Photosynthesis

Multiple Choice

Which of the following are raw materials for photosynthesis?

• oxygen and water

• oxygen and carbon dioxide

• carbon dioxide and water

• carbohydrates and water

Multiple Choice

Complete the statement: During photosynthesis, carbon dioxide is ______ and water is _____.

• reduced, oxidized

• reduced, reduced

• oxidized, reduced

• oxidized, oxidized

Multiple Choice

Where does the energy come from to drive photosynthesis?

• Chloroplast

• The sun

• ATP

• Glucose

Multiple Choice

Complete the statement: Animals and other __________ rely on __________ that carry out photosynthesis.

• autotrophs; autotrophs

• heterotrophs; autotrophs

• heterotrophs; heterotrophs

• autotrophs; heterotrophs

Multiple Choice

Which of the following refers to the small opening of the leaves where carbon dioxide enters?

• Stoma

• Stroma

• Mesophyll

• Thylakoid

Multiple Choice

Which of the following gives up electrons that replace those passed to an energy acceptor molecule from the reaction center of PS II?

• Oxygen

• Carbon dioxide

• Glucose

• Water

Multiple Choice

What accumulates in the thylakoid compartment of chloroplasts in the light-dependent reactions?

• Sugars

• $$O_2$$  

• Hydrogen ions

• $$CO_2$$  

Multiple Choice

What movement of hydrogen ions during the light reactions of photosynthesis leads to the production of ATP?

• Down a concentration gradient from the thylakoid space to the stroma

• Against a concentration gradient from the thylakoid space to the stroma

• Down a concentration gradient from the stroma to the thylakoid space

• Against a concentration gradient from the stroma to the thylakoid space

Multiple Choice

What is the final acceptor of electrons during the light reactions?

• PS I

• NADP+

• PS II

• Water

Multiple Choice

What results from the light-dependent reactions?

• Carbon dioxide is fixed

• CO2 accepts electrons

• ATP forms

• Sugars form