revision

Question 1

tropism response

Answer 1

1

Question 2

characteristics of tropism responses

Answer 2

2

Question 3

describe types of tropism responses

Answer 3

3

Question 4

Characteristics of nastic responses

Answer 4

4

Question 5

descrive types of nastc responses

Answer 5

5

Question 6

fucnction for each phytohormone (2)
auxin
gibberellin
cytokinin
abscisic acid
ethylene

Answer 6

6

Question 7

How ethyleen ripen fruit (4)

Answer 7

7

Question 8

inference from coleoptile exp

Answer 8

8

Question 9

graph of root and shoot (chap 5)

Answer 9

9

Question 10

role fof auxin in phototropism

Answer 10

10

Question 11

how auxin play a part in postivive phototropism

Answer 11

11

Question 12

how auxin play a part in postivive getropism

Answer 12

12

Question 13

uses of phytohormone in agriculture

Answer 13

13

Question 14

compare and contrast tropism and nastic

Answer 14

unidirectional

groethdependant

Question 15

how to overcome seed dormancy (2)

Answer 15

remove external coat

use gibberelin

Question 16

benefits of fruits produced through auxin

Answer 16

The seedless fruit produced is of higher quality and is larger.
• The fruit is safer to consume as it is not pollinated by insects and thus does not require the use of
pesticides.

Question 17

formation of pollen grains in anther

Answer 17

1

Question 18

wind pollinated flower

Answer 18

small and light

Question 19

insect polllinated flower

Answer 19

colourful

Question 20

developmen of embryo sac

Answer 20

4

Question 21

formation of pollen tubes and male gametes

Answer 21

5

Question 22

process of double fertilisation

Answer 22

6

Question 23

importance if double fertilisation

Answer 23

7

Question 24

development of embryo

Answer 24

8

Question 25

Types of fruits

Answer 25

9

Question 26

importance od seeds for survival

Answer 26

10

Question 27

adaptations of halophytes probelm faced

Answer 27

11

Question 28

adaptations of hydrophytes probelm faced

Answer 28

12

Question 29

adaptations of xerophytes

Answer 29

13

Question 30

diff in situ and ex

Answer 30

mantain species in natural | converse outside

Question 31

characteristics bacteria (4)

Answer 31

1) prokaryote no nucles 2) plasmids small circular dna molecules 3) flagellum for movement 4) asexual (binaryfisssion)

Question 32

characteristics bacteria (4)

Answer 32

1) prokaryote no nucles 2) plasmids small circular dna molecules 3) flagellum for movement 4) asexual (binaryfisssion)

Question 33

characteristics of virus

Answer 33

jas caspids to protect nuclei acid non living-do not carry out life processes outside cell reproduce-injecting no cytoplasm nuclues

Question 34

explain nitrogen cycle

Answer 34

chap 8

Question 35

roles of microogranisSs(4)

Answer 35

1)producers

Question 36

``` meaning of habitat species population community ecosystem ```

Answer 36

chap 9

Question 37

biotic components and abiotic components

Answer 37

producer consumer decomposers ph value temp light intensity air humidity