What Is Life? 1. The Human Body

Question 1

Anatomy

Answer 1

The branch of sciences that deals with the structure of organisms & their parts.

Question 2

Levels of Anatomy

Answer 2

Gross
Surface
Microscopic
Developmental

Question 3

Gross Anatomy (Macroscopic)

Answer 3

Structures examined without the aid of a microscope.
Systemic: studying the body system by system.
Regional: studying the body area by area.

Question 4

Surface Anatomy (Macroscopic)

Answer 4

The study of the external form of the body.
Relation to deeper structures.

Question 5

Microscopic Anatomy

Answer 5

The study of structures with the aid of a microscope.
Cytology (cells).
Histology (tissues).

Question 6

Developmental Anatomy

Answer 6

The study of the structural changes that occur in the body throughout the lifespan.
Fertilisation to death.
Greatest developmental changes occur before birth.

Question 7

Physiology

Answer 7

The branch of science that deals with the normal function of living organisms & their parts.
The way in which an organism/its parts function.

Question 8

Levels of Physiology

Answer 8

Molecular
Cellular
Systemic

Question 9

Structural & Functional Organisation of the Body (Levels of Organisation)

Answer 9

Chemical level
Cellular level
Tissue level
Organ level
Organ system level
Organism level

Question 10

Chemical level

Answer 10

How atoms interact & combine into molecules.

Question 11

Cellular level

Answer 11

How molecules interact & combine to form organelles.

Question 12

Tissue level

Answer 12

Numerous similar cells & the tissue around them, joined to form a tissue type.

Question 13

Organ level

Answer 13

Two or more tissue types forming an organ that performs one or more function/s.

Question 14

Organ system level

Answer 14

A group of organs performing a common function, making up a system.

Question 15

Organism level

Answer 15

Anything living considered as a whole.

Question 16

Characteristics of an Organism

Answer 16

Organisation
Metabolism
Responsiveness
Growth
Development
Reproduction

Question 17

Organisation

Answer 17

The specific relationships/interactions among parts of an organism - how they perform their functions.

Question 18

Metabolism

Answer 18

The ability to use energy & perform vital functions.

Question 19

Responsiveness

Answer 19

The ability to sense & adjust/react to changes in the environment.

Question 20

Growth

Answer 20

An increase in the size or number of cells - overall enlargement of the organism.

Question 21

Development

Answer 21

The changes an organism undergoes through time.

Question 22

Reproduction

Answer 22

The formation of new cells & new organisms. All living organisms pass on their genes to their offspring.

Question 23

Homeostasis

Answer 23

The maintenance of a relatively constant environment inside the body.