B3 Flashcards

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

What are enzymes?

A

Catalysts that are produced by living things, has an optimum temperature in which they work best in but if it gets to hot then the enzyme denatures

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

What are the three things that affect the rate of reaction?

A

1.Temperature
2.Concentration
3. pH

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

What is photosynthesis?

A
  • The process of making glucose using water sunlight and carbon dioxide in producers to feed itsself
  • It can be affected by: co2 concentration, light intensity and temperature
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the equation for photosynthesis?

A

Carbon dioxide + water ========> glucose + oxygen
6CO2 + 6H2O =>LIGHT AND CHLOROPHYLL==>C6H1206+602

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

Where does photosynthesis take place?

A

In the chloroplasts. Endothermic reaction.

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

What happens in the light dependant stage of photosynthesis?

A

Water molecules split into hydrogen and oxygen(released into air)

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

What happens in the light independant stage of photosythesis?

A

CO2 from the air chemically combines with hydrogen to make glucose.

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

What is diffusion?

A

The movement of particles from an area of high concentration to low concentration.

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

What is osmosis?

A

The movement of water particles from an area of high concentration to low concentration

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

What is active transport?

A

The movement of particles from an area of low concentration to high using energy transferred during respiration

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

What is Phloem?

A

Transports food substances. Sieve tube elements, no nucleus, has a companion cell. MOVEMENT OF FOOD SUBSTANCES IS REFFERED TO AS TRANSLOCATION.
Sugars enter through active transport, then is pushed around by water , which enters the phloem by osmosis.

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

What is stomata?

A

Allows for CO2 and oxygen to diffuse out of a leaf.

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

What is transpiration

A

Loss of water in a plant.

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

What are the different stages of a food chain and how does each work in terms of energy?

A

Producers, primary consumers, secondary and tertiary
The pyramids of bio mass work in the way the producers recieve the most energy and the tertiary recieves the least

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

What is decomposition?

A

When microorganisms help in the recycling of materials.
It contributes to global warming.

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

What is bioaccumulation?

A

The increase over time of a substance in a food change

17
Q

What is random sampling?

A

Using a quadrat involves the placing of quadrats at random coordinates

18
Q

What is symbiosis?

A

Interaction between two organisms in a mutually beneficial way

19
Q

What is the xylem used for?

A

Transports wataer and minerals upwards from roots

20
Q

What is transpiration?

A

Evaporation of water from the aerial parts of a plant

21
Q

What is translocation?

A

the transporting of sugars around the body

22
Q

What are abiotic factors and biotic factors?

A
  • Abiotic factors- Non livinf parts of the environment that can affect organsims
  • Biotic factors-Any living factor that affects another organism or shapes the ecostem in some wayqqq
23
Q

What is eutrophication?

A

The process by which a body of water becomes enriched with nutrients, leading to excessive growth of algae and other aquatic plants