Plant Growth and Development

Q. What is phototropism?
  • A. Growth towards light
  • B. Growth away from light
  • C. Growth in response to gravity
  • D. Growth in response to water
Q. What is the main function of the cambium in plants?
  • A. Photosynthesis
  • B. Water transport
  • C. Growth in thickness
  • D. Nutrient storage
Q. What is the primary function of root hairs?
  • A. Photosynthesis
  • B. Water absorption
  • C. Nutrient storage
  • D. Support
Q. What is the primary function of stomata in plants?
  • A. Nutrient storage
  • B. Gas exchange
  • C. Water storage
  • D. Support
Q. What is the primary function of the cambium in plants?
  • A. Photosynthesis
  • B. Water transport
  • C. Growth in thickness
  • D. Nutrient storage
Q. What is the primary hormone responsible for promoting cell elongation in plants?
  • A. Gibberellins
  • B. Auxins
  • C. Cytokinins
  • D. Ethylene
Q. What is the role of cytokinins in plant growth?
  • A. Promote root growth
  • B. Stimulate cell division
  • C. Inhibit leaf senescence
  • D. All of the above
Q. What is the role of mycorrhizae in plant growth?
  • A. Water storage
  • B. Nutrient absorption
  • C. Photosynthesis
  • D. Gas exchange
Q. What is the role of mycorrhizal fungi in plant growth?
  • A. Photosynthesis
  • B. Nutrient absorption
  • C. Water storage
  • D. Pollination
Q. What is the role of the apical meristem in plants?
  • A. Photosynthesis
  • B. Cell division and growth
  • C. Water absorption
  • D. Nutrient storage
Q. What is the term for the growth response of a plant to light?
  • A. Thigmotropism
  • B. Phototropism
  • C. Hydrotropism
  • D. Gravitropism
Q. What is the term for the process by which plants lose water vapor through small openings in their leaves?
  • A. Transpiration
  • B. Respiration
  • C. Photosynthesis
  • D. Germination
Q. Which environmental factor is most critical for seed germination?
  • A. Light
  • B. Temperature
  • C. Soil type
  • D. Humidity
Q. Which of the following is NOT a macronutrient essential for plant growth?
  • A. Nitrogen
  • B. Phosphorus
  • C. Potassium
  • D. Iron
Q. Which of the following is NOT a phase of plant growth?
  • A. Maturation
  • B. Germination
  • C. Juvenile
  • D. Reproductive
Q. Which phase of the plant life cycle is characterized by the formation of gametes?
  • A. Sporophyte
  • B. Gametophyte
  • C. Seedling
  • D. Mature plant
Q. Which plant structure is primarily responsible for anchoring the plant and absorbing water and nutrients?
  • A. Stem
  • B. Leaf
  • C. Root
  • D. Flower
Q. Which plant structure is primarily responsible for nutrient storage?
  • A. Roots
  • B. Leaves
  • C. Stems
  • D. Flowers
Q. Which plant structure is primarily responsible for reproduction?
  • A. Roots
  • B. Leaves
  • C. Flowers
  • D. Stems
Q. Which process involves the conversion of light energy into chemical energy in plants?
  • A. Respiration
  • B. Photosynthesis
  • C. Transpiration
  • D. Fermentation
Q. Which stage of the plant life cycle is characterized by the formation of gametes?
  • A. Sporophyte
  • B. Gametophyte
  • C. Seedling
  • D. Mature plant
Q. Which structure is responsible for the production of pollen in flowering plants?
  • A. Stigma
  • B. Anther
  • C. Ovary
  • D. Style
Q. Which type of plant growth occurs at the tips of roots and shoots?
  • A. Lateral growth
  • B. Primary growth
  • C. Secondary growth
  • D. Apical growth
Q. Which type of plant growth occurs in response to environmental stimuli?
  • A. Primary growth
  • B. Secondary growth
  • C. Tropic growth
  • D. Lateral growth
Q. Which type of plant is characterized by having a vascular system?
  • A. Mosses
  • B. Ferns
  • C. Liverworts
  • D. Algae
Q. Which type of plant reproduction involves the use of spores?
  • A. Asexual reproduction
  • B. Sexual reproduction
  • C. Vegetative reproduction
  • D. Grafting
Q. Which type of plant tissue is responsible for the transport of water and minerals?
  • A. Phloem
  • B. Xylem
  • C. Cortex
  • D. Pith
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