101. Practice check: Choose the correct biology answer: which gas is released by plants during photosynthesis?
✅ D. Oxygen
a: Methane | b: Ammonia | c: Carbon monoxide | d: Oxygen Read more
Biology MCQs – Page 6
102. Practice check: Choose the correct biology answer: which process reduces chromosome number to form gametes?
✅ B. Meiosis
a: Budding | b: Meiosis | c: Binary fission | d: Mitosis Read more
103. Practice check: Choose the correct biology answer: which plant tissue transports water upward?
✅ C. Xylem
a: Cortex only | b: Phloem | c: Xylem | d: Epidermis Read more
104. Practice check: Choose the correct biology answer: which plant tissue transports sugars?
✅ D. Phloem
a: Cuticle | b: Stomata | c: Xylem | d: Phloem Read more
105. Practice check: Choose the correct biology answer: which blood component helps form clots?
✅ B. Platelets
a: Red blood cells | b: Platelets | c: Alveoli | d: Neurons Read more
106. Practice check: Choose the correct biology answer: which part of the eye controls the amount of light entering?
✅ D. Iris
a: Optic nerve | b: Retina | c: Cornea only | d: Iris Read more
107. Practice check: Choose the correct biology answer: what is the largest organ of the human body?
✅ B. Skin
a: Brain | b: Skin | c: Liver | d: Lung Read more
108. Practice check: Choose the correct biology answer: which structure controls what enters and leaves a cell?
✅ B. Cell membrane
a: Cell wall only | b: Cell membrane | c: Chromosome | d: Nucleolus Read more
109. Practice check: Choose the correct biology answer: which molecule is the main immediate energy currency of cells?
✅ B. ATP
a: RNA | b: ATP | c: DNA | d: Starch Read more
110. Practice check: Choose the correct biology answer: what is the study of insects called?
✅ C. Entomology
a: Mycology | b: Herpetology | c: Entomology | d: Botany Read more
111. Practice check: Choose the correct biology answer: which organisms make their own food using sunlight in most ecosystems?
✅ B. Producers
a: Primary consumers | b: Producers | c: Predators | d: Decomposers only Read more
112. Practice check: Choose the correct biology answer: what is the study of fungi called?
✅ A. Mycology
a: Mycology | b: Ecology | c: Entomology | d: Ornithology Read more
113. Practice check: Choose the correct biology answer: which part of the brain helps coordinate balance and movement?
✅ A. Cerebellum
a: Cerebellum | b: Pituitary gland | c: Hypothalamus | d: Medulla only Read more
114. Practice check: Choose the correct biology answer: which organ produces insulin?
✅ A. Pancreas
a: Pancreas | b: Thyroid | c: Gallbladder | d: Spleen Read more
115. Practice check: Choose the correct biology answer: which biological process produces two genetically similar daughter cells for growth?
✅ B. Mitosis
a: Fertilization | b: Mitosis | c: Meiosis | d: Transcription Read more
116. Practice check: Choose the correct biology answer: which vitamin is essential for normal blood clotting?
✅ C. Vitamin K
a: Vitamin B1 | b: Vitamin D | c: Vitamin K | d: Vitamin C Read more
117. Practice check: Choose the correct biology answer: which organ is primarily responsible for gas exchange in humans?
✅ D. Lungs
a: Spleen | b: Heart | c: Gallbladder | d: Lungs Read more
118. Practice check: Choose the correct biology answer: 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
119. Practice check: Choose the correct biology answer: which part of a plant absorbs most water from soil?
✅ B. Roots
a: Flowers | b: Roots | c: Fruits | d: Leaves only Read more
120. Practice check: Choose the correct biology answer: which pigment gives many plants their green colour?
✅ A. Chlorophyll
a: Chlorophyll | b: Melanin | c: Haemoglobin | d: Keratin Read more