Characteristics of Life

Question 1

Diversity of Life

Answer 1

Refers to the large variety of living organisms present on Earth.

Question 2

Life

Answer 2

Is an organic based object that possesses the characteristics of metabolism and continuity of life.

Question 3

Metabolism

Answer 3

The sum of all chemical reactions in the body.

Question 4

Continuity of Life

Answer 4

Refers to cells arising from cells of the same type.

Question 5

What are the characteristics of life?

Answer 5

1. Biological organisation
2. Nutrition
3. Excretion
4. Response
5. Reproduction

Question 6

Biological organisation

Answer 6

• Refers to the different levels of complexity in an organism.
• cell ➡️ tissue ➡️ organ ➡️ organ systems ➡️ organism ➡️ population

Question 7

Nutrition

Answer 7

Is the way by which an organism obtains and uses food.

Question 8

Autotrophic

Answer 8

An organism makes its own food, e.g. plants.

Question 9

Heterotrophic

Answer 9

An organism must obtain its food from another organism.

Question 10

Excretion

Answer 10

Is the removal of waste products of metabolism.

Question 11

What is the homeostasis of mammals

Answer 11

37°C

Question 12

Diffusion

Answer 12

Movement of molecules from an area of high concentration to an area of low concentration.

Question 13

Response

Answer 13

Is the way an organism reacts to stimulus (its environment).

Question 14

Reproduction

Answer 14

Is the way in which new offspring is produced from the parents.

Question 15

Sexual reproduction

Answer 15

Two parents involved and produces variation, e.g humans.

Question 16

Asexual reproduction

Answer 16

One parent involved and produces no variation (identical copies of the organism), e.g strawberries.