Sweet potato is a modified
(1) Stem
(2) Adventitious root
(3) Tap root
(4) Rhizome

Which of the following statement is correct ?
(1) Ovules are not enclosed by ovary wall in
gymnosperms
(2) Selaginella is heterosporous, while Salvinia is
homosporous
(3) Horsetails are gymnosperms
(4) Stems are usually unbranched in both Cycas
and Cedrus

Select the wrong statement :
(1) Cell wall is present in members of
Fungi and Plantae
(2) Mushrooms belong to Basidiomycetes
(3) Pseudopodia are locomotory and feeding
structures in Sporozoans
(4) Mitochondria are the powerhouse of the cell
in all kingdoms except Monera

Casparian strips occur in
(1) Epidermis
(2) Pericycle
(3) Cortex
(4) Endodermis

Plants having little or no secondary growth are
(1) Grasses
(2) Deciduous angiosperms
(3) Conifers
(4) Cycads

Which one is wrongly matched ?
(1) Uniflagellate gametes - Polysiphonia
(2) Biflagellate zoospores - Brown algae
(3) Gemma cups - Marchantia
(4) Unicellular organism - Chlorella

Column-I	Column-II
(a) Herbarium	i. It is a place having a collection of preserved plants and animals.
(b) Key	ii. A list that enumerates methodically all the species found in an area with brief description aiding identification.
(c) Museum	iii.Is a place where dried and pressed plant specimens mounted on sheets are kept.
(d) Catalogue	iv. A booklet containing a list of characters and their alternates which are helpful in identification of varioustaxa.

a b c d
(1) i iv iii ii
(2) iii ii i iv
(3) ii iv iii i
(4) iii iv i ii

Winged pollen grains are present in
(1) Mustard
(2) Cycas
(3) Mango
(4) Pinus

After karyogamy followed by meiosis,
spores are produced exogenously in
(1) Neurospora
(2) Alternaria
(3) Agaricus
(4) Saccharomyces

What is the role of ``NAD^+ `` in cellular respiration ?
(1) It functions as an enzymes
(2) It functions as an electron carrier
(3) It is a nucleotide source for ATP synthesis
(4) It is the final electron acceptor for
anaerobic respiration

Oxygen is not produced during photosynthesis by
(1) Green sulphur bacteria
(2) Nostoc
(3) Cycas
(4) Chara

Pollen grains can be stored for several years in liquid
nitrogen having a temperature of
(1) -120°C
(2) -80°C
(3) -196°C
(4) -160°C

In which of the following forms is iron absorbed
by plants ?
(1) Ferric
(2) Ferrous
(3) Free element
(4) Both ferric and ferrous

Double fertilization is
(1) Fusion of two male gametes of a pollen tube
with two different eggs
(2) Fusion of one male gamete with two polar
nuclei
(3) Fusion of two male gametes with one egg
(4) Syngamy and triple fusion

Which of the following elements is responsible for
maintaining turgor in cells ?
(1) Magnesium
(2) Sodium
(3) Potassium
(4) Calcium