Topic 2- Homeostasis In Organisms

Question 1

Homeostasis

Answer 1

Internal stability that organisms maintain

Question 2

Photosynthesis

Answer 2

Process by which energy is stored in chemical bonds of organic molecules such as carbohydrates

Question 3

Respiration

Answer 3

Process by which chemical energy is stored in nutrients that is released for use in cells.

Question 4

Photosynthesis

Answer 4

Light energy + water + carbon dioxide —-> glucose + oxygen

Light energy + 6H2O + 6CO2 ——> C6H12O6 + 6O2

Question 5

Complex molecules and their functions
(ATP, DNA, carbohydrates, lipids, protein)

Answer 5

ATP- supplies energy for cells to run on
DNA- carries hereditary information
Carbohydrates & Lipids (fats and oils)- acts as a food reserve molecule
Protein- makes up enzymes and many cell parts

Question 6

Enzymes

Answer 6

Special proteins that affect the rate of chemical reactions

Question 7

Catalyst

Answer 7

Any substance that can affect the rate of a chemical reaction without itself being changed or used up during the reaction.

Question 8

Function of Enzymes

Answer 8

Biochemical processes such as digestion (breakdown), synthesis (building up), cellular respiration (energy release) and photosynthesis (energy capture).

Question 9

What conditions impact the rate of enzyme action?

Answer 9

Shape, Temperature, pH