3E Respiration

Multiple Choice

Why is respiration important for humans?

• It provides energy for all bodily functions.

• It helps in digestion of food.

• It is responsible for blood circulation.

• It produces hormones.

Open Ended

Why do you think we yawn?

Multiple Select

Select all that are true about anaerobic respiration in human cells.

• It occurs in the presence of oxygen.

• It releases energy by breaking down glucose.

• It occurs in the absence of oxygen.

• It produces less energy than aerobic respiration.

Fill in the Blanks

Cells respire anaerobically during vigorous exercise, resulting in an oxygen debt that is removed by rapid, deep

after exercise.

Open Ended

Define aerobic respiration in human cells.

Open Ended

What do you feel after you have eaten some food?

Multiple Choice

Which of the following life processes requires energy obtained from food?

• Movement

• Photosynthesis

• Evaporation

• Condensation

Multiple Choice

What happens to glucose in cells in order to release energy?

• It is broken down

• It is stored as fat

• It is converted to protein

• It is excreted as waste

Multiple Choice

Which statement best describes aerobic respiration?

• It breaks down glucose in the presence of oxygen to release energy.

• It produces glucose from carbon dioxide and water.

• It stores energy in the form of fat.

• It occurs only in plant cells.

Multiple Select

Which of the following are products of aerobic respiration?

• Carbon dioxide

• Water

• Glucose

• Oxygen

Fill in the Blanks

The powerhouse of the cell where respiration occurs is the

.

Multiple Choice

Which of the following statements best explains why aerobic respiration is important for living organisms?

• It allows organisms to survive without oxygen.

• It provides a large amount of energy needed for life processes.

• It only occurs in plants.

• It produces lactic acid as a by-product.

Fill in the Blanks

Fill in the blank: Anaerobic respiration involves the breakdown of glucose in the absence of

.

Multiple Choice

Compare aerobic and anaerobic respiration in terms of oxygen requirement and energy yield.

• Aerobic respiration requires oxygen and yields a large amount of energy, while anaerobic respiration does not require oxygen and yields less energy.

• Aerobic respiration does not require oxygen and yields less energy, while anaerobic respiration requires oxygen and yields more energy.

• Both require oxygen and yield the same amount of energy.

• Neither requires oxygen and both yield a large amount of energy.

Multiple Select

Which of the following are products of anaerobic respiration in muscle cells?

• Lactic acid

• Oxygen

• Glucose

• Energy

Open Ended

What vigorous physical activities can sharply increase your breathing and heart rate?

Multiple Select

Select all the correct statements about aerobic and anaerobic respiration.

• Aerobic respiration occurs in the presence of oxygen and releases a large amount of energy.

• Anaerobic respiration occurs in the absence of oxygen and releases a small amount of energy.

• Aerobic respiration occurs without oxygen.

• Anaerobic respiration releases more energy than aerobic respiration.

Multiple Choice

Which of the following statements about respiration is correct?

• Respiration is the breakdown of food molecules such as glucose to release energy.

• Respiration is the process of inhaling only oxygen.

• Respiration only occurs in plants.

• Respiration does not release energy.

Fill in the Blanks

Fill in the blank:

is required for life processes and to perform various activities.

Open Ended

What is an oxygen debt?

Multiple Choice

Why do living things respire?

• To obtain energy for life processes and activities.

• To get rid of waste products only.

• To produce food.

• To increase body temperature.