🍄 | Unit 16 | Reproduction

Question 1

Define “pollination”

Answer 1

Pollination is the transfer of pollen from the anther of a flower to the stigma of a flower.

Question 2

Define “germination”

Answer 2

Germination the start of growth in a seed.

Question 3

Why is oxygen required for successful germination?

Answer 3

Oxygen allows energy to be released for germination.

Question 4

Why is water required for successful germination?

Answer 4

Water allows the seed to swell up, and activate enzymes in the embryo for growth to occur

Question 5

Why is warmth (suitable temperature) required for successful germination?

Answer 5

Warmth improves germination, as the reactions that take place are controlled by enzymes, so when the temperature rises, the enzyme activity increases.

Question 6

Define “asexual reproduction”

Answer 6

Asexual reproduction is the process resulting in the production of genetically identical offspring from one parent.

Question 7

Define “sexual reproduction”

Answer 7

Sexual reproduction is the process that involves the fusion of the nuclei of two gametes to form a zygote, and the production of offspring that are genetically different from each other.

Question 8

Define “fertilisation”

Answer 8

Fertilisation is the fusion of the nuclei of two gametes.

Question 9

What is the function of the prostate gland?

Answer 9

The prostate gland produces a fluid called semen, which provides the sperm with nutrients.

Question 10

What is the function of the penis?

Answer 10

The penis passes out urine from the bladder and out of the body, and allows semen to pass into the vagina of a woman during sexual intercourse.

Question 11

What is the function of the scrotum?

Answer 11

The scrotum is a sack that contains the testes outside the body, ensuring that the sperm is kept at a temperature slightly lower than the body temperature.

Question 12

What is the function of the urethra?

Answer 12

The urethra is a tube running down the centre of the penis that can carry out urine or semen; a ring of muscle in the urethra prevents the urine and semen from mixing.

Question 13

What is the function of the foreskin?

Answer 13

The foreskin protects the head of the penis.

Question 14

What is the function of the testes?

Answer 14

The testes produce sperm and testosterone.

Question 15

What is the function of the sperm duct?

Answer 15

The sperm duct allows the sperm to be mixed with the fluids from the glands before being passed into the urethra before ejaculation.

Question 16

What is the function of the vagina?

Answer 16

Leads to the inside of the woman’s body and is where the male’s penis will enter during sexual intercourse and sperm are deposited.

Question 17

What is the function of the oviduct?

Answer 17

The oviduct is the site of fertilisation, and is lined with ciliated cells to push and sweep the egg cell down it. It connects the ovary to the uterus.

Question 18

What is the function of the uterus?

Answer 18

It is a muscular bag with a soft lining where the fertilised zygote will be implanted to develop into a foetus.

Question 19

What is the function of the ovary?

Answer 19

The ovary produces ova, which will mature and develop when hormones are released.

Question 20

What is the function of the cervix?

Answer 20

The cervix is a ring of muscle that keeps the developing foetus in place during pregnancy.