Home
Class 12
BIOLOGY
Go through the following statements (i...

Go through the following statements
(i) Phloem parenchya is absent in most of the monocot
(ii) Phloem fibres store food material and other substance like resins, latex and mucilage
(iii) Phloem fibre are generally absent in the primary phloem but are found in the secndary phloem
(iv) Gymnosperms lack sieve tubes and albuminous cells.
Which of these are correct ?

A

(i), (ii) and (iii)

B

(ii), (iii) and (iv)

C

(i) and (iii)

D

(i), (iii) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • AIPMT-2014(HUMAN PHYIOLOGY )

    TRUEMAN BIOLOGY|Exercise MCQs|19 Videos
  • Animal Kingdom

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|51 Videos

Similar Questions

Explore conceptually related problems

Go through the following statements (i) The cambium is generally more acitve on the inner side than on the outer. (ii) The autunn wood is darker and has a higher density than spring wood. (iii) In stem, the secondary xylem shows distinction into protoxylem and metxylem and occurs in the from of patches. (iv) The tracheids and vessels of the sapwood get plugged by the ingrowth of the adjacent parenchyma cells into thier cavities called tyloses. Which of theses are correct ?

Read the following statements (i) Collenchyma contains lignin in its wall thickenings. (ii) Collenchyma occurs in only aerial parimary parts and s absent from the roots. (iii) Trichomes are multicellular epidermal outgrowths, which also contain some inner tissues. (iv) Xylem fibres often occur in metaxylem while they are absent or rare in protoxylem. which of these are correct?

Knowledge Check

  • Read the following statements. (i) It has a sclerenchymatous hypodermis, a large number of scattered vascular bundles and a large parenchymatous ground tissue. (ii) Vascular bundles are conjoint and closed. (iii) Peripheral vascular bundles are generally smaller than the centrally located ones. (iv) Phloem parenchyma is absent, and water-containing cavities are present within the vascular bundles. Which anatomy of plant is being described by the above statements?

    A
    Docotyledonous root
    B
    Monocotyledonous root
    C
    Dicotyledonous stem
    D
    Monocotyledonous stem
  • Read the following statements. (i) It has a sclerenchymatous hypodermis, a large number of scattered vascular bundles and a large parenchymatous ground tissue. (ii) Vascular bundles are conjoint and closed. (iii) Peripheral vascular bundles are generally smaller than the centrally located ones. (iv) Phloem parenchyma is absent, and water-containing cavities are present within the vascular bundles. Which anatomy of plant is being described by the above statements?

    A
    Docotyledonous root
    B
    Monocotyledonous root
    C
    Dicotyledonous stem
    D
    Monocotyledonous stem
  • Arrange the following events in a correct order that explains the mass flow of materials in the phloem? (i) Water diffuses into the sieve tube elements. (ii) Leaf cells produce sugar by photosynthesis. (iii) Solutes are actively transported into the sieve elements. (iv) Sugar is transported from cell to cell in the leaf. (v) Sugar moves down the stem.

    A
    (ii) - (iv) - (iii) - (i) - (v)
    B
    (ii) - (iv) - (i) - (iii) - (v)
    C
    (i) - (ii) - (iii) - (iv) - (v)
    D
    (iv) - (ii) - (i) - (iii) - (v)
  • Similar Questions

    Explore conceptually related problems

    Go through the following statements (i) In geometric growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and mature. (ii) The ability of plants to follow different pathways in response to environment or phases of life to form different kinds of structures, is called plasticity. (iii) The mathematical expression for arithmetic growth is Lt = L_0 + rt while for geometric growth, it is W_1=W_0=W_(0)e^(rt) (iv) The form of growth wherein new cells are always being added to the plant body by the activity of the meristem, is called the open form of growth. Which of these are correct .

    Read the following matches regarding the elements and their deficiency symptoms in plants (i) Molybdenum - Brown heart of turnip (ii) Potassium - Plastid disintegration (iii) Magnesium - Underdeveloped phloem & pith (iv) Phosphorus - Delay in seedgermination Which of these are correct

    Go through the following matches {:((i),"Primary diocot stem",-"Sclerenchymatous hypodermis"),((ii),"Monocot stem",-"Parenchymatous pit"),((iii),"Dicot leaf",-"Parenchymatous pith"),((iv),"Monocot leaf",-"Bulliform cells"):} Which of the following is correct

    Arrange the following events in a correct order that explains the mass flow of materials in the phloem? (i) Water diffuses into the sieve tube elements. (ii) Leaf cells produce sugar by photosynthesis. (iii) Solutes are actively transported into the sieve elements. (iv) Sugar is transported from cell to cell in the leaf. (v) Sugar moves down the stem.