[BOTAFUN] 02 PHOTOSYNTHESIS

What is the main focus of the C3 pathway?

• C4 Anatomy

• Calvin Cycle

• CO2 Accumulation

• CAM Anatomy

Why are stomates partially closed in the C4 pathway?

• To enhance photosynthesis

• To allow more CO2

• To conserve water

• To increase water loss

Which enzyme is responsible for fixing CO2 in mesophyll cells in the C4 pathway?

• PEP Carboxylase

• Decarboxylase

• Rubisco

• Calvinase

What is the first product of the C4 pathway?

• C3 molecule

• 4 carbon molecule

• Oxaloacetate

• Malate

What is the purpose of the C4 pathway in relation to the Calvin Cycle?

• It is a separate pathway

• It is a complementary pathway

• It is an inhibitory pathway

• It is an alternative pathway

What is the CAM pathway primarily associated with?

• C4 plants

• Kranz anatomy

• C3 plants

• Cactus life anatomy

What is the function of the Kranz anatomy in C4 plants?

• To reduce photorespiration

• To increase water loss

• To promote wilting

• To enhance transpiration

Which plant is NOT an example of a C4 plant?

• Sorghum

• Sugarcane

• Maize (corn)

• Rice

What is the advantage of the C4 pathway in terms of photosynthesis?

• Increased photorespiration

• Reduced water use efficiency

• Enhanced photosynthesis under stress conditions

• Decreased CO2 fixation

What is the key feature of C4 plants that contributes to their efficiency?

• High CO2 concentration in mesophyll cells

• Physical separation of CO2 fixation and Calvin Cycle

• Low ATP requirement

• Absence of photorespiration