Biology (School & UG)

Q. What is the main function of the light-harvesting complexes?
  • A. To transport electrons
  • B. To absorb and transfer light energy
  • C. To fix carbon
  • D. To produce glucose
Q. What is the main function of the phloem in vascular plants?
  • A. Transport water
  • B. Transport nutrients
  • C. Transport sugars
  • D. Support structure
Q. What is the main function of the RuBisCO enzyme in photosynthesis?
  • A. To produce ATP
  • B. To fix carbon dioxide
  • C. To split water
  • D. To generate NADPH
Q. What is the main function of the skeletal system in vertebrates?
  • A. Production of hormones
  • B. Support and protection
  • C. Digestion of food
  • D. Respiration
Q. What is the main function of the stomach?
  • A. Absorption of nutrients
  • B. Mechanical and chemical digestion
  • C. Storage of bile
  • D. Production of insulin
Q. What is the main function of the thylakoid membrane?
  • A. Storage of glucose
  • B. Light absorption
  • C. Carbon fixation
  • D. Water splitting
Q. What is the main function of the xylem in vascular plants?
  • A. Transport of sugars
  • B. Transport of water and minerals
  • C. Photosynthesis
  • D. Storage of nutrients
Q. What is the main function of xylem in vascular plants?
  • A. Transport of nutrients
  • B. Transport of water
  • C. Photosynthesis
  • D. Storage of food
Q. What is the main gas transported by hemoglobin in red blood cells?
  • A. Carbon dioxide
  • B. Oxygen
  • C. Nitrogen
  • D. Hydrogen
Q. What is the main goal of phytoremediation?
  • A. To enhance plant growth
  • B. To clean up contaminated environments
  • C. To increase crop yield
  • D. To improve soil fertility
Q. What is the main goal of synthetic biology?
  • A. To understand natural biological systems
  • B. To create new biological parts and systems
  • C. To clone animals
  • D. To sequence genomes
Q. What is the main health benefit of consuming omega-3 fatty acids found in certain plants?
  • A. Improved digestion
  • B. Heart health
  • C. Bone strength
  • D. Skin hydration
Q. What is the main mode of transmission for the influenza virus?
  • A. Vector-borne
  • B. Airborne
  • C. Direct contact
  • D. Fecal-oral
Q. What is the main outcome of gene expression?
  • A. DNA replication
  • B. Protein synthesis
  • C. RNA degradation
  • D. Cell division
Q. What is the main product of the Calvin cycle?
  • A. Oxygen
  • B. ATP
  • C. Glucose
  • D. NADPH
Q. What is the main product of the light-dependent reactions of photosynthesis?
  • A. Glucose
  • B. Oxygen
  • C. NADPH
  • D. ATP
Q. What is the main purpose of a booster vaccine?
  • A. To initiate the immune response
  • B. To enhance the immune memory
  • C. To provide immediate protection
  • D. To replace the primary vaccine
Q. What is the main purpose of cloning in biotechnology?
  • A. To create genetically identical copies of an organism
  • B. To sequence the entire genome
  • C. To mutate genes
  • D. To analyze gene expression
Q. What is the main purpose of meristematic tissue in plants?
  • A. Storage of food
  • B. Growth and development
  • C. Transport of water
  • D. Photosynthesis
Q. What is the main purpose of photosynthesis?
  • A. To produce oxygen
  • B. To convert solar energy into chemical energy
  • C. To absorb nutrients
  • D. To release carbon dioxide
Q. What is the main purpose of plant reproduction?
  • A. Growth
  • B. Survival
  • C. Genetic diversity
  • D. Photosynthesis
Q. What is the main purpose of plant transpiration?
  • A. Nutrient storage
  • B. Water regulation
  • C. Photosynthesis
  • D. Seed dispersal
Q. What is the main purpose of plant tropisms?
  • A. Reproduction
  • B. Growth direction
  • C. Nutrient uptake
  • D. Water conservation
Q. What is the main purpose of the Calvin cycle in photosynthesis?
  • A. To produce ATP
  • B. To fix carbon dioxide
  • C. To generate oxygen
  • D. To absorb light energy
Q. What is the main purpose of the Calvin cycle?
  • A. To absorb light
  • B. To produce ATP
  • C. To fix carbon dioxide
  • D. To release oxygen
Q. What is the main purpose of the circulatory system in animals?
  • A. Transport nutrients and oxygen
  • B. Regulate body temperature
  • C. Facilitate movement
  • D. Produce hormones
Q. What is the main purpose of the circulatory system?
  • A. To produce hormones
  • B. To transport blood and nutrients
  • C. To facilitate digestion
  • D. To provide structural support
Q. What is the main purpose of the complement system in immunity?
  • A. To produce antibodies
  • B. To enhance inflammation and opsonization
  • C. To directly kill pathogens
  • D. To activate T cells
Q. What is the main purpose of the complement system?
  • A. To produce antibodies
  • B. To enhance phagocytosis and lyse pathogens
  • C. To activate T cells
  • D. To produce cytokines
Q. What is the main purpose of the coronary arteries?
  • A. To supply blood to the lungs
  • B. To supply blood to the heart muscle
  • C. To drain blood from the heart
  • D. To regulate heart rhythm
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