Unit 1 - characteristics of living organisms

Question 1

Movement

Answer 1

An action which causes the change in position or place of an organism

Question 2

Respiration

Answer 2

The chemical reaction in cells that break down nutrient molecules and release energy. Animals : Oxygen + glucose = CO2 + water + ATP. Breathing is NOT respiration.

Question 3

Sensitivity

Answer 3

The ability to detect and respond the changes in the environment

Question 4

Growth

Answer 4

The action that creates a permanent increase in size and dry mass

Question 5

Reproduction

Answer 5

The process of making more of the same organisms

Question 6

Excretion

Answer 6

The removal of waste products of metabolism or found in excess in the body. NOT the same as egestion, which is he removal of undigested food (feces). An example of excretion in humans is breathing out carbon dioxide, and in plants oxygen.

Question 7

Nutrition

Answer 7

Taking in materials with the purpose of providing energy, growth and development. In plants, that’s photosynthesis

Question 8

Formula for actual size after magnification

Answer 8

Image size/magnification

Question 9

Formula for magnification

Answer 9

Size of image/size of object

Question 10

What is 1mm equal to in micrometers?

Answer 10

1000μm

Question 11

What is the symbol for a micrometer?

Answer 11

μm