things in an animal cell?
What is the Cytoplasm in a plant and animal cell?
- A gel like substance
- Most chemical reactions happen here
- Contains organelles (structures that carry out specific jobs)
Things in a plant cell?
Difference between Animal Cell and Plant Cell?
What are the three extra things in a plant cell, a
- Strengthens the cell/gives support
- Made of cellulose
- Contain chlorophyll
- photosynthesis occurs
- absorbs light energy for photosynthesis
- Filled with cell sap
- -weak solution of sugar and salts
Role of Mitochondria in plant and animal cell?
- Most of the reactions for respiration take place here.
- Respiration releases energy, cells need this to work
Role of cell membrane in plant and animal cell?
- Holds cell together
- Controls what goes in and out
Structure of a bacterial cell?
What is Chromosomal DNA in a bacterial cell?
- Controls cell's activities and replication
- floats free in the cytoplasm (not in the nucleus)
what are plasmids in a bacterial cell?
- Small loops of extra DNA
- aren't part of the chromosone
- contain genes for things like drug resistance
-can be passed between bacteria
What is the role of the flagellum?
- Long hair-like structure
- rotates to make the bacterium move
How do you work out magnification?
Magnicfication= Length of image/ length of specimen
What is the structure of DNA?
- Double helix: two strands coiled together
- Paired bases
- Chemicals=bases: hold the strands together
What are paired bases?
There are 4 different bases that pair up:
Adenine and Thymine: AT
Cytosine and Guanine: CG
The base pairs are joined by weak hydrogen bonds
What is a gene?
- A section of DNA
- Sequence of bases in a gene code for a specific potein/ carries an instruction
Function of each part of a microscope?