Cell structure 2.1.1

Question 1

what are eukaryotic cells?

Answer 1

any organism whose cells contain membrane- bound organelles such as a nucleus, mitochondria, chloroplasts ect.

Question 2

what are prokaryotic cells?

Answer 2

prokaryotes lack membrane bound organelles such as a nucleus, mitochondria, and are most commonly found in bacteria, and green algae

Question 3

what is a nuclear envelope?

Answer 3

the nucleus is bound by a double membrane ne, each membrane is similar in structure to the cell surface of the plasma membrane.

Question 4

what is a plasma membrane?

Answer 4

what the cell is bound by. It controls what goes in and out of the cell.

Question 5

describe the function of a nucleus (relate to structure)

Answer 5

It is the largest organelle and contains the nucleolus which contains genetic material, also it controls cell activities.

Question 6

describe the function of the nucleolus (relate to structure)`

Answer 6

It has a dense structure which creates ribonucleic acid and ribosomes which take part in RNA in protein synthesis within the cytoplasm.

Question 7

describe the function of a mitochondrion (relate to structure)

Answer 7

Round double membrane bound organelles that’s are responsible for aerobic respiration.
The inner membrane folds = Cristae
folded into the matrix (centre part)

Question 8

describe the function of a ribosome (relate to structure)

Answer 8

A very small organelle made of RNA and protein