B2 - Cell division

Question 1

Active transport

Answer 1

The movement of substances from a more dilute solution to a more concentrated solution (against a concentration gradient) with the uses of energy from respiration

Question 2

Adult stem cell

Answer 2

A type of stem cell that can form many types of cells

Question 3

Agar jelly

Answer 3

A substance placed in Petri dishes which is used to culture microorganisms on

Question 4

Cell differentiation

Answer 4

The process where a cell becomes specialised to its function is

Question 5

Cell membrane

Answer 5

A partially permeable barrier that surrounds the cell

Question 6

Cell wall

Answer 6

An outer layer made of cellulose that strengthens plant cells

Question 7

Chloroplasts

Answer 7

An organelle which is the site of photosynthesis

Question 8

Chromosomes

Answer 8

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

Question 9

Concentration gradient

Answer 9

The difference in concentration between two areas

Question 10

Diffusion

Answer 10

The net movement of particles from a higher concentration to a lower concentration across a concentration gradient

Question 11

Embryonic stem cell

Answer 11

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

Question 12

Eukaryotic cell

Answer 12

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

Question 13

Magnification

Answer 13

How much bigger an image appears compared to the original subject

Question 14

Meristematic cells

Answer 14

A type of stem cell that differentiate into any type of plant cell

Question 15

Mitochondria

Answer 15

An organelle which is the site of respiration

Question 16

Mitosis

Answer 16

A type of cell Davison which produces two genetically identical daughter cells from one parent cell

Question 17

Nucleus

Answer 17

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

Question 18

Organelle

Answer 18

A specialised structure found inside a cell

Question 19

Osmosis

Answer 19

The net movement of water particles form a higher concentration gradient to a lower concentration gradient across a concentration gradient

Question 20

Plasmid

Answer 20

Loops of DNA found in the cytoplasm of prokaryotic

Question 21

Resolution

Answer 21

The ability to distinguish two different points in a specimen

Question 22

Specialised cells

Answer 22

Cells that are adapted to perform a specific function

Question 23

Stem cell

Answer 23

An undifferentiated cell that can divide to produce many specialised cell as of the same type

Question 24

Surface area

Answer 24

The amount of contact an object has with its environment

Question 25

SA:V

Answer 25

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

Question 26

The cell cycle

Answer 26

A series of stages preparing the cell for division

Question 27

Therapeutic cloning

Answer 27

Producing an embryo that has the same genes as a patient

Question 28

Vacuole

Answer 28

An organelle that stores cell sap