Ecosystem processes Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

producer

A

organisms that make their own food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

consumer

A

organisms that get energy from eating other organisms.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

word equation for photosynthesis

A

carbon dioxide + water = glucose + oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

word equation for aerobic respiration

A

oxygen + glucose = water + Carbondioxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

the stuff that makes leaves green

A

chlorophyll

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

the source of energy for plants

A

the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

the reason why leaves have such large surface area is…

A

to absorb as much light as possible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

cuticle

A

protects plants against drought, extreme temperatures, UV radiation, chemical attack and more

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

upper epidermis

A

mainly involved in water conservation by eliminating excess sunlight.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

lower epidermis

A

mainly involved in gas exchange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

palisade mesophyll

A

where most of the photosynthesis occurs in the leaf.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

spongy mesophyll

A

facilitate the exchange of gases essential to the process of photosynthesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

guard cells

A

regulate CO2 influx from the atmosphere into the leaves for photosynthic fixation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Stoma(ta)

A

the hole on the bottom of the leaf for carbon dioxide to diffuse in and oxygen to diffuse out.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

the place that plants store their excess glucose

A

starch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

the place that humans store their excess glucose

A

fat, glucogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Phosphates

A

contains phosphorus, and is important for healthy roots

18
Q

Nitrates

A

contains nitrogen, and is important for the healthy growth of a plant

19
Q

potassium

A

contains potassium, and is important for healthy leaves and flowers

20
Q

magnesium

A

contains magnesium, and is important for making chlorophyll

21
Q

some examples of natural fertiliser

A

banana peels, dung, compost

22
Q

some examples of artificial fertiliser

A

wood ash, bone meal

23
Q

what does NPK stand for

A

nitrogen phosphorus potassium

24
Q

chemosynthesis

A
  1. uses chemicals as their source of energy
  2. often uses carbon dioxide as a reactant
  3. has glucose as a product
25
Q

where do chemosynthetic bacteria (like sulfur bacteria) live?

A

at the bottom of the sea near volcanic vents.

26
Q

mutualistic relationship

A

the biological relationship between organisms, where both organisms benefit eachother

27
Q

The chemical reaction that transfers energy from glucose in humans

A

aerobic respiration

28
Q

The place where cellular respiration occurs

A

mitochondria

29
Q

The type of reaction that aerobic respiration is

A

exothermic (gives out heat to the surroudings)

30
Q

True or false: respiration = breathing

A

False

31
Q

name both reactions for anaerobic respiration

A
32
Q

describe the relationship between the concentration of glucose and the rate of fermentation

A

higher concentration of glucose = higher rate of fermentation

33
Q

Fermentation gives out CO2. describe how this is useful in daily life.

A

It helps the dough in pizza rise

34
Q

what is a food chain

A

a diagram that shows what an organism eats. It shows the transfer of energy between organisms.

35
Q

the amount of energy transferred when an organism eats another one:

A

10%

36
Q

who is the producer in a food chain?

A

the plant that supplies organisms with food

37
Q

who is the primary consumer in a food chain?

A

the 2nd one in the chain. This one is a herbivore.

38
Q

who is the secondary consumer in a food chain?

A

3rd one in a chain. This one is a carnivore / omnivore

39
Q

apex predator

A

the final boss of the food chain.

40
Q

food web

A

a set of linked food chains

41
Q

what would happen to a food chain when the producer vanished?

A

there will be a domino effect and the rest of the food chain will die.

42
Q

bioaccumulation

A

some insecticides are washed into rivers and end up in the sea. fish absorb them. Because seals eat a lot of fish, the levels of the chemicals builds up. this is called bioaccumulation