1. The one which is present in all living things
Cell nucleus
DNA or RNA
Cell membrane
Vacuole
✅ The correct answer is option B.
Biology Diagnostic Test MCQs
2. The mechanism of stomatal movement is related to the branch of Biology called
Taxonomy
Physiology
Morphology
Anatomy
✅ The correct answer is option B.
3. Maximum number of species of living things on earth are
Algae
Fungi
Insects
Protozoa
✅ The correct answer is option C.
4. Variety among amino acids is produced due to
NH2 group
COOH group
R group
All of these
✅ The correct answer is option C.
5. Primary structure of proteins determines
Number of polypeptide chains involved
Bending of polypeptide chains
Amino acid sequence
Coiling of polypeptide chains
✅ The correct answer is option C.
6. The one which is not a globular protein
Anti Rh-antibody
Enzyme
Myosin
Hemoglobin
✅ The correct answer is option C.
7. An enzyme which converts a dipeptide into separate amino acids is an example of
Decarboxylase
Hydrolase
Oxidoreductase
Transferase
✅ The correct answer is option B.
8. Cellular digestion is associated with which organelle
Mitochondria
Golgi bodies
Plastids
Lysosomes
✅ The correct answer is option D.
9. The unicellular organisms ingest large molecules into their cytoplasm from the external environment without previously digesting them. This process is called
Diffusion
Osmosis
Phagocytosis
Plasmolysis
✅ The correct answer is option C.
10. Membranes of the grane are sites where
Oxygen is stored
Food is stored
Sunlight is trapped
CO2 is stored.
✅ The correct answer is option C.