Diffusioin
Gas Exchange & Respiration
Breathing & Respiration
Components of the Blood
Endothermic and Exothermic Reactions
100

The spreading of particles from high concentration to low concentration.

What is diffusion?

100

The word equation for aerobic respiration.

What is glucose + oxygen → carbon dioxide + water?

100

This process is mechanical and helps air move in and out of the lungs.

What is breathing?

100

This part of blood transports oxygen.

What are red blood cells?

100

These reactions release heat.

What are exothermic reactions?

200

The food colouring spreads faster in warm water because these move faster.

What are particles?

200

These two gases diffuse between the alveoli and the capillaries.

What are oxygen and carbon dioxide?

200

This process is chemical and releases energy in cells.

What is respiration?

200

This liquid portion carries nutrients, waste, and gases.

What is plasma?

200

These reactions absorb heat from the surroundings.

What are endothermic reactions?

300

The fragrance sprayed in the corner of the classroom eventually reaches everyone by this process.

What is diffusion of gas particles?

300

The reason organisms need oxygen.

What is to release energy during aerobic respiration?

300

This muscle contracts to pull air into the lungs.

What is the diaphragm?

300

This blood component protects the body from pathogens.

What are white blood cells?

300

Combustion is an example of this type of reaction.

What is exothermic?

400

This state of matter diffuses the fastest.

What is gas?

400

The cellular location where aerobic respiration happens.

What are the mitochondria?

400

This reaction uses oxygen to release energy, carbon dioxide, and water.

What is aerobic respiration?

400

Blood appears in layers when spun in this device.

What is a centrifuge?

400

A temperature decrease in a beaker suggests this type of reaction.

What is endothermic?

500

The reason diffusion happens without energy input.

What is random particle movement?

500

This thin structure in the lungs increases surface area for gas exchange.

What are the alveoli?

500

Breathing can be voluntary and involuntary, but this process is always involuntary.

What is respiration?

500

The reason red blood cells have no nucleus.

What is to carry more haemoglobin/oxygen?

500

The energy change in exothermic reactions is shown by heat flowing in this direction.

What is from the system to the surroundings?

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