B2.1 Supplying The Cell

Question 1

Active transport

Answer 1

Movement of molecules against the concentration gradient

Question 2

Cell cycle

Answer 2

The process of cell growth and division

Question 3

Concentration gradient

Answer 3

Difference in concentration between two regions

Question 4

Differentiation

Answer 4

Conversion of cell from unspecialised to specialised

Question 5

Diffusion

Answer 5

Net movement of particles from a place where there is a high concentration, to one where there is a low concentration

Question 6

DNA replication

Answer 6

Process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules

Question 7

Meristems

Answer 7

Growing region of a plant

Question 8

Mitosis

Answer 8

Process by which body cells divide

Question 9

Osmosis

Answer 9

Diffusion of water molecules from region of high concentrations to low concentration through a selectively permeable membrane

Question 10

Specialised

Answer 10

A cell that is adapted to perform a particular function is called a specialised cell

Question 11

Stem cell

Answer 11

Undifferentiated cell

Question 12

Water potential

Answer 12

Concentration of free water molecules