the model of cells Flashcards
1
Q
what type of cells are there
A
animal cell and plant cell
2
Q
what is a cell
A
the basic unit of life
3
Q
what parts do plant cells have
A
- cytoplasm
- cell membrane
- nucleus
- vacuole
- cell wall
- chloroplast(leaf cell)
4
Q
what parts do animal cells have
A
- cytoplasm
- cell membrane
- nucleus
- vacuole
5
Q
what is a cytoplasm and what are its functions
A
- jelly-like substance that fills a cell
- site where most chemical reaction takes place
6
Q
what is a cell membrane and what are its functions
A
- Thin outer layer that surrounds a cell
- Selectively (partially) permeable
- Controls movement of substances into and out of cell
7
Q
what is a nucleus and what are its functions
A
- Contains DNA
- Will cause the cell to die if removed.
- it is the control centre of the cell
- Centre that controls all activities that occur within a cell
8
Q
what is a vacuole and what are its functions
A
- Space within a cell
- Stores liquids, food and waste materials
9
Q
what is a cell wall and what are its functions
A
- Tough outer covering surrounding the cell membrane
- fully permeable: allows substances to move through freely
- Protect and supports the entire cell
- Rigid and gives the cell a regular shape
10
Q
what is a chloroplast and what are its functions
A
- Contains chlorophyll to trap light energy (food factory)
- Allows photosynthesis takes place
11
Q
do all plant cells have chloroplast
A
no
12
Q
do root cells contain chloroplast
A
no
13
Q
do leaf cells contain chloroplast
A
yes
14
Q
what are some examples of uni-cellular organisms
A
- bacteria
- amoeba
- euglena
- paramecium
15
Q
what is a unicellular organism
A
- Consists of a single cell
- All life processes takes place within the unicellular organism
