B1. characteristics of living organisms

Question 1

name the seven characteristics of living organisms

Answer 1

movement, respiration, sensitivity, growth, excretion, nutrition, reproduction

Question 2

define movement

Answer 2

action by an organism causing a change of position or place

Question 3

define sensitivity

Answer 3

the ability to sense stimuli in the environment and make appropriate responses

Question 4

define respiration

Answer 4

the chemical reactions in cells that break down nutrient molecules and release energy

Question 5

define growth

Answer 5

the permanent increase in size and dry mass by an increase in cell size or/ and number

Question 6

define excretion

Answer 6

removal from organisms of waste products of metabolism, toxic materials and substances in excess of requirement

Question 7

define nutrition

Answer 7

taking in of materials for energy, growth and development

Question 8

define reproduction

Answer 8

the process that makes more of the same kind of organism

Question 9

describe the structural differences between a plant and an animal cell

Answer 9

a plant cell has chloroplasts and a cell wall which animal cells don’t have and plant cell’s vacuoles a much bigger than animal cell’s vacuoles