Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Science > B1 Biology > Flashcards

B1 Biology Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What are the 3 ways substances can move in and out of cells

A

Diffusion
Osmosis
Active transport

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

What is diffusion

A

Movement of ANY particle from HIGH to LOW concentration

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

What can speed up the rate of diffusion and WHY?

A

Temperature because the particles move faster

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

What is osmosis

A

The movement of WATER
From area of HIGH water concentration to LOW
Across a CELL MEMBRANE

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

What is active transport

A

Movement of ANY particle from LOW to high (the opposite way)

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

What do plant cells have that animal cells do not

A

Cell Wall / Chloroplast / Vacuole

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

What is the function of:

Nucleus -

A

Controls cell / DNA

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

What is the function of
Mitochondria

A

Release Energy / Respiration

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

What is the function of

Ribosomes

A

Make Protein

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

What is the function of

Chloroplasts

A

Contain Chlorophyll /Photosynthesis /
Traps the sunlight

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

What is the function of
Cell Wall

A

Supports the cell / Made from Cellulose

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

What is the function of
Cell membrane

A

Control what enters and leaves the cell

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

What is the function of
Vacuole

A

Store of water / Cell Sap

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

Give an example of a EUKARYOTIC
cell

A

Animal / Plant cell

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

Give an example of a
PROKARYOTIC cell

A

Bacteria Cell

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

What is missing in a prokaryotic cell?

A

A nucleus (they have spaghetti like DNA) or rings of DNA called plasmids

17
Q

What is a plasmid?

A

A ring of DNA found in a bacteria

18
Q

A bacterial cell is 0.003mm long. A magnified image of the cell is 18mm long.
What is the magnification

A

18÷0.003

19
Q

How do we work out mass change

A

End mass - starting mass

20
Q

How do we work out % mass change?

A

Mass change ÷ starting mass x 100

21
Q

Why is to mass change better than just mass change?

A

Because it does not matter what the starting size of the potato is

22
Q

What has happened if the plant cells (e.g. potato) get heavier?

A

Water has moved in by osmosis

23
Q

Osmosis required practical

Equipment -

Dependent V -

Control V -

A

Equipment- Test tube/Balances/Salt Solution
Dependent V- Mass of potato because it does not change
Control V-Type of potato/temperature

Science (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions