B1- definitions

Question 1

What is cell membrane?

Answer 1

controls the movement of substances in and out of cells

Question 2

what is a cell wall?

Answer 2

made of cellulose which strengthens the cell

-keeps cell rigid

Question 3

what is a chloroplast?

Answer 3

contain chlorophyll

Question 4

what is a chromosome?

Answer 4

contains dna and gene inside nucleus every cell has 46

Question 5

what is a cytoplasm?

Answer 5

jelly like substance where chemical reactions happen

Question 6

dna

Answer 6

double helix carrying genetic information

Question 7

eukaryotic

Answer 7

bigger than prokaryotic contain a nucleus animal and plant cells

Question 8

magnification

Answer 8

image size/actual size

Question 9

mitochondria

Answer 9

where energy is released through respiration

Question 10

nucleus

Answer 10

contains genetic material

Question 11

plasmid

Answer 11

in prokaryotic cells dna rings

Question 12

prokaryotic

Answer 12

no nucleus eg bacteria

Question 13

resolution

Answer 13

the degree to which it is possible to distinguish between two points

Question 14

ribosome

Answer 14

site of protein synthesis

Question 15

permanent vacuole

Answer 15

contains cell sap helps cell stay rigid