water Flashcards
(96 cards)
1
Q
Properties of Water
A
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2
Q
How much of a cells content in water?
A
80%
3
Q
What is the structure of water?
A
4
Q
What are the properties of water?
A
5
Q
How is water being an important metabolite important?
A
6
Q
How is water being a good solvent important?
A
7
Q
How is water having a relatively large latent heat of vaporasation important?
A
8
Q
How is water having a relatively high heat capacity important?
A
9
Q
How is water having a strong cohesion between molecules important?
A
10
Q
Plant structure
A
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11
Q
What is the function of the upper epidermis?
A
12
Q
What is the function of
A
13
Q
What is the function of
A
14
Q
What is the function of
A
15
Q
What is the function of
A
16
Q
What is the function of
A
17
Q
What is the function of
A
18
Q
Gas exchange in plants
A
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19
Q
What do plants need CO2 for?
A
20
Q
How does the balance of photosynthesis to respiration change?
A
21
Q
What layer are the gases exchanged in the leaf?
A
22
Q
How is the spongy mesophyll adapted for gas exchange?
A
23
Q
Where do gases move in and out of in the leaf?
A
24
Q
What does the stomata do?
A
25
How do plants in dry enviroments prevent excessive water loss?
26
What to guard cells do?
27
Water transport in plants
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28
What do plants need water for?
29
How is water absorbed by the plant?
30
How are mineral ions absorbed by plants?
31
Why do plants require nitrates?
32
What is the structure of the xylem?
33
What is the function of the xylem?
34
How does the xylem having a hollow lumen benefit the plant?
35
How does the xylem having a walls made of lignin benefit the plant?
36
How does the xylem having a waterproof lignin benefit the plant?
37
What is step one in the Cohesion - tension theory?
38
What is step two in the Cohesion - tension theory?
39
What is step three in the Cohesion - tension theory?
40
What is step four in the Cohesion - tension theory?
41
What evidence is there to support the cohesion theory?
42
Investigating transpiration practical
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43
How does water movement increase?
44
Where does water evaporate from?
45
What factors affect the transpiration rate?
46
How does light intensity affect transpiration rate?
47
How does temperature affect transpiration rate?
48
How does humidity affect transpiration rate?
49
How does air movement affect transpiration rate?
50
What does a potometer measure?
51
How should the shoot be cut?
52
How can you make the apparatus water tight?
53
Why do the leaves need to be dry and acclimatised?
54
Why is only an estimate gained?
55
What is step one for measuring transpiration?
56
What is step two for measuring transpiration?
57
What is step three for measuring transpiration?
58
Adaptations in xerophytes
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59
What are xerophytes?
60
How does the adaptation of having small leaf surface area help xerophytes?
61
How does the adaptation of having sunken stomata help xerophytes?
62
How does the adaptation of having stomatal hairs (trichores) help xerophytes?
63
How does the adaptation of having rolled leaves help xerophytes?
64
How does the adaptation of having extensive root systems help xerophytes?
65
How does the adaptation of having a reduced number of stomata help xerophytes?
66
How does the adaptation of having a thicker, waxy cuticle help xerophytes?
67
How can you investigate the stomatal density?
68
Mass flow hypothesis
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69
What is translocation?
70
Where does translocation occur?
71
What is the structure of the phloem?
72
What are sources?
73
What are sinks?
74
What examples are there of sinks?
75
Where are sinks found in a plant?
76
Why is translocation an active process?
77
What does the mass flow hypothesis rely on?
78
What is step one in the mass flow hypothesis?
79
What is step two in the mass flow hypothesis?
80
What is step three in the mass flow hypothesis?
81
How does pumping H+ ions out of the companion cell affect the sucrose concentration?
82
What evidence is there around the sieve tubes that supports the mass flow hypothesis?
83
What evidence is there around the sucrose concentration that supports the mass flow hypothesis?
84
What evidence is there around the phloem that supports the mass flow hypothesis?
85
What evidence is there around ATP that supports the mass flow hypothesis?
86
What evidence is there around the rings of bark that supports the mass flow hypothesis?
87
What evidence is there against the mass flow hypothesis?
88
Mass flow experiment
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89
What are the two types of experiment that can be conducted to get evidence for the mass flow hypothesis?
90
What is the ringing experiment?
91
What does the ringing experiment show?
92
What benefits are there of ringing?
93
What is the tracing experiment?
94
What does tracing rely on?
95
What is correlation for data?
96
What do you need to be careful of when interperting data?
