cell structure and function

Question 1

basic cell structure

Answer 1

plasma (cell) membrane
cytoplasm
Nuclear membrane
nucleolus
nucleus

Question 2

cell function

Answer 2

respiration
growth
excretion
irritability

Question 3

cell membrane

Answer 3

an outer coating which selectively transports substances into and out the cell

Question 4

nucleus

Answer 4

the control centre of the cell, regulating its general and specialist functions

Question 5

ribosomes

Answer 5

made of ribonucleic acid (RNA) and protein, they manufacture other proteins

Question 6

rough and smooth endoplasmic reticulum

Answer 6

this manufactures, stores and transports materials within and outside of the cell

Question 7

mitochondria

Answer 7

situated in the cytoplasm, these supply the cells energy source

Question 8

centrioles

Answer 8

essential for cell division

Question 9

lysosomes

Answer 9

contain enzymes which digest worn out parts of the cell for recycling and elimination of waste products

Question 10

Golgi apparatus

Answer 10

modifies and stores manufactured protein and transports it out of the cell

Question 11

cell division

Answer 11

human cells reproduce by the process of miosis, when structures like centrioles replicate. then the cell divides into two identical daughter cells

Question 12

enzymes

Answer 12

protein catalysts that enable metabolic reactions at low temperatures. Enzymes are involved in the cell functions of respiration, growth, excretion and irritability

Question 13

nucleic acids

Answer 13

DNA carries cells genes as chromosomes. genes are coded ‘instructions’ for making proteins for cell function.

RNA has three types that are all involved in the decoding of DNA to make proteins