Biology (School & UG)

Q. What is the primary benefit of consuming antioxidants from plant sources?
  • A. Increased energy
  • B. Improved digestion
  • C. Reduced oxidative stress
  • D. Enhanced growth
Q. What is the primary benefit of consuming dietary fiber from plants?
  • A. Increased protein intake
  • B. Improved digestive health
  • C. Enhanced taste
  • D. Higher fat content
Q. What is the primary benefit of consuming omega-3 fatty acids from plant sources?
  • A. Improved digestion
  • B. Heart health
  • C. Bone strength
  • D. Skin hydration
Q. What is the primary benefit of using nitrogen-fixing bacteria in agriculture?
  • A. They increase soil acidity
  • B. They enhance soil structure
  • C. They provide a natural source of nitrogen
  • D. They promote plant disease resistance
Q. What is the primary characteristic that defines the Animal Kingdom?
  • A. Photosynthesis
  • B. Multicellularity
  • C. Cell wall presence
  • D. Autotrophic nutrition
Q. What is the primary characteristic that distinguishes angiosperms from gymnosperms?
  • A. Presence of seeds
  • B. Presence of flowers
  • C. Presence of vascular tissue
  • D. Presence of chlorophyll
Q. What is the primary classification rank in the plant kingdom?
  • A. Species
  • B. Genus
  • C. Family
  • D. Kingdom
Q. What is the primary component of the heart's conduction system that follows the SA node?
  • A. Atrioventricular (AV) node
  • B. Bundle of His
  • C. Purkinje fibers
  • D. Coronary arteries
Q. What is the primary component of the respiratory system that filters and humidifies the air?
  • A. Lungs
  • B. Nasal cavity
  • C. Bronchi
  • D. Alveoli
Q. What is the primary criterion for classifying plants in the kingdom Plantae?
  • A. Presence of chlorophyll
  • B. Type of root system
  • C. Height of the plant
  • D. Color of the flowers
Q. What is the primary difference between disinfection and sterilization?
  • A. Disinfection kills all microorganisms, sterilization does not
  • B. Sterilization kills all microorganisms, disinfection does not
  • C. Disinfection is faster than sterilization
  • D. Sterilization is only for surgical instruments
Q. What is the primary disadvantage of using glutaraldehyde as a disinfectant?
  • A. It is ineffective against viruses
  • B. It requires long exposure times
  • C. It is corrosive to metals
  • D. It has a strong odor
Q. What is the primary disadvantage of using glutaraldehyde for disinfection?
  • A. It is ineffective against viruses
  • B. It requires long exposure times
  • C. It is corrosive to metals
  • D. It is not environmentally friendly
Q. What is the primary driver of adaptive evolution in plants?
  • A. Genetic drift
  • B. Natural selection
  • C. Gene flow
  • D. Mutation
Q. What is the primary driving force for the movement of water in plants?
  • A. Root pressure
  • B. Capillary action
  • C. Transpiration pull
  • D. Soil moisture
Q. What is the primary evolutionary advantage of bilateral symmetry in animals?
  • A. Increased mobility
  • B. Better camouflage
  • C. Enhanced sensory perception
  • D. More efficient digestion
Q. What is the primary factor driving the evolution of plant morphology?
  • A. Climate change
  • B. Soil composition
  • C. Pollinator preferences
  • D. Competition for light
Q. What is the primary factor driving the evolution of plant traits?
  • A. Climate change
  • B. Human intervention
  • C. Environmental pressures
  • D. Soil composition
Q. What is the primary function of actinomycetes in soil?
  • A. Nitrogen fixation
  • B. Decomposition of organic matter
  • C. Photosynthesis
  • D. Pathogen resistance
Q. What is the primary function of antibodies in the immune response?
  • A. To directly kill pathogens
  • B. To neutralize toxins
  • C. To enhance phagocytosis
  • D. To activate complement system
Q. What is the primary function of antioxidants found in fruits and vegetables?
  • A. Increase growth rate
  • B. Protect against cellular damage
  • C. Enhance color
  • D. Aid in photosynthesis
Q. What is the primary function of auxins in plant development?
  • A. Promote flowering
  • B. Stimulate root growth
  • C. Regulate fruit ripening
  • D. Inhibit leaf abscission
Q. What is the primary function of B cells in the immune response?
  • A. Phagocytosis of pathogens
  • B. Production of antibodies
  • C. Activation of T cells
  • D. Release of cytokines
Q. What is the primary function of bile in digestion?
  • A. Break down proteins
  • B. Emulsify fats
  • C. Neutralize stomach acid
  • D. Absorb vitamins
Q. What is the primary function of chlorophyll in plants?
  • A. Water absorption
  • B. Nutrient transport
  • C. Photosynthesis
  • D. Respiration
Q. What is the primary function of chloroplasts in plant cells?
  • A. Energy production
  • B. Photosynthesis
  • C. Cell division
  • D. Protein synthesis
Q. What is the primary function of collenchyma cells?
  • A. Transport nutrients
  • B. Provide flexible support
  • C. Store water
  • D. Conduct photosynthesis
Q. What is the primary function of cytokinins in plants?
  • A. Promote cell division
  • B. Inhibit aging
  • C. Stimulate root growth
  • D. Enhance photosynthesis
Q. What is the primary function of DNA in plant cells?
  • A. Energy production
  • B. Protein synthesis
  • C. Genetic information storage
  • D. Photosynthesis
Q. What is the primary function of essential oils derived from plants in human health?
  • A. Nutrient absorption
  • B. Aromatherapy and relaxation
  • C. Photosynthesis
  • D. Water storage
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