Sexual Repro N4

Question 1

How many parents does sexual reproduction require?

Answer 1

2

Question 2

What needs to join for fertilisation?

Answer 2

Sex cells

Question 3

What are sex cells called?

Answer 3

Gametes

Question 4

What gametes are male?

Answer 4

Sperm

Question 5

Where is the nucleus in sperm?

Answer 5

In the head

Question 6

Where is the DNA in the sperm

Answer 6

Nucleus, in the head

Question 7

How often do the ovaries produce an egg

Answer 7

Every 28 days

Question 8

Are offsprings all the same?

Answer 8

No

Question 9

What do the ovaries do?

Answer 9

Produce eggs

Question 10

What is the oviduct for?

Answer 10

For the embryo to plant in

Question 11

What happens in the vagina?

Answer 11

Sperm are deposited into the female

Question 12

Whats the sperm duct?

Answer 12

Tube connecting the testes to the urethra

Question 13

What happens in the urethra?

Answer 13

Sperm exit the body through this tube

Question 14

Whats the penis for?

Answer 14

To deposit sperm into the female

Question 15

What happens in the testes?

Answer 15

Sperm are made

Question 16

What is fertilisation?

Answer 16

The fusion of the two male and female gametes

Question 17

How are non identical twins formed?

Answer 17

2 egg cells are fertilised, each egg by a different sperm

Question 18

How are identical twins formed?

Answer 18

1 egg fertilised by one sperm then divides into 2 halves

Question 19

Where does sexual reproduction happens for fish?

Answer 19

Outside the body (externally)

Question 20

Do frogs use external fertilisation?

Answer 20

Yes

Question 21

How long do lambs get milk from their mum for?

Answer 21

Around 6 months

Question 22

How many parents are involved in asexual reproduction?

Answer 22

1

Question 23

Are sex cells produced in asexual reproduction?

Answer 23

No

Question 24

Are offsprings identical in asexual reproduction?

Answer 24

Yes

Question 25

What can produce asexually?

Answer 25

Flowers & sea anenemys

Question 26

How can a wind pollenated plant be identified?

Answer 26

Pollen grains are light & petals are dull in colour

Question 27

How an insect pollenated plant be identified?

Answer 27

Bright petals, sticky stigma and nectar to attract insects

Question 28

How does pollen travel?

Answer 28

By the wind or insects

Question 29

Where does pollen travel from and to?

Answer 29

The anther to the stigma of another plant

Question 30

What is selective breeding?

Answer 30

Breeding the best plants with favoured traits

Question 31

How can selective breeding benefit us?

Answer 31

Can make plants healthier for us

Question 32

What are some methods of selective breeding?

Answer 32

Cuttings, layering and clonings

Question 33

How does cutting work?

Answer 33

Cutting forms roots in water before being planted into moist soil

Question 34

What do plants need to grow?

Answer 34

Water & oxygen

Question 35

Can asexual plants adapt to different environments?

Answer 35

No

Question 36

Do sexual reproductive things always have good features?

Answer 36

No

Question 37

Where is the information to build an organism stored in a cell?

Answer 37

Nucleus

Question 38

What does variation mean?

Answer 38

Difference between individuals of the same species

Question 39

Children inherit character from….?

Answer 39

Their parents

Question 40

Dominant alleles overrule…?

Answer 40

Recessive alleles

Question 41

What is a hereditary disease?

Answer 41

A disease you inherit that you cannot catch

Question 42

How do we gain water?

Answer 42

Drinking, eating and chemical reactions

Question 43

How can we lose liquids?

Answer 43

Exhaling, urination, sweating, crying

Question 44

What happens in kidneys failure

Answer 44

The body’s internal water balance will become disturbed

Question 45

Kidney transplant is when…?

Answer 45

Replacement kidney is transplanted

Question 46

What are pros of kidney transplant?

Answer 46

Person can lead a normal life, no machines needed

Question 47

What are the pros of dialysis?

Answer 47

Purifies blood, cannot be rejected

Question 48

What are the cons of kidney transplant?

Answer 48

Might reject, healthy kidneys are low in supply

Question 49

What are the cons of dialysis?

Answer 49

Not portable, expensive, patient cannot live freely, takes a long time to

Question 50

What does homeostasis do?

Answer 50

Keep internal temperature steady

Question 51

External factors vary according to?

Answer 51

Weather, food and water intake

Question 52

Internal factors vary according to?

Answer 52

Temperature and glucose levels

Question 53

How can our blood sugar levels increase?

Answer 53

Drinking and eating

Question 54

What happens when our blood sugar levels increase?

Answer 54

Body releases insulin

Question 55

What happens when our blood sugar levels decrease?

Answer 55

Pancreas releases glucagon

Question 56

How can blood sugar levels decrease?

Answer 56

By doing exercise and respiring