Biology Flashcards

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

What are plants?

A

Producers

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

What is the word equation to show photosynthesis?

A

Water+Carbon dioxide+sunlight 🔜 oxygen+glucose

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

Where does photosynthesis happen?

A

In the chlorophyll of the chloroplasts in a plant cell

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

How does water and carbon dioxide get into a plant?

A

They enter through the stomata on the underside of the leaf

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

How does oxygen leave a plant?

A

Through the stomata

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

Where does respiration happen?

A

In all cells or living things, all the time

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

What does respiration make?

A

Energy

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

How do plants make their own food?

A

By photosynthesis

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

What is the word equation to show respiration?

A

Glucose + oxygen 🔜 carbon dioxide + water

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

Where does gas exchange happen?

A

In the lungs

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

What happens to the ribs when you breathe in?

A

The Ribcage moves upwards and outwards

The diaphragm moves downwards

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

What happens to the ribs and lungs when you breathe out?

A

The Ribcage moves downwards and inwards

The diaphragm moves upwards

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

What two types of variation are there?

A

Continuous and discontinuous

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

What does continuous variation mean?

A

A range of values across the population e.g. Height

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

What does discontinuous variation mean?

A

Groups or categories e.g. Blood group

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

What does continuous variation within populations usually show?

A

A bell-shaped curve called normal distribution

17
Q

How does evolution occur?

A

By a process called natural selection

18
Q

What does natural selection require?

A

Variation, overproduction, survival of the fittest and many generations

19
Q

Where do the advantageous genes get passed on to?

A

The next generation

20
Q

Why do organisms have adaptations?

A

To ensure survival in particular environments

21
Q

What is variation?

A

Differences in characteristics

22
Q

What genetic?

A

Characteristics you get from your mum and dad

23
Q

What is environmental variation?

A

Things you get from the world e.g education and tattoos

24
Q

What 3 different things cause variation?

A

Genetic (eye colour) environmental (education) and both (weight)