#C4 pathway

BOTANY

Which of the following conditions promotes the C4 pathway in plants?

The C4 pathway helps plants avoid photorespiration in hot, dry environments. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Botany section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Botany portion (Latest NCERT Textbooks for Academic Session 2026-27 -

View Details

Photosynthesis - Significance and Bacterial Photosynthesis

Which pathway is used by plants such as maize and sugarcane to minimize photorespiration?

C₄ plants, such as maize and sugarcane, use the C₄ pathway to minimize photorespiration and increase CO₂ efficiency.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Significance and Bacterial Photosynthesis

View Details

Photosynthesis - Significance and Bacterial Photosynthesis

Why is the C₄ pathway considered more efficient than the C₃ pathway?

The C₄ pathway reduces photorespiration by maintaining a high CO₂ concentration around RuBisCO, making it more efficient than the C₃ pathway.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Significance and Bacterial Photosynthesis

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which of the following conditions promotes the C4 pathway in plants?

The C4 pathway helps plants avoid photorespiration in hot, dry environments.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which of the following statements about the C4 pathway is correct?

In the C4 pathway, PEP carboxylase efficiently captures CO2 and minimizes photorespiration.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which of the following is the first stable product in the C4 pathway?

Oxaloacetic acid (OAA), a four-carbon compound, is the first stable product in the C4 pathway.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which enzyme captures carbon dioxide in the C4 pathway?

In the C4 pathway, PEP carboxylase captures CO2 efficiently, forming oxaloacetic acid.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which compound is transported from the mesophyll to the bundle sheath cells in the C₄ pathway?

In C₄ plants, malate is transported from mesophyll cells to bundle sheath cells, where it releases CO₂ for the Calvin cycle.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which of the following is an incorrect statement about the C4 pathway?

In the C4 pathway, carbon fixation occurs in mesophyll cells and the Calvin cycle in bundle sheath cells.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which of the following is an incorrect statement about the C4 pathway?

In C4 plants, carbon fixation occurs in mesophyll cells, while the Calvin cycle occurs in bundle sheath cells.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which of the following is a feature of the C4 pathway in plants?

The C4 pathway separates carbon fixation in mesophyll cells and the Calvin cycle in bundle sheath cells.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details

C4 Pathway - Hatch and Slack and Photorespiration

Which of the following is a correct statement about the C4 pathway?

The C4 pathway forms a four-carbon compound, oxaloacetic acid, as its first product.

Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants C4 Pathway - Hatch and Slack and Photorespiration

View Details