The primary product of photosynthesis is: MCQ with Answer and Explanation

Explanation:
The right ventricle pumps deoxygenated blood through the pulmonary artery to the lungs for oxygenation. The pulmonary artery is the only artery carrying deoxygenated blood. Pulmonary veins carry oxygenated blood from lungs to the left atrium. The left atrium receives oxygenated blood, not deoxygenated. The right atrium receives deoxygenated blood from the body. Thus, C is correct.

Explanation:
The modern cell theory includes all three statements: (1) all organisms are made of cells, (2) the cell is the basic unit of life, and (3) cells arise from pre-existing cells (Omnis cellula e cellula). Thus, all three are correct. This theory was formulated by Schleiden, Schwann, and Virchow.

Explanation:
Water moves from the soil (high water potential) into root hair cells (lower water potential due to solutes) by osmosis across the semipermeable membrane. Active transport is for minerals, transpiration pull is for upward movement.