Cell Structure Flashcards
1
Q
Plant and animal cells are both ……….. cells
A
Eukaryotes
2
Q
What is the point of the nucleus
A
- The nucleus contains the cell’s genetic material (in the form of DNA)
- controls the cell’s activities
3
Q
What are ribosomes
A
- The ribosomes are where proteins are made.
- We sometimes call them the site of protein synthesis.
4
Q
What is ‘cytoplasm’?
A
- A jelly-like material containing nutrients and salts
- where most chemical reactions take place
- it contains enzymes that control these chemical reactions
5
Q
What is the role of the mitochondria?
A
- Mitochondria are the site of aerobic respiration
- so they release energy for the cell to use
6
Q
What can be found in a plant cell but not an animal cell
A
- cell wall
- vacuole
- chloroplasts
7
Q
What are chloroplasts
A
- Chloroplasts carry out the process of photosynthesis, which involves using light energy from the sun to make glucose.
- The green pigment that absorbs the light energy is called chlorophyll. This is what makes plants green.
8
Q
What is the vacuole
A
- The vacuole is a large sac in the middle of the cell that contains a weak solution of sugars and salts (cell sap).
- It helps maintain the structure and shape of the cell.
9
Q
The cell wall is made up of…
A
cellulose: This makes it strong and allows it to maintain the shape of the cell.
10
Q
Bacteria are classed as
A
A prokaryotic organisms
11
Q
Are bacteria cells smaller or larger than animal cells
A
Smaller
12
Q
Bacteria are multicellular or unicellular?
A
Unicellular (only consist of a single cell).
13
Q
Do bacteria cells have a nucleus
A
- They don’t have a ‘true’ nucleus
- instead they have a singular circular strand of DNA
- it floats freely in the cytoplasm
14
Q
What are eukaryotic cells
A
- more complex than prokaryotic cells
- are animal and plant cells
- eukaryotes are organisms that are made up of eukaryotic cells
15
Q
What are prokaryotic cells
A
- smaller and simpler than eukaryotic
- e.g. bacteria
- a prokaryote is a prokaryotic cell (single-celled organism)
16
Q
What are plasmids
A
Small rings of DNA
17
Q
Label
A
18
Q
Label
A
19
Q
Label
A
