201. Which option correctly completes the fact: which gas is released by plants during photosynthesis?
✅ C. Oxygen
a: Carbon monoxide | b: Methane | c: Oxygen | d: Ammonia Read more
Biology MCQs – Page 11
202. Which option correctly completes the fact: which process reduces chromosome number to form gametes?
✅ C. Meiosis
a: Mitosis | b: Budding | c: Meiosis | d: Binary fission Read more
203. Which option correctly completes the fact: which plant tissue transports sugars?
✅ B. Phloem
a: Cuticle | b: Phloem | c: Stomata | d: Xylem Read more
204. Which option correctly completes the fact: which plant tissue transports water upward?
✅ A. Xylem
a: Xylem | b: Epidermis | c: Phloem | d: Cortex only Read more
205. Which option correctly completes the fact: which blood component helps form clots?
✅ A. Platelets
a: Platelets | b: Neurons | c: Red blood cells | d: Alveoli Read more
206. Which option correctly completes the fact: which part of the eye controls the amount of light entering?
✅ C. Iris
a: Retina | b: Optic nerve | c: Iris | d: Cornea only Read more
207. Which option correctly completes the fact: which structure controls what enters and leaves a cell?
✅ D. Cell membrane
a: Nucleolus | b: Cell wall only | c: Chromosome | d: Cell membrane Read more
208. Which option correctly completes the fact: what is the largest organ of the human body?
✅ A. Skin
a: Skin | b: Liver | c: Brain | d: Lung Read more
209. Which option correctly completes the fact: which molecule is the main immediate energy currency of cells?
✅ C. ATP
a: DNA | b: RNA | c: ATP | d: Starch Read more
210. Which option correctly completes the fact: which organisms make their own food using sunlight in most ecosystems?
✅ C. Producers
a: Decomposers only | b: Primary consumers | c: Producers | d: Predators Read more
211. Which option correctly completes the fact: what is the study of insects called?
✅ B. Entomology
a: Botany | b: Entomology | c: Herpetology | d: Mycology Read more
212. Which option correctly completes the fact: which part of the brain helps coordinate balance and movement?
✅ B. Cerebellum
a: Hypothalamus | b: Cerebellum | c: Pituitary gland | d: Medulla only Read more
213. Which option correctly completes the fact: what is the study of fungi called?
✅ D. Mycology
a: Ornithology | b: Entomology | c: Ecology | d: Mycology Read more
214. Which option correctly completes the fact: which organ produces insulin?
✅ A. Pancreas
a: Pancreas | b: Gallbladder | c: Spleen | d: Thyroid Read more
215. Which option correctly completes the fact: which biological process produces two genetically similar daughter cells for growth?
✅ D. Mitosis
a: Fertilization | b: Meiosis | c: Transcription | d: Mitosis Read more
216. Which option correctly completes the fact: which vitamin is essential for normal blood clotting?
✅ A. Vitamin K
a: Vitamin K | b: Vitamin D | c: Vitamin B1 | d: Vitamin C Read more
217. Which option correctly completes the fact: which organ is primarily responsible for gas exchange in humans?
✅ B. Lungs
a: Gallbladder | b: Lungs | c: Heart | d: Spleen Read more
218. Which option correctly completes the fact: which cells help defend the body against infection?
✅ C. White blood cells
a: Red blood cells | b: Platelets | c: White blood cells | d: Adipocytes Read more
219. Which option correctly completes the fact: which part of a plant absorbs most water from soil?
✅ D. Roots
a: Flowers | b: Fruits | c: Leaves only | d: Roots Read more
220. Which option correctly completes the fact: which pigment gives many plants their green colour?
✅ B. Chlorophyll
a: Melanin | b: Chlorophyll | c: Haemoglobin | d: Keratin Read more