MCQ
Plant fibres can originate from
- ✓Phloem, xylem, epidermis and sclerenchyma tissues
- BPhloem, xylem and sclerenchyma tissues
- CPhloem, xylem and epidermis tissues
- DXylem, epidermis and sclerenchyma tissues
✓
Answer
Correct option: A.
Phloem, xylem, epidermis and sclerenchyma tissues
a
It’s obvious.
It’s obvious.
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
Which one of the following pairs of terms/names mean one and the same thing
The binomial nomenclature laid the foundation of
One turn of $DNA$ possesses
→Which of the following statements are true regarding factors affecting growth ?
(i) Necessary conditions for growth - Water, oxygen and nutrients.
(ii) The plant cells grow in size by cell enlargement which in turn requires water.
(iii) Turgidity of cells helps in extension growth.
(iv) Plant growth and further development is intimately linked to the water status of the plant.
(v) Water also provides the medium for enzymatic activities needed for growth.
(vi) Oxygen helps in releasing metabolic energy essential for growth activities.
(vii) Nutrients (macro and micro essential elements) are required by plants for the synthesis of protoplasm and act as source of energy.
(i) Necessary conditions for growth - Water, oxygen and nutrients.
(ii) The plant cells grow in size by cell enlargement which in turn requires water.
(iii) Turgidity of cells helps in extension growth.
(iv) Plant growth and further development is intimately linked to the water status of the plant.
(v) Water also provides the medium for enzymatic activities needed for growth.
(vi) Oxygen helps in releasing metabolic energy essential for growth activities.
(vii) Nutrients (macro and micro essential elements) are required by plants for the synthesis of protoplasm and act as source of energy.
It is true for animal kingdom but not true for fungi
Cycas has two cotyledons but is not included under angiosperms because it has
The first product of $CO_2$ fixation in Hatch and Slack ($C_4$) cycle in plants is
→The following diagram represents a structure chromosome. Identify the structures marked as $A , B$ and $C .$
→Identify in order, the plants showing alternate, opposite and whorlled phyllotaxy
$A$ : Transgenic mice are being used to test the safety of the polio vaccine.
→$R$ : It could replace the use of monkeys to test the safety of batches of the vaccine.