The movement of molecules against the concentration gradient with the use of ATP is: MCQ with Answer and Explanation

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:
Photosynthesis, the process of converting light energy into chemical energy (glucose), occurs in the chloroplasts of plant cells, specifically involving the thylakoid membranes and stroma. Cellular respiration, the process of breaking down glucose to release ATP for cellular work, occurs primarily in the mitochondria of both plant and animal cells. Transpiration is the loss of water vapor from the aerial parts of the plant, primarily through the stomata on the leaves, not through the roots (which absorb water). Thus, statements 1 and 2 are correct.

Explanation:
Bacteria are unicellular prokaryotes lacking a true nucleus and membrane-bound organelles. Fungi are heterotrophic eukaryotes that lack chlorophyll and cannot perform photosynthesis. Viruses are obligate intracellular parasites that lack metabolic machinery and absolutely require a living host cell to replicate. Therefore, only statement 1 is correct.