cell structure
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24 Terms
What is a prokaryotic cell and give me an example
prokaryotic cells are single celled organisms e.g bacteria
What are plasmids
Plasmids are small loops of DNA that aren’t part of the chromosomal DNA
What is chromosomal DNA
A single loop of genetic material that isn’t enclosed in the nucleus
Where are eukaryotic cells found in and what organelles do they have
Eukaryotic cell are found in animals and plant cells including fungi and protists. They have a cell membrane, cytoplasm and genetic material that’s enclosed in the nucleus.
What is the function of the nucleus
Contains genetic material
What’s the function of a cytoplasm
Made up of a liquid gel that’s holds all cellular organelles; the place where chemical reactions occur
What is the function of ribosomes
The place where proteins are produced
What’s the function of the mitochondria
the place where aerobic respiration, which releases energy, occurs
What’s the function of the cell membrane
A thin, selective permeable membrane that controls which substances can enter and leave the cell
What are the extra 3 organelles that plant cells have that animal cells don’t?
Cell wall, chloroplasts and large central vacuole.
What’s the cell wall made of and what’s it’s function
It’s made of cellulose which strengthens and protects the cell
What does the large vacuole contain and what’s its function
Fillies with cell sap; stores materials and waste; and keeps the cell rigid
What do the chloroplasts contain and what’s their function
Contains chlorophyll; the place where photosynthesis occurs
what’s the function of the acrosome in a sperm cell
it contains enzymes to help break down the egg membrane
what’s the function of the mitochondria in the sperm cell
it helps provide energy to power the tail
what’s the function of the haploid nucleus in the sperm cell
It contains half of the number of chromosomes of a normal cell
What’s the function of the long tail in a sperm cell
the long tail and streamlined shape enables the sperm to swim to the egg