Brainscape's Knowledge GenomeTM

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


See full index

🥼🧪 > biology big to small > Flashcards

biology big to small Flashcards

1
Q

what is a cell

A

the smallest functional unit in a living organism

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

function of a nucleus

A

controls the activity of the cell - making proteins

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

nucleus contains?

A

chromosomes - strands of dna which carry genes - each gene codes for a protein

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

function of cell membrane

A

boundary between the cytoplasm and surrounding cells - controls what comes in and out of the cell = selectively permeable

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

function of cytoplasm

A

jelly like liquid where chemical reactions occur

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

function of mitochondria

A

carries out aerobic respiration - producing ATP

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

function of ribosomes

A

synthesise proteins from amino acids

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

function of chloroplasts

A

absorbs light energy to make food by photosynthesis

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

what do chloroplasts contain

A

chlorophyll

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

what cell does not have a nucleus

A

red blood cells

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

what are some organelles in a cell

A

mitochondria, chloroplasts, ribosomes & nucleus

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

what is the largest organelle in a cell

A

nucleus

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

which organelle is found in the cytoplasm of all living cells

A

mitochondria (needed for respiration)

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

what do all cells start as

A

stem cells

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

how do stem cells become specialised cells

A

they develop new features

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

what is the function of red blood cells

A

transport oxygen in the blood

17
Q

features of red blood cells

A

• contain haemoglobin (protein)
• haemoglobin binds to & transports oxygen
• no nucleus so more space for haemoglobin
• biconcave disc shape ( larger surface area - more oxygen can enter & leave )

18
Q

function of sperm cell

A

transport male genetic material to the egg cell

19
Q

features of a sperm cell

A

• flagellum helps to swim
• many mitochondria - energy for swimming
• acrosome - digests jelly layer surrounding egg cell

20
Q

leaf cell is called

A

palisade

21
Q

function of palisade

A

carries out photosynthesis

22
Q

features of palisade cell

A

• chloroplasts - trap light energy
• tall and thin cells
• pack tightly to allow better light absorption

23
Q

what are biological molecules

A

carbohydrates, proteins and lipids (fats)

24
Q

what are carbohydrates made of

A

carbon, hydrogen & oxygen

25
Q

what are lipids (fats) made of

A

carbon, hydrogen & oxygen

26
Q

what are proteins made of

A

carbon, hydrogen, oxygen & nitrogen

27
Q

what are the functions of lipids

A

• thermal insulation
• electrical insulation - around nerve cells
• energy storage
• buoyancy in marine animals

28
Q

what are the functions of proteins

A

• control chemical reactions - enzymes
• transport eg haemoglobin
• combat disease eg antibodies
• messenger molecules - hormones

🥼🧪 (14 decks)

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