Plant reproduction

Question 1

Define reproduction

Answer 1

Ability of living organisms to produce offspring

Question 2

What are the two types of reproduction?

Answer 2

A-Sexual and Sexual

Question 3

State three things about Sexual reproduction in plants

Answer 3

Uses gametes, Genetically varied offspring, Advantage in changing environment or threat from pathogens

Question 4

State three things about A-Sexual reproduction in plants

Answer 4

Does not use gametes, Produces clones, Advantage in a stable environment

Question 5

State three A-Sexual methods of reproduction

Answer 5

Bulbs, Tubers, Runners

Question 6

What is an artificial method to grow plants from?

Answer 6

Cuttings

Question 7

What are the three stages of sexual reproduction in plants?

Answer 7

1. Pollination 2. Fertilisation 3. Germination

Question 8

Define Cross Pollination

Answer 8

Transfer of pollen from the anther of one flower to the stigma of another flower

Question 9

What are the male parts of the flower and what gamete is produced there? (Clue: There are two parts and only one produces the gamete)

Answer 9

-The Stamen is the male part of the flower -Anther and filament makes up the Stamen -Pollen is produced in the anther

Question 10

State the flower structure and know how to label one

Answer 10

Question 11

What features does an INSECT pollinated flower have? (Clue: Stamens, Stigma, Petals)

Answer 11

Stamen: Enclosed within flower Stigma: Enclosed within flower and sticky Petals: Large and brightly coloured

Question 12

What features does a WIND pollinated flower have? (Clue: Stamens, Stigma, Petals)

Answer 12

Stamen: Exposed outside of petals Stigma: Exposed outside of petals Petals: Small and not brightly coloured

Question 13

Give an example of wind pollinated flowers

Answer 13

Rye grass

Question 14

State the process of POLLINATION AND FERTILISATION of plants

Answer 14

1. Pollen carried to stigma 2. Pollen tube grows down style 3. Inside tube, male gamete travels to ovule 4. Male gamete enters ovule through the micropyle 5. Male and Female gametes fuse to form a zygote 6. Fertilisation occurs

Question 15

In fruit formation, what does the fertilised ovule turn into?

Answer 15

The Seed

Question 16

In fruit formation, what does the ovary turn into?

Answer 16

The Fruit

Question 17

In fruit formation, what does the ovule wall turn into?

Answer 17

The Seed coat

Question 18

In fruit formation, what does the ovary wall turn into?

Answer 18

The Fruit coat

Question 19

What does the zygote develop into and what are its two main parts? (Clue: Posh name for a root and shoot)

Answer 19

An embryonic plant with a radicle (Small root) and a plumule (a shoot)

Question 20

Describe the process of germination? (Clue: How a seed grows)

Answer 20

1. The seed needs a lot of energy quickly 2. Enzymes break down carbohydrates in food stores 3. These fuel respiration to release energy 4. Until the plant has leaves to photosynthesise

Question 21

What three things do plants need in order to germinate and what does each of them do? (Clue: WOW)

Answer 21

Warmth: Optimum temperature for enzymes Oxygen: To aerobically respire Water: To activate the enzymes