|
Questions
|
Answers
|
|
|
Part 1-Section A(Botany)
|
|
|
1) Diatomaceous Earth is indestructible due to cell walls embedded by-
|
2) Silica
|
|
|
2) Identify the secondary metabolite
|
4) Rubber
|
|
|
3) The stage between meiosis-I and meiosis-II is__________
|
|
|
|
4) ___________is the major limiting factor for photosynthesis
|
CO2 concentration
|
|
|
5) In glucose, how many carbon molecules are present?
|
6
|
|
|
Section-B
|
|
|
6) Give the main criteria used for the classification of Whittaker
|
Cell structure, body organization, mode of nutrition, reproduction, and phylogenetic relationships.
|
|
|
7) Differentiate an actinomorphic from a zygomorphic flower
|
Actinomorphic: Radial symmetry (e.g., Mustard). Zygomorphic: Bilateral symmetry (e.g., Pea).
|
|
|
8) What is meant by parthenocarpic fruit?
|
Parthenocarpic fruit is a fruit that develops without fertilization, so it does not contain seeds.
Example: Banana, seedless grapes.
|
|
|
9) What is the middle lamella made of? What is its functional significance?
|
Made of Calcium pectate. It acts as a cementing layer between neighbouring plant cells.
|
|
|
10) Starch, cellulose, glycogen, and chitin are polysaccharides found among the following:
a) cotton fibre
b) exoskeleton of a cockroach
c) liver
d)peeled potato
|
(a) Cellulose, (b) Chitin, (c) Glycogen, (d) Starch.
|
|
|
11) Processes in the grana and stroma regions of the chloroplast.
|
Grana: Light Reaction. Stroma: Dark Reaction (Calvin Cycle).
|
|
|
12) What is apical dominance? Name the growth hormone.
|
Growth of the apical bud inhibits lateral buds. Caused by Auxin.
|
|
|
Section-C
|
|
|
13) Differentiate between red algae and brown algae
|
red algae: phycoerythrin pigment, found in deep marine water, smaller in size
brown algae: brown in color due to fucoxanthin pigment, found in shallow marine waters, larger in size
|
|
|
14) Explain types of phyllotaxy with examples
|
Alternate: China rose, mustard
Opposite: Guava, calotropis
Whorled: Alstonia, Nerium
|
|
|
15) Classify chromosomes based on centromere location
|
Metacentric (middle), Sub-metacentric (off-centre), Acrocentric (near end), Telocentric (terminal).
|
|
|
16) In which phase of meiosis are the following formed
|
(a)-iii, (b)-v, (c)-i, (d)-vi, (e)-ii, (f)-iv.
|
|
|
17) Differentiate between C3 and C4 plants.
|
C3: 3-PGA is the first product, no Kranz anatomy. C4: OAA is the first product that has Kranz anatomy.
|
|
|
18) Physiological responses of gibberellins in plants.
|
Stem elongation (bolting), malt production, and delaying senescence.
|
|
|
Part II Section E-Zoology
|
|
21) Biological names are printed in -
|
(3) italics
|
|
22) Which of the following is a pseudocoelomate?
|
(3) Ascaris
|
|
23) _________is known as graveyard of RBC.
|
Spleen
|
|
24) Process of releasing urine from the bladder.
|
Micturition
|
POST YOUR COMMENT