cell biology

Question 1

adult stem cell

Answer 1

a type of cell that can form meny types of cells

Question 2

agar jelly

Answer 2

a substance placed in a petri dishes which is used to culture microorganisms on

Question 3

cell differentiation

Answer 3

the process where a cell becomes specialised to its function

Question 4

cell membrane

Answer 4

a partially permeable barrier that surrounds the cell

Question 5

cell wall

Answer 5

an outer layer made of cellulose that strengthens plant cells

Question 6

chloroplast

Answer 6

an organelle which is the site of photosynthesis

Question 7

chromosomes

Answer 7

DNA structures that are found in the nucleus which are made up of genes

Question 8

concentration gradient

Answer 8

the difference in the concentration between two areas

Question 9

diffusion

Answer 9

the movement of particles from an area of hight concentration to an area of low concentration

Question 10

embryonic stem cells

Answer 10

a type of stem cell that can differentiate into most types of human cells

Question 11

eukaryotic cell

Answer 11

a type of cell found in plants and animals that contains a nucleus

Question 12

magnification

Answer 12

how much bigger an image appears compared to the original object

Question 13

meristematic cells

Answer 13

a type of stem cell that can differentiate into any type of plant cell

Question 14

mitochondria

Answer 14

an organelle which is the site of respiration

Question 15

mitosis

Answer 15

a type of cell division which produces two genetically identical daughter calls from one parent cell

Question 16

nucleus

Answer 16

an organelle found in most eukaryotic cells that contains the genetic material of the cell and controls the activities of the cell

Question 17

organelle

Answer 17

a specialised structure found inside a cell

Question 18

osmosis

Answer 18

the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane

Question 19

plasmid

Answer 19

loops of DNA found in the cytoplasm of a prokaryotic cell

Question 20

plasmid

Answer 20

loops of DNA found in the cytoplasm of a prokaryotic cell

Question 21

prokaryotic cell

Answer 21

a type of cell

Question 22

prokaryotic cell

Answer 22

a type of cell found in bacteria that doesn’t contain a nucleus

Question 23

resolution

Answer 23

the ability to distinguish two different points in a specimen

Question 24

specialised cells

Answer 24

cells that are adapted to preform a specific function

Question 25

stem cell

Answer 25

an undifferentiated cell that can be divided to produce many specialised cells of the same type

Question 26

surface area

Answer 26

the amount of contact an object has with its environment

Question 27

surface area to volume ration (SA:V)

Answer 27

the size of the object compared with the amount of area where it contains its environment

Question 28

the cell cycle

Answer 28

a series of stages preparing the cell for division

Question 29

therapeutic cloning

Answer 29

producing an embryo that had the same genes as a patient

Question 30

vacuole

Answer 30

an organelle that stores cell sap

Question 31

vacuole

Answer 31

an organelle that stores cell sap