All will be Green leaves

Question 12

What are methods of water loss

Answer 12

Sweating, breathing and urine

Question 13

What is a method of water gain

Answer 13

Drinking

Question 14

What three body parts help with controlling water balance

Answer 14

Kidneys, ureta and bladder

Question 15

What do kidneys do

Answer 15

Filter the blood and reabsorb the useful stuff

Question 16

What is the use for a dialysis machine

Answer 16

It is for people who don’t have working kidneys it acts as an outside the body one

Question 17

What is a gene

Answer 17

A section of DNA

Question 18

What does DNA stand for

Answer 18

Deoxyribonucleic acid

Question 19

What is the phenotype

Answer 19

The physical thing you can see e.g blue eyes

Question 20

What does genotype mean

Answer 20

The makeup of the feature e.g Bb or bb or BB

Question 21

What are runners

Answer 21

A thin stem that grows horizontally along the ground and grows root creating an identical copy of the parent plant

Question 22

What are tubers

Answer 22

The tip of an underground stem becomes swollen with stored food to form a tuber. Buds develop into new shoots, becoming independent from the parent organism

Question 23

How do you work out a percentage

Answer 23

Change
———— X 100 = % change
Starting
Number

Question 24

What are the 5 plant reproduction parts

Answer 24

Petal
Stigma
Anther
Sepal
Ovary

Question 25

What does the petal do

Answer 25

Attracts insects

Question 26

What do anthers do

Answer 26

Protects the pollen

Question 27

What do the sepals do

Answer 27

Protects the flower bud

Question 28

What do the ovary’s do in plants

Answer 28

Produced ovules

Question 29

What does the stigma do

Answer 29

Transfers pollen to ovules

Question 30

What is an example of a plant that uses runners

Answer 30

Spider plant

Question 31

What is a plant that uses bulbs

Answer 31

Onion

Question 32

What is a plant that uses tubers

Answer 32

Sweet potato

Question 33

How much water are you meant to drink a day

Answer 33

1.5 litres

Question 34

What is kidney failure

Answer 34

The body’s internal water balance becomes disturbed

Question 35

What controls you glucose balance

Answer 35

Liver and pancreas

Question 36

What increases you glucose levels

Answer 36

Consuming food and drink

Question 37

What does our body do when our glucose levels are too high

Answer 37

The pancreas releases insulin which causes the blood sugars to be stored in the liver

Question 38

What decreases our glucose levels

Answer 38

Doing exercise

Question 39

What does our body when we are low on blood sugar levels

Answer 39

The pancreas releases glucagon which tells the liver to release some sugars stored