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Question 1

petals

Answer 1

attracts pollinators, protects pistil and stamen

Question 2

anther

Answer 2

produces pollen

Question 3

filament

Answer 3

holds up anther

Question 4

stigma

Answer 4

receives pollen

Question 5

style

Answer 5

holds up stigma

Question 6

ovary

Answer 6

contains ovules

Question 7

ovules

Answer 7

houses egg cells / site of egg fertilisation

Question 8

nectary

Answer 8

attractant to promote animal pollination

Question 9

sepals

Answer 9

defensive organ / protects reproductive structures

Question 10

stamen

Answer 10

produces pollen

Question 11

carpel

Answer 11

female part

Question 12

fertilisation

Answer 12

fusion of two gametes

Question 13

asexual reproduction in bacteria (method) (speed)

Answer 13

• binary fission
• very rapid process

Question 14

asexual reproduction advantages

Answer 14

-rapid
-rarity
-food storage
-same genetics passed on

Question 15

asexual reproduction disadvantages

Answer 15

-bad genetics passed on
-produces clones
-can’t adapt

Question 16

sexual reproduction advantages

Answer 16

variety

Question 17

sexual reproduction disadvantages

Answer 17

-bad genetics
-energy + time for mate
-slow

Question 18

sexual reproduction cell division by …

Answer 18

meiosis

Question 19

asexual reproduction cell division by …

Answer 19

mitosis

Question 20

role of pollen tube

Answer 20

-tube grows down style
-enters the ovary
-tube enters via micropyle
-transports male gamete

Question 21

germination

Answer 21

sequence of events that take place when the embryo in a seed develops into a plant

Question 22

cotyledon

Answer 22

• starch store

Question 23

plumule

Answer 23

embryo shoot

Question 24

radicle

Answer 24

embryo root

Question 25

testa

Answer 25

tough seed root

Question 26

micropyle

Answer 26

hole made by pollen shoot

Question 27

why does water need to enter seed

Answer 27

-activates enzymes -so it can digest stored fat

Question 28

Why do seeds need to be dispersed away from the parent plant?

Answer 28

Redues: - overcrowding - competition For: -water -light -minerals

Question 29

Plant fertilisation process (5 marks)

Answer 29

- pollen grain lands on stigma - grows pollen tube down style - enters ovary via micropyle - nucleus of pollen grain travels down pollen tube - fuses with egg inside the ovule - ovule becomes the seed

Question 30

Germination WOW (water)

Answer 30

- activate enzymes like amylase and protease - which digest stored starch and proteins (in cotyledon)

Question 31

Germination WOW (oxygen)

Answer 31

- for release of energy for germination - through respiration

Question 32

Germination WOW (warmth)

Answer 32

- for enzymes to work effectively - higher temp means more kinetic energy - greater chance of collisions between ES complexes - therefore more reactions