Practice MCQ Questions and answers on Biology-GK

The great contribution of Schwan was cell theory.

Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant.

Plant cells have certain distinguishing features, including chloroplasts, cell walls, and intracellular vacuoles. Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules.

Membrane bound organelles are not found in the cells of prokaryotes whereas eukaryotes have nucleus and membrane bound organelles.

Cell biology is the study of cell structure and function, and it revolves around the concept that the cell is the fundamental unit of life.

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).

Ribosomes are known as the protein factory of the cell. As they synthesizes the proteins by gathering and assembling amino acids into protein chains.

Development as a sequential knowledge of biology took place in the era of the famous Greek philosopher Aristotle (384- 322 B.C.). He revealed his thoughts about various aspects of the life of plants and animals. Therefore, Aristotle is called as the Father of Biology.