Chlorophyll present in red algae is
1. | a, d | 2. | a, b |
3. | a, c | 4. | b, c |
The green alga rich in proteins used as food supplements even by space travelers is
1. Chlorella
2. Scendesmus
3. Porphyra
4. Carrageen
The world's tallest (angiosperm) flowering tree is
(1) Sequoia
(2) Eucalyptus
(3) Pinus
(4) Cedrus
The most primitive among the living vascular plants are the
1. | ferns | 2. | brown algae |
3. | mosses | 4. | cycads |
Non flowering plants are included under
(1) cryptogamae
(2) phanerogamae
(3) angiosperms
(4) Both a and b
Roots of higher plants show symbiosis with mycorrhiizas for obtaining
1. | sulphates | 2. | nitrogen |
3. | phosphates | 4. | All of these |
Porous wood has abundance of
1. | vessels | 2. | fibres only |
3. | tracheids | 4. | sieve tubes |
Shape of chloroplast present in Ulothrix is
(1) cup shaped
(2) girdle shaped
(3) star shaped
(4) diffused type
The wood of Pinus is
(1) manoxylic
(2) polyxylic
(3) pycnoxylic
(4) manoxylic and pycnoxylic
This plant is used as a packing material and also forms an excellent fodder for feeding cattle.
(1) Medicago
(2) Pongamia
(3) Cratolaria
(4) All of these