Levels of structural organisation

Question 1

Chemical Level

Answer 1

Is the basic level of organisation. Atoms combine to form molecules such as water, proteins and organelles.

Question 2

Cellular Level

Answer 2

Cells are the smallest unit of living things. Whilst all cells have common functions they vary widely in size and shape to reflect their unique roles.

Question 3

Tissue Level

Answer 3

Tissues are groups of similar cells that have a common function. There are 4 basic tissue types:

• Connective
• Epithelial
• Muscle
• Nervous

Question 4

Connective Tissue

Answer 4

Supports and protects body organs.

Question 5

Nervous Tissue

Answer 5

Provides rapid internal communication and response.

Question 6

Epithelium

Answer 6

Covers the body and lines its cavities.

Question 7

Muscle

Answer 7

Provides movement and protects organs

Question 8

Organ Level

Answer 8

An organ is a discrete structure that is comprised of at least 2 (commonly 4) tissue types. It performs complex functions for the body.

Question 9

Organ System Level

Answer 9

Organs work together to achieve a common purpose

Question 10

Organisational Level

Answer 10

The sum total of all levels working together to keep us alive.