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National 5 Biology > Unti 2.3: Reproduction > Flashcards

Unti 2.3: Reproduction Flashcards

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1
Q

What is a diploid cell?

A

A cell containing 2 matching sets of chromosomes

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2
Q

Give examples of diploid cells.

A

Liver
Skin
Muscle

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3
Q

What is a haploid cell?

A

A cell thats contains only 1 set of chromosomes

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4
Q

Give examples of haploid cells.

A

Egg

Sperm

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5
Q

What is the male gamete?

A

Sperm

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6
Q

What is the female gamete?

A

Egg

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7
Q

Define gamete.

A

The sex cells

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8
Q

Where is sperm produced?

A

The testies

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9
Q

What is the function of sperm?

A

To swim towards and fertilise the egg

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10
Q

How is the sperm specialised?

A

It has a tail to swim
It contains many mitochondria to provide energy from respiration
Acrosome to release enzyme to penetrate egg

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11
Q

Where is the female gamete produced?

A

The ovaries

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12
Q

What is the function of the female egg?

A

To get fertilised and develop into the new off spring

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13
Q

How is the egg specialised?

A

It has a jelly coat to protect the egg

It has a large quantity of cytoplasm to supply nutrients to grow a baby

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14
Q

Define fertilisation.

A

The fusion of the male sperm nucleus and female egg nucleus in the oviduct to form a zygote

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15
Q

What is a zygote?

A

A fertilised egg

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16
Q

What does a diploid zygote divide to form?

A

An embryo

17
Q

Where does fertilisation take place?

A

In the oviduct

18
Q

What is the male gamete in plants?

A

Pollen grain

19
Q

Where is the male gamete produced in plants?

A

In the anther

20
Q

What is the female gamete in plants?

A

Ovule

21
Q

Where is the female gamete produced in plants?

A

In the ovary

22
Q

What does a fertilised ovule divide into to form?

A

A seed

23
Q

Explain how fertilisation occurs in plants.

A

When a pollen grain lands on the stigma, a pollen tube grows down to the ovary. The pollen grain nucleus then travels down to the ovary where fertilisation occurs. The fertilised ovule will then divide to form a seed.

National 5 Biology (15 decks)

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