MCQ Subject: Biology

Which of the following plant types primarily uses the C4 photosynthesis pathway to reduce photorespiration?

In the human skeleton, how many ribs are directly attached to the breastbone (sternum)?

What is the primary direction of water movement during osmosis in plant cells?

Which of the following valves in the human heart ensures blood flows from the left atrium to the left ventricle?

Which part of the human digestive system is primarily responsible for the mechanical digestion of food through churning and mixing with gastric juices?

The primary site for gas exchange during photosynthesis in plants is characterized by the presence of ______.

Which photosynthetic adaptation involves opening stomata at night to conserve water in hot, dry environments?

Which part of a plant root is primarily responsible for increasing the surface area for water absorption?

Which cell component is primarily responsible for synthesizing proteins from amino acids?

Which part of a cell is primarily responsible for protein synthesis?