True or false on respiration

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Glucose first breaks into pyruvate.

2. Statement is true

   No

   Statement

   That first step happens in the nucleus.

3. Statement is true

   Yes

   Statement

   Aerobic respiration releases more energy.

4. Statement is true

   Yes

   Statement

   Lactic acid in muscle causes cramps.

5. Statement is true

   No

   Statement

   The lungs empty completely on breathing out.

6. Statement is true

   Yes

   Statement

   Haemoglobin binds oxygen strongly.

Instructions

Decide whether each statement is true or false.

Explanation