STD 11 - 3. Plant kingdom — NEET STD 11 Science — Question

Which of the following are not correct ?
(i) Oxygen helps in releasing metabolic energy essential for growth activities.
(ii) Nutrients are required by plants for the synthesis of protoplasm and act as source of energy.
(iii) Light and gravity affect certain stages of growth.
(iv) Water oxidizes glucose to provide energy
(v) Long day plants flower if the night length shorter than a critical period.
(vi) Short-day plants flower when night length exceeds a critical dark period.
(vii) The process of flowering does not occur in dayneutral plants.
(viii) 17,500 new cells are produced per hour by a single maize root apical meristem.
(ix) With the help of length, growth of pollen tube is measured.
(x) The growth of the leaf is measured in terms of volume.
(xi) Cells in a watermelon may increase in size by upto 3,50,000 times.
Choose the correct option given below :-

Fill in the blanks and choose the correct option given below.
(i) The plumule and radicle are enclosed in sheaths which are called A and B respectively in monocot.
(ii) In the floral formula, Br stands for bracteate, K stands for C and % for D nature of flower.
(iii) The position of the mother axis with respect to the E is represented by a dot on the top of the floral diagram.
(iv) F family was earlier called Papilionoideae, a subfamily of family Leguminosae.
(v) In Fabaceae, a posterior petal is called G, two lateral H and two anterior forming I .
(vi) Moong, Sesbania and soyabean belong to family J.
(vii) Solanaceae commonly called as the K family,
(viii) Floral family of Solanaceae is L.
(ix) In Fabaceae family petals shows M aestivation.
(x) Ashwagandha and Petunia belong to N family.
(xi) O is floral formula of liliaceae.
(xii) Liliaceae family show P placentation.
(xiii) Liliaceae family belong to Q plants.
(xiv) Asparagus and Colchicum belong to R family.

Which of the following important features are found in blue-green algae

Which phase of a sigmoid curve explains the initial phase of growth when growth rate is very slow?

The type of roots present in mustard plant is

Turgidity of cell help in

Select the correct pair.

Endosperm in Angiosperm is