Cells Flashcards
0
Q
what is the function of the cytoplasm?
A
- jelly like substance in which all the cells organelles are suspended
- hold organelles together
- where most cellular activities occur
- helps to move materials around the cell, dissolves cellular waste
1
Q
what is the function of the cell membrane?
A
- forms a border around the cell and separates the inside of the cell from the outside environment
- protects the cell from its surroundings
- selectively allows nutrients to enter and leave the cell
- controls the movement of substances in and out of the cell
- attachment surface for extracellular structures
2
Q
what is the function of the nucleus?
A
- largest organelle in the cell
- coordinates all activities of the cell
- keeps it alive and functioning
- contains DNA (deoxyribonucleic acid)
3
Q
what is the function of the nucleolus?
A
- to produce and hold RNA
- to produce and assemble subunits which form ribosomes
- plays a part in the manufacture of proteins
4
Q
what is the function of the mitochondria?
A
- site of cellular respiration (makes energy)
5
Q
what is the function of the golgi body?
A
- modification, packaging, storage and secretion of cell products
- helps in getting rid of wastes produced by the cell
6
Q
what is the function of lysosomes?
A
- contain digestive enzymes that break down large molecules
digestive function in the cell
7
Q
what is the function of the smooth e.r?
A
- communication network between the cytoplasm and the nucleus
- helps with movement of nutrients around the cell
- produces lysosomes
8
Q
what is the function of the rough e.r?
A
- site of protein synthesis
- produces proteins
9
Q
what is the function of the ribosomes?
A
- where proteins are made
10
Q
what is the function of the centriole?
A
- formation and organisation of the spindle fibres during mitosis
- helps in the completion of cytokinesis during cell division
11
Q
what is the function of the cell pore?
A
- gap in the nuclear membrane allowing substances in and out of the nucleus
12
Q
what is the function of the nuclear membrane?
A
- separates the nucleus from the rest of the organelles
- double membrane which has nuclear pores to allow certain substances in and out of the nucleus
