B2 cells Flashcards
1
Q
what are living organisms made of
A
cells
2
Q
what structures do both plant and animal cells have
A
- nucleus
- cytoplasm
- cell membrane
- ribosomes
- mitochondria
3
Q
what structures are unique to plant cells
A
- cell wall
- chloroplasts
- large permanent vacuole
4
Q
function of nucleus
A
- contains cell’s DNA (genetic code)
- controls activities of cell
- controls cell division
5
Q
function of cell wall
A
- provide shape & support to cell
- prevent cell from bursting when it absorbs water
6
Q
function of cytoplasm
A
site of many chemical reactions that take place in cell
7
Q
function of chloroplasts
A
- site of photosynthesis in cell
- may contain starch grains that act as food stores
8
Q
function of vacuoles
A
- help cell stay rigid
- some substances can be stored in them
9
Q
function of cell membrane
A
- control mvmt of substances in/out of cell
- partially permeable membrane allow some molecules to pass thru, while others cant
10
Q
function of ribosomes
A
- site of protein synthesis
11
Q
what do ribosomes look like in a cell
A
little dark dots
12
Q
function of mitochondria
A
- site of aerobic respiration
- useful energy released when glucose broken down in presence of o2
13
Q
how to see ribosomes?
A
- only electron microscope
- cannot see with light microscope
14
Q
what microscope to use when observing mitochondria
A
- can see with light microscope
- complex structure only seen under electron microscope
15
Q
what microscope to use when observing chloroplasts
A
- can see with light microscope
- complex structure only seen under electron microscope
