Multiple Choice QuestionsAssertion : Monocot stem bears collateral open vascular bundles.
Reason : If cambium is absent such vascular bundles are called closed type.
If both Assertion and Reason are true and Reason is the correct explantion of Assertion
If both Assertion and Reason are true and Reason is not the correct explanation of Assertion
If Assertion is true but Reason is false
If Assertion is false but Reason is true.
In a dicotyledonous stem, the sequence of tissues from the outside to the inside is
phellem - pericycle - endodermis - phloem
phellem - phloem - endodermis - pericycle
phellem - endodermis - pericycle - phloem
pericycle - phellem - endodermis - phloem
Plasmodesmata connections help in
cytoplasmic streaming
synchronous mitotic divisions
locomotion of unicellular organism
movement of substances between cells
Periderm includes
cork cambium only
cork cambium and cork
cork and secondary cortex
cork cambium, cork and secondary cortex
Largest number of chloroplast is found in :
palisade tissue
spongy tissue
transfusion tissue
bundle sheath cells
Assertion : Water and mineral uptake by root hairs from the soil occurs through apoplast until it reaches endodermis.
Reason : Casparian strips in endodermis are suberized
If both Assertion and Reason are true and the reason is the correct explanation of the assertion
If both Assertion and Reason are true but the reason is not the correct explanation of the assertion
If Assertion is true statement but Reason is false
If both Assertion and Reason are false statements
Velamen is a specialized tissue found in
aerial roots of orchids
succulent leaves
pneumatophores
stilt roots
The quiescent centre in root meristem serves as a
site for storage of food which is utilized during maturation
reservoir of growth hormones
reserve for replenishment of damaged cells of the meristem
region for absorption of water
