Cellular respiration first step Glycolysis Quiz

Why is glycolysis the first step of cellular respiration?

• It produces oxygen

• It breaks glucose into pyruvate for the next stages

• It makes the most ATP

• It happens inside mitochondria

Where does glycolysis occur?

• Mitochondrial matrix

• Cytoplasm

• Thylakoid membrane

• Nucleus

What is the main input molecule for glycolysis?

• Oxygen

• NADH

• Glucose

• CO₂

What are the products of glycolysis?

• Glucose, CO₂, ATP

• ATP, NADH, and pyruvate

• Water and oxygen

• Acetyl-CoA and CO₂

Glycolysis is considered which type of process?

• Aerobic

• Anaerobic

• Requires sunlight

• Occurs only in plants

What is the importance of pyruvate produced in glycolysis?

• It creates glucose

• It is required to begin the next stage

• It stores oxygen

• It becomes ATP directly

Where does glycolysis occur?

• Mitochondrial matrix

• Cytoplasm

• Inner membrane

• Nucleus

What molecule is split during glycolysis?

• Oxygen

• Water

• Glucose

• Carbon dioxide

What is the NET ATP gain from glycolysis?

• 0

• 1

• 2

• 4

Glycolysis produces which electron carrier?

• NADH

• FADH₂

• NADPH

• ATP Synthase