Chapter 1: Characteristics of Living Organisms

Question 1

Characteristics of Living Organisms

Answer 1

“MRS GREN”. Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition.

Question 2

Movement

Answer 2

An action by an organism or part of an organism causing a change of position or place

Question 3

Respiration

Answer 3

The chemical reactions in cells that break down nutrient molecules and release energy for metabolism

Question 4

Sensitivity

Answer 4

The ability to detect or sense stimuli in the internal or external environment and to make appropriate responses

Question 5

Growth

Answer 5

A permanent increase in size and
dry mass by an increase in cell number or cell size or both

Question 6

Reproduction

Answer 6

The processes that make more of the same kind of organism

Question 7

Excretion

Answer 7

The removal from organisms of the
waste products of metabolism (chemical reactions in cells including respiration), toxic materials, and substances over requirements

Question 8

Nutrition

Answer 8

Taking in materials for energy, growth and development; plants require light, carbon dioxide, water and ions; animals need organic compounds and ions and usually need water