BIOLOGY - Physiology - Aerobic Respiration

Respiration is a chemical process that provides energy for life processes in all living cells. It includes aerobic respiration, which requires oxygen, and anaerobic respiration, which does not. Aerobic respiration breaks down glucose with oxygen to produce carbon dioxide, water, and energy stored as ATP. This process occurs in the mitochondria of cells. Plants and animals both respire, but plants also photosynthesize, producing oxygen as a byproduct. Photosynthesis and respiration are opposite processes, with plants respiring day and night but photosynthesizing only in daylight.

What is the primary purpose of respiration in living cells?

• To absorb carbon dioxide

• To supply energy for life processes

• To produce oxygen

• To create glucose

Which type of respiration requires oxygen?

• Anaerobic respiration

• Neither type of respiration

• Aerobic respiration

• Both aerobic and anaerobic respiration

What are the byproducts of aerobic respiration?

• Nitrogen and ATP

• Glucose and ATP

• Carbon dioxide and water

• Oxygen and glucose

How do plants obtain the oxygen needed for respiration?

• Through their roots

• From the oxygen released during photosynthesis

• From the air through stomata

• By absorbing it from the soil

When do plants perform photosynthesis?

• Throughout the day and night

• Only at night

• Only during the winter

• Only during the day when light is available