Biology

Question 1

What is MRS GREN

Answer 1

Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition

Question 2

What does a Plant cell have that a animal cell don’t?

Answer 2

Cell wall, Chloroplasts and Vacuoles

Question 3

Name all the parts Animal cells share with Plant cells

Answer 3

Cell membrane, Mitochondria and Cytoplasm

Question 4

Purpose of a Ciliated cell

Answer 4

Movement of mucus in the trachea and bronchi

Question 5

Purpose of Root hair cells

Answer 5

1To absorb minerals and water

Question 6

Purpose of Palisade mesophyll cells

Answer 6

To photosynthesize

Question 7

Purpose of Red blood cells

Answer 7

To transport oxygen

Question 8

Purpose of movement of Sperm and Egg cells

Answer 8

Reproduction purposes

Question 9

Define Diffusion

Answer 9

Diffusion is the net movement of particles from a higher concentration to a lower concentration

Question 10

Define Osmosis

Answer 10

Osmosis is the net movement of water particles from a higher concentration to a lower concentration through a semi-permeable membrane

Question 11

State the movement of substances going in and out of cells

Answer 11

Through Diffusion

Question 12

State the movement of water going in and out of cells

Answer 12

Through Osmosis

Question 13

List the chemical elements that make up: Protein

Answer 13

Hydrogen, Oxygen, Sulfur, Nitrogen and Carbon

Question 14

List the chemical elements that make up: Carbohydrates & Fats

Answer 14

Carbon, Hydrogen and Oxygen

Question 15

What smaller molecules make up Starch & Glycogen

Answer 15

Glucose

Question 16

What smaller molecules make up Proteins

Answer 16

Amino Acids

Question 17

What smaller molecules make up Fats & Oils

Answer 17

Fatty Acids & Glycerol

Question 18

Describe the use of: Iodine tests

Answer 18

Starch

Question 19

Describe the use of: Benedict’s solution

Answer 19

Reducing Sugars

Question 20

Describe the use of: Biuret

Answer 20

Proteins

Question 21

Describe the use of: Ethanol Emulsion

Answer 21

Fats & Oils

Question 22

Define Enzymes

Answer 22

Proteins that acts as biological catalysts

Question 23

Explain the impact on Enzymes if pH is not optimum

Answer 23

Slows down and stops working

Question 24

Explain the impact on Enzymes if temperature is higher than optimum

Answer 24

The active site changes and no longer works as a catalyst

Question 25

Explain the impact on Enzymes if temperature is lower than optimum

Answer 25

The enzyme slows down it’s function and stops working

Question 26

Define photosynthesis

Answer 26

The process of which plants use energy from light to make carbohydrates (food)

Question 27

What is the word equation for photosynthesis

Answer 27

Water + Carbon Dioxide -> Glucose + Oxygen

Question 28

What is the chemical equation for photosynthesis

Answer 28

H2O + CO2 - (light - chlorophyll) -> C6H12O6 + O2