Chapter 2 - 'The Characteristics of Life'

Question 1

What’s an organism

Answer 1

Living thing

Question 2

What is metabolism

Answer 2

Sum of all chemical reactions in an organism

Question 3

What does ‘Continuity of life’ mean

Answer 3

All living things arise from other living things of the same type

Question 4

What are the characteristics of life (ONERR)

Answer 4

Organisation
Nutrition
Excretion
Response
Reproduction

Question 5

What are the building blocks of life

Answer 5

Cells

Question 6

Levels of organisation (9)

Answer 6

1. cell
2. tissue
3. organ
4. organ system
5. organism
6. population
7. community
8. ecosystem
9. biosphere

Question 7

Explain the term ‘Nutrition’

Answer 7

Way in which organisms obtain and use food

Question 8

Explain the term ‘Excretion’

Answer 8

Removal of waste products of metabolism from the body

Question 9

Explain the term ‘Response’

Answer 9

Way in which all living things react to changes (stimuli) in their internal and external environments. Response is also called behaviour

Question 10

Explain the term ‘Reproduction’

Answer 10

production of new individuals

Question 11

Name and explain the 2 different types of reproduction

Answer 11

1. Sexual Reproduction - involves union of sex cells
2. Asexual Reproduction - doesn’t involves union of sex cells