141. Practice check: Which option correctly completes the fact: which biological process produces two genetically similar daughter cells for growth?
✅ B. Mitosis
a: Fertilization | b: Mitosis | c: Meiosis | d: Transcription Read more
Biology MCQs – Page 8
142. Practice check: Which option correctly completes the fact: which cells help defend the body against infection?
✅ D. White blood cells
a: Red blood cells | b: Adipocytes | c: Platelets | d: White blood cells Read more
143. Practice check: Which option correctly completes the fact: which organ is primarily responsible for gas exchange in humans?
✅ A. Lungs
a: Lungs | b: Heart | c: Gallbladder | d: Spleen Read more
144. Practice check: Which option correctly completes the fact: which pigment gives many plants their green colour?
✅ A. Chlorophyll
a: Chlorophyll | b: Keratin | c: Haemoglobin | d: Melanin Read more
145. Practice check: Which option correctly completes the fact: which part of a plant absorbs most water from soil?
✅ D. Roots
a: Leaves only | b: Flowers | c: Fruits | d: Roots Read more
146. Practice check: Which option correctly completes the fact: which organ filters blood to produce urine?
✅ C. Kidney
a: Stomach | b: Lung | c: Kidney | d: Pancreas Read more
147. Practice check: Which option correctly completes the fact: which blood type is commonly called the universal red-cell donor in emergency contexts?
✅ A. O negative
a: O negative | b: AB positive | c: B negative | d: A positive Read more
148. Practice check: Which option correctly completes the fact: which molecule carries hereditary information in most organisms?
✅ A. DNA
a: DNA | b: ATP | c: Glucose | d: Cellulose Read more
149. Practice check: Which option correctly completes the fact: which organelle is often called the powerhouse of the cell?
✅ C. Mitochondrion
a: Golgi apparatus | b: Lysosome | c: Mitochondrion | d: Ribosome Read more
150. Practice check: Which option correctly completes the fact: what is the basic structural and functional unit of life?
✅ D. Cell
a: Organ system | b: Organ | c: Tissue | d: Cell Read more
151. Practice check: In basic biology, which process reduces chromosome number to form gametes?
✅ C. Meiosis
a: Budding | b: Mitosis | c: Meiosis | d: Binary fission Read more
152. Practice check: In basic biology, which gas is released by plants during photosynthesis?
✅ C. Oxygen
a: Carbon monoxide | b: Methane | c: Oxygen | d: Ammonia Read more
153. Practice check: In basic biology, which plant tissue transports sugars?
✅ D. Phloem
a: Stomata | b: Xylem | c: Cuticle | d: Phloem Read more
154. Practice check: In basic biology, which plant tissue transports water upward?
✅ C. Xylem
a: Cortex only | b: Epidermis | c: Xylem | d: Phloem Read more
155. Practice check: In basic biology, which blood component helps form clots?
✅ A. Platelets
a: Platelets | b: Red blood cells | c: Neurons | d: Alveoli Read more
156. Practice check: In basic biology, which part of the eye controls the amount of light entering?
✅ C. Iris
a: Optic nerve | b: Retina | c: Iris | d: Cornea only Read more
157. Practice check: In basic biology, what is the largest organ of the human body?
✅ A. Skin
a: Skin | b: Liver | c: Brain | d: Lung Read more
158. Practice check: In basic biology, which molecule is the main immediate energy currency of cells?
✅ D. ATP
a: Starch | b: RNA | c: DNA | d: ATP Read more
159. Practice check: In basic biology, which structure controls what enters and leaves a cell?
✅ A. Cell membrane
a: Cell membrane | b: Nucleolus | c: Chromosome | d: Cell wall only Read more
160. Practice check: In basic biology, which organisms make their own food using sunlight in most ecosystems?
✅ A. Producers
a: Producers | b: Decomposers only | c: Primary consumers | d: Predators Read more