Monday, November 18, 2024

MCQ Biology Chapter 6: ANATOMY OF FLOWERING PLANTS, HS 1st year

 

  1. What is the study of the internal structure of plants called?
    a) Morphology
    b) Anatomy
    c) Physiology
    d) Ecology
    Answer: b) Anatomy

  2. Which tissue system forms the outermost covering of the plant body?
    a) Vascular tissue system
    b) Epidermal tissue system
    c) Ground tissue system
    d) Fundamental tissue system
    Answer: b) Epidermal tissue system

  3. What is the function of the cuticle present on the epidermis?
    a) Absorption of water
    b) Protection against pests
    c) Prevention of water loss
    d) Gas exchange
    Answer: c) Prevention of water loss

  4. What type of vascular bundles are found in dicot stems?
    a) Conjoint and closed
    b) Radial and closed
    c) Conjoint and open
    d) Radial and open
    Answer: c) Conjoint and open

  5. In monocot roots, the number of xylem bundles is usually:
    a) Two to four
    b) Six or more
    c) Five
    d) One
    Answer: b) Six or more

  6. Which layer in dicot stems is referred to as the 'starch sheath'?
    a) Epidermis
    b) Pericycle
    c) Endodermis
    d) Cortex
    Answer: c) Endodermis

  7. What is the characteristic feature of bulliform cells in monocot leaves?
    a) They are responsible for photosynthesis.
    b) They minimize water loss by curling the leaves.
    c) They aid in the transport of nutrients.
    d) They provide mechanical support to leaves.
    Answer: b) They minimize water loss by curling the leaves.

  8. Which of the following is absent in the vascular bundles of monocot stems?
    a) Xylem
    b) Phloem
    c) Phloem parenchyma
    d) Bundle sheath
    Answer: c) Phloem parenchyma

  9. What structure is formed by the stomatal aperture, guard cells, and subsidiary cells?
    a) Stomatal apparatus
    b) Epidermal appendage
    c) Trichome
    d) Mesophyll
    Answer: a) Stomatal apparatus

  10. What is the main bulk of a plant formed by?
    a) Epidermal tissue
    b) Ground tissue system
    c) Vascular tissue system
    d) Cambium
    Answer: b) Ground tissue system

  1. What are the root hairs in plants?
    a) Multicellular projections from epidermal cells
    b) Unicellular elongations of epidermal cells
    c) Multicellular structures aiding transpiration
    d) Specialised cells for photosynthesis
    Answer: b) Unicellular elongations of epidermal cells

  2. Which of the following tissues is NOT a part of the ground tissue system?
    a) Parenchyma
    b) Collenchyma
    c) Sclerenchyma
    d) Xylem
    Answer: d) Xylem

  3. What type of vascular bundles are found in monocot stems?
    a) Conjoint and open
    b) Conjoint and closed
    c) Radial and closed
    d) Radial and open
    Answer: b) Conjoint and closed

  4. What is the main difference between monocot and dicot roots?
    a) Monocot roots lack endodermis.
    b) Dicot roots have polyarch vascular bundles.
    c) Monocot roots have polyarch vascular bundles.
    d) Dicot roots lack secondary growth.
    Answer: c) Monocot roots have polyarch vascular bundles.

  5. In the vascular bundle of a dicot stem, where is the phloem located?
    a) Inside the xylem
    b) Outside the xylem
    c) At the center of the bundle
    d) Surrounding the entire bundle
    Answer: b) Outside the xylem

  6. What type of venation is observed in monocot leaves?
    a) Reticulate venation
    b) Parallel venation
    c) Network venation
    d) Pinnate venation
    Answer: b) Parallel venation

  7. Which part of the plant exhibits secondary growth in dicots?
    a) Leaves
    b) Flowers
    c) Roots and stems
    d) Fruits
    Answer: c) Roots and stems

  8. In dorsiventral (dicotyledonous) leaves, the palisade parenchyma is located:
    a) In the lower epidermis
    b) Above the spongy parenchyma
    c) Between xylem and phloem
    d) Around vascular bundles
    Answer: b) Above the spongy parenchyma

  9. What is the function of casparian strips in the endodermis?
    a) Facilitate photosynthesis
    b) Allow free water movement
    c) Prevent water loss through epidermis
    d) Restrict passive flow of substances into the vascular cylinder
    Answer: d) Restrict passive flow of substances into the vascular cylinder

  10. Which of the following is a characteristic of isobilateral (monocotyledonous) leaves?
    a) Mesophyll is differentiated into palisade and spongy parenchyma.
    b) Stomata are present only on the abaxial epidermis.
    c) Bulliform cells help in water conservation.
    d) Venation is reticulate.
    Answer: c) Bulliform cells help in water conservation.


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