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Biology > revision > Flashcards

revision Flashcards

1
Q

tropism response

A

1

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2
Q

characteristics of tropism responses

A

2

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3
Q

describe types of tropism responses

A

3

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4
Q

Characteristics of nastic responses

A

4

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5
Q

descrive types of nastc responses

A

5

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6
Q 
fucnction for each phytohormone (2)
auxin
gibberellin
cytokinin
abscisic acid
ethylene
A

6

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7
Q

How ethyleen ripen fruit (4)

A

7

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8
Q

inference from coleoptile exp

A

8

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9
Q

graph of root and shoot (chap 5)

A

9

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10
Q

role fof auxin in phototropism

A

10

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11
Q

how auxin play a part in postivive phototropism

A

11

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12
Q

how auxin play a part in postivive getropism

A

12

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13
Q

uses of phytohormone in agriculture

A

13

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14
Q

compare and contrast tropism and nastic

A

unidirectional

groethdependant

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15
Q

how to overcome seed dormancy (2)

A

remove external coat

use gibberelin

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16
Q

benefits of fruits produced through auxin

A

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.

17
Q

formation of pollen grains in anther

A

1

18
Q

wind pollinated flower

A

small and light

19
Q

insect polllinated flower

A

colourful

20
Q

developmen of embryo sac

A

4

21
Q

formation of pollen tubes and male gametes

A

5

22
Q

process of double fertilisation

A

6

23
Q

importance if double fertilisation

A

7

24
Q

development of embryo

A

8

25
Q

Types of fruits

A

9

26
Q

importance od seeds for survival

A

10

27
Q

adaptations of
halophytes

probelm faced

A

11

28
Q

adaptations of hydrophytes

probelm faced

A

12

29
Q

adaptations of xerophytes

A

13

30
Q

diff in situ and ex

A

mantain species in natural

converse outside

31
Q

characteristics bacteria (4)

A

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

32
Q

characteristics bacteria (4)

A

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

33
Q

characteristics of virus

A

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

34
Q

explain nitrogen cycle

A

chap 8

35
Q

roles of microogranisSs(4)

A

1)producers

36
Q 
meaning of
habitat
species
population
community 
ecosystem
A

chap 9

37
Q

biotic components and abiotic components

A

producer
consumer
decomposers

ph value
temp
light intensity
air humidity

Biology (4 decks)

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