GCSE biology key words

Question 1

Define Active transport

Answer 1

The movement of particles moving up against the concentration gradient across cell membrane using energy.

Question 2

Antibiotics

Answer 2

Drugs that destroy bacteria inside a body without damaging human cell.

Question 3

Binary fission

Answer 3

Reproduction occurring in bacteria. Two identical daughter cells are produced from one parent cell.

Question 4

Cellulose

Answer 4

A big carbohydrate molecule which make a plant and cell wall. Non-permeable

Question 5

Chloroplast

Answer 5

An organelles where photosynthesis take place

Question 6

Chromosomes

Answer 6

carries genetic information found inside the nucleus of the cell

Question 7

Cytoplasm

Answer 7

Watery base gel which the organelles use of all living cells are surrounded.

Question 8

Magnification

Answer 8

Enlargement of microscope by the state in the same resolution.

Question 9

Meristems

Answer 9

Plant tissues consisting of active dividing cells that give rise to plan and Differentiated into new type of tissue

Question 10

Differentiates

Answer 10

Cells specialised for specific function

Question 11

Diffusion

Answer 11

The net movement of particles from a high concentration area to a low concentration area going down the concentration gradient.

Question 12

Osmosis

Answer 12

Net movement of water particles going from a high concentrated area to a low concentration area down the concentration gradient

Question 13

Gene

Answer 13

Section of DNA carry genetic information

Question 14

Mitochondria

Answer 14

Where respiration occur in cell

Question 15

Mitosis

Answer 15

Cell division where two identical cells are formed

Question 16

Nuclear

Answer 16

Found in cell contains genetic information

Question 17

Organ

Answer 17

A group of different tissues working together to carry out a particular function

Question 18

Plasmid

Answer 18

Extra DNA found in bacteria cytoplasm

Question 19

Prokaryotic

Answer 19

Single living cell

Question 20

Eukaryotic

Answer 20

Group living cell

Question 21

Ribosomes

Answer 21

Where are proteins are made

Question 22

Stem cell

Answer 22

Undifferentiated cells with the potential to form any type of cell

Question 23

Surface area to volume ratio

Answer 23

Small cell have large surface area to volume ratio, quicker for diffusion to happen

Question 24

Tissue

Answer 24

A group of specialised cells working together to carry out a pacific function

Question 25

Respiration

Answer 25

Process by which food molecules are broken down to release energy for the cell

Question 26

Permanent vacuole

Answer 26

Space within the cytoplasm of a plant or Bacteria cell filled with food sap.

Question 27

Equation for photosynthesis

Answer 27

6H2O + 6CO2 >. C6H12O6 + 6O2