8Ca-b Exploring Science

What is released during respiration?

• energy

• air

• food

• glucose

Tags

NGSS.MS-LS2-3

Which of these is a correct word equation for respiration?

• glucose + oxygen → carbon dioxide + water

• carbon + dioxygen → glucose + oxygen

• glucose → energy

• oxygen + carbon → carbon dioxide

The main difference between combustion and aerobic respiration is that:

• only combustion releases energy by heating.

• only respiration produces carbon dioxide.

• only respiration produces water.

• combustion is much faster.

Tags

NGSS.HS-LS1-7

On the diagram, the part labelled with the letter X is the:

• blood vessel

• oesophagus

• trachea

• bronchus

During gas exchange in the lungs, there is an overall diffusion of:

• carbon dioxide into the lung and oxygen into the blood.

• oxygen into the lung and carbon dioxide into the blood.

• oxygen and carbon dioxide into the blood.

• oxygen and carbon dioxide into the lung.

During inhalation, rib and diaphragm muscles:

• contract to increase the pressure inside the lungs.

• relax to reduce the pressure inside the lungs.

• contract to reduce the pressure inside the lungs.

• relax to increase the pressure inside the lungs.

Dust is prevented from getting into the lungs by a layer of mucus, which is swept away by:

• alveoli

• cilia

• filaments

• flagella

Respiration is aerobic if it requires:

• carbon dioxide

• energy

• oxygen

• lungs