Respiration SL

Which of the following is the best definition of respiration?

• The controlled release of ATP to produce organic compounds

• The controlled release of ATP using oxygen

• The controlled release of energy from organic compounds to produce ATP

• The controlled release of energy from inorganic compounds to produce ATP

What name is given to the first stage of respiration?

Which of the following is always involved in both aerobic respiration and anaerobic respiration?

• production of lactate

• production of carbon dioxide

• production of pyruvate

• production of water

Which of the following is true of the first stage in respiration?

• it happens in mitochondria

• it requires oxygen

• it happens in the cytoplasm

• it produces ethanol

Which of the following shows the balanced chemical symbol equation for aerobic respiration?

• 6CO₂ + 6H₂O -----> C₆H₁₂O₆ + 6O₂

• C₆H₁₂O₆ ----->. 2CH₅OH +. 2CO₂

• C₆H₁₂O₆ + 6O₂ -----> 6CO₂ + 6H₂O

• 2CH₅OH +. 2CO₂ ----->. C₆H₁₂O₆

Where in a cell does anaerobic respiration happen?

I. rough endoplasmic reticulum

II. mitochondrion

III. cytoplasm

• I and II only

• II only

• II and III only

• III only

Which type of respiration can use lipids, as well as glucose?

Anaerobic respiration in yeast is used in the brewing industry to produce alcoholic drinks.

Brewers continually monitor the level of alcohol in the mixture so that it does not become too high.

What is the main scientific reason for doing this during the brewing process?

• high alcohol is dangerous to peoples' health

• high alcohol will kill yeast cells and stop the brewing process

• high alcohol will cause cause the brewing vessels to overheat

• high alcohol will cause the yeast to use up more glucose

Which of the following are found in a mitochondrion?

I. DNA

II. 70S ribosomes

III. Double cell membrane

• I and II only

• I and III only

• II and III only

• I, II and III

Answer explanation

'Double membrane'is correct. However, it does not have a 'cell' membrane as this is the structure that surrounds a whole cell. A mitochondrion is within a cell.

Which letter on the diagram shows the inner mitochondrial membrane?

• C

• E

• F

• G