B2- Scaling Up

Question 1

Osmosis

Answer 1

The diffusion of water molecules through a partially permeable membrane, from a dilute Solution to a concentrated solution

Question 2

Water potential

Answer 2

A measure of the amount of water particles in a solution

Question 3

Partially permeable membrane

Answer 3

A membrane that allow some small molecules to pass through but not larger molecules

Question 4

Mitosis

Answer 4

Cell division that results in genetically identical diploid cells

Question 5

Stem cells

Answer 5

Unspecialised body cells that can develop into other, specialised, cells that the body needs

Question 6

Differentiation

Answer 6

When cells gain certain features needed for their functions; they become specialised

Question 7

Organ

Answer 7

Group of tissues that carries out a specific function

Question 8

Organ systems

Answer 8

Arrangement of organs in the body according to function

Question 9

Specialised cells

Answer 9

When cells or tissues become adapted to carry out their special functions

Question 10

Meristems

Answer 10

Regions at tips of roots and shoots where cell division and elongation takes place

Question 11

Active Transport

Answer 11

Movement of a solute against a concentration gradient

Question 12

Embryonic stem cells

Answer 12

Form when an egg and sperm cell fuse to form a zygote AND can differentiate into any type of cell in the body

Question 13

Adult stem cells

Answer 13

If found in bone marrow they can form many types of cells (not any type, like embryonic stem cells can) including blood cells

Question 14

Meristems in plants

Answer 14

Found in root and shoot tips and can differentiate into any type of plant