MCQ
In flowering plants, the main water transporting elements are
- ATracheids
- BVessels
- CFibres
- ✓Both ($a$) and ($b$)
✓
Answer
Correct option: D.
Both ($a$) and ($b$)
d
Tracheids are elongated or tube like cells with thick and lignified walls and tapering ends. These are dead and are without protoplasm. The inner layers of the cell walls have thickenings which vary in form. In flowering plants, tracheids and vessels are the main water transporting elements
Tracheids are elongated or tube like cells with thick and lignified walls and tapering ends. These are dead and are without protoplasm. The inner layers of the cell walls have thickenings which vary in form. In flowering plants, tracheids and vessels are the main water transporting elements
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Polydelphous stamen found in .............
Which of the following statement are wrong for lipid ?
(i) Lipids are generally water insoluble.
(ii) They could be simple fatty acids.
(iii) Another simple lipid is glycerol which is trihydroxy propane.
(iv) Many lipids have both glycerol and fatty acids.
(v) These are also called fats and oils based on melting point.
(i) Lipids are generally water insoluble.
(ii) They could be simple fatty acids.
(iii) Another simple lipid is glycerol which is trihydroxy propane.
(iv) Many lipids have both glycerol and fatty acids.
(v) These are also called fats and oils based on melting point.
Specialised parenchyma cells which store tannins, oils and crystals of calcium oxalate are called
Growth rings $(annual\ rings)$ are formed by activity of
→The pyramid of number is based on
Identify labelled part $'X'$ from the figure :
→When a rat was placed into a closed container, it got suffocated and died but when a plant was also introduced into it, the rat survived. Who performed this experiment
Choose correct sentence.
→$(I)$ Nucleus of the functional megaspore divides meiotically to form two nuclei.
$(II)$ After $8$ nucleate stage, cell walls are laid down leading to organization of typical female gametophyte
$(III)$ The egg apparatus, consists of two synergids and one egg cell.
$(IV)$ Three cells are at the chalaza end are called antipodal cells.
Which of the following biomolecules does have a phosphodiester bond ?
Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, Withania, potato, onion, aloe and tulip how many plants have hypogynous flower?