What must always be present for fermentation to occur in a yeast cell?
Enzymes
Light
Mitochondria
Which cellular process is the source of energy for ATP regeneration?
Active transport
Diffusion
Respiration
Which word equation correctly describes the regeneration of ATP?
\[\text{ADP} + \text{Pi} + \text{energy} \to \text{ATP}\]
\[\text{ADP} + \text{Pi} \to \text{ATP} + \text{energy}\]
\[\text{ATP} \to \text{ADP} + \text{Pi} + \text{energy}\]
Which of the following molecules is the direct source of energy for cellular activities?
ADP
ATP
Glucose
Which cellular activity does not require a supply of ATP?
Cell division
Passive transport
Protein synthesis
What is the end product of the first stage of aerobic respiration?
Lactic acid
Pyruvate
Which word equation correctly summarises aerobic respiration?
\[\text{glucose} \to \text{lactic\,acid}\]
\[\text{glucose} + \text{oxygen} \to \text{carbon\,dioxide} + \text{water}\]
\[\text{glucose} + \text{oxygen} \to \text{carbon\,dioxide} + \text{water} + \text{ATP}\]
How many ATP molecules could be produced outside the mitochondria by the breakdown of 10 glucose molecules?
20
360
380
Which word equation correctly describes the fermentation pathway that occurs in muscle cells?
\[\text{glucose} \to \text{ethanol} + \text{carbon\,dioxide}\]
\[\text{glucose} \to \text{lactic\,acid} + \text{carbon\,dioxide}\]
In which part of a cell is the most ATP produced?
Cytoplasm
Ribosomes