Cells
What is the basic unit of life?
Cell
Which component of blood carries oxygen?
Red Blood Cells
Which gas is needed for aerobic respiration?
Oxygen
How many characteristics of living organisms are there?
Seven
Which nutrient builds and repairs body tissues?
Protein
Which part of the cell controls its activities?
Nucleus
Which component fights against pathogens?
White Blood Cells
Which gas is produced during aerobic respiration?
Carbon dioxide
Give one characteristic of living organisms.
(Any: Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition)
Which nutrient provides quick energy?
Carbohydrates
Name a structure found in plant cells but not in animal cells.
Cell wall or chloroplast
Which part of blood carries nutrients and carbon dioxide?
Plasma
Where in the cell does aerobic respiration occur?
Mitochondria
Members of the same species can produce…
Fertile offspring
Which vitamin is important for healthy bones and teeth?
Vitamin D
Which cell type has a biconcave shape for transporting oxygen?
Red Blood Cell
Name the two gases exchanged between alveoli and blood.
Oxygen and carbon dioxide
What is the word equation for aerobic respiration?
Glucose + oxygen → carbon dioxide + water
What tool uses two choices at each step to identify organisms?
Dichotomous key
Which two nutrients can be used as energy stores?
Carbohydrates and fats
A group of tissues working together form a…
Organ
What happens to oxygen in the lungs?
It diffuses into the blood
What is the main purpose of respiration in cells?
To release energy
Why are viruses not considered fully living?
They cannot reproduce without a host
Name three possible health problems from an unbalanced diet.
(Any: Obesity, scurvy, anaemia, rickets, stunted growth, etc.)