Cells Flashcards
How many types of amino acid are there
20
Where is dna stored
Nucleus
What is the function of the cell membrane
Controls which substances enter or leave
What is diffusion
When molecules in a liquid of gas move from a region of high concentration to low concentration
How many chromosomes are in a human cheek cell
46
What is chemotherapy
Treatment of cancer using chemicals
What is radiotherapy
A treatment of cancer by using high energy radiation
What shape is DNA
Double helix
What are the four bases called
Adenine, thymine, cytosine, guanine
Where is mRNA produced
In the nucleus
What forms a protein
A long chain of amino acids
What base does guanine pair with
Cytosine
What base does thymine pair with
Adenine
Why is a cell membrane described as semi permeable
It only some substances enter or leave the cell
How many bases make up an amino acid
Three
