Respiration and Gas Exchange

Which of these characteristics makes the alveoli efficient at gas exchange?

• They have thick walls

• They have a large surface area

• They have a poor blood supply

Which of these is produced by aerobic respiration but NOT by anaerobic respiration?

• water

• lactic acid

• ATP

When breathing in, which structure(s) does air enter first?

• alveoil

• trachea

• bronchi

Which chemical formula represents a PRODUCT of AEROBIC respiration?

• C6H12O6

• O2

• CO2

Why does smoking increase the risk of coronary heart disease?

• It increases blood pressure

• It makes blood clots less likely to form

• It reduces heart rate

Which of the following is a produce of anaerobic respiration in animals?

• ethanol

• lactic acid

• hydrochloric acid

What is the role of ATP?

• It stores the energy needed for cell processes

• It provides the cell with oxygen

• It breaks down carbon dioxide in the cell

Why do alveoli have a moist lining?

• To reduce their surface area

• To make their walls permeable

• For gases to dissolve in

Which type of respiration transfers more energy?

• aerobic respiration

• anaerobic respiration

Which of the following is produced by anaerobic respiration in plants?

• lactic acid

• ethanol

• water