F.Y.B.Sc
Botany Paper II
Q.P. Code:
75SZO!
Dated: Z3-tl-2016
Q.1 (A) Choose correct options (1 mark each)
Answers:-
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(a) grana
(b) Celt walt
[c) Ca-pectate
[d) Tansley
(e) aquatic
(f)
LUo/o
(g) back cross
(h) 2
[i) 15:1
Q)
S0o/o
Q.1 (B) Answer in one sentence (2 marks each)
i.
ii.
iii'
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Endoplasmic reticulum: protein folding & transport
Heredity: transmission of characters from parents to next generation
Trophic level: any class of organisms that occupy the same position
in
chain, as primary consumers, secondary consumers,
and tertiary
a
food
consumers.
iv' Mitosis:
type of cell division that results in two daughter cells each
having the
same number and kind of chromosomes as the parent
nucleus occurs in somatic
cell, typical of ordinary tissue growth.
a
v' Producer: An autotrophic
organism that serves as a source of food for other
organisms in a food chain. Producers include green plants,
which produce food
through photosynthesis, and certain bacteria that are
capable of photosynthesis.
Q.2 Answer the
following
FluidmosaicmodelofPlasmamembrane
o Description (6M)
o Labelled diagram (4M)
b) Chloroplast
. Description (4 M)
o Function at least 6 (3M)
o Labelled diagram (3M)
c) Plant Cell
o Structure & cell organelles (7 M)
o Labelled diagram (3M)
d) Cell membrane
o Description of any 1 model (7M)
o Labelled diagram (3M)
a)
Q.3 Answer the
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following
EstuarineEcosYstem
o Definition and location (3M)
o components (7M)
b) Ecological PYramid
o Definition and concept (2M)
o Description of 3 type with diagrams (8M)
c) Laws of thermodYnamics
o lst law with explanation with respect to ecosystem (5M)
. zad law with explanation with respect to ecosystem (5M)
d) FoodchainandtYPes
o Definition and concept (3M)
o Types with schematic representation and description (7M)
a)
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Q.4 Answer the
following
a) Epistatis, recessive epistasis with
r
o
Example with F1 and F2 crosses and ratio (gM)
assortment
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Mendel's 3d Law (2M)
Example with F1 and F2 crosses and ratio (gM)
c) Gene interaction with example comb
o
.
pattern
Example with Fl and F2 crosses and ratio (gM)
epistasis
o
Data
"
.
(i) - Crosses with progeny, ratio, genotype and phenotypes (4M)
(ii) - Crosses with progeny, ratio, genotype and phenotypes (aM)
10M
writing (2M)
Q.5 Short notes (any
four - SM each)
Plasmodesmata & function
o
..
ii.
lOM
Definition (2M)
d) Problem based on
i.
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Definition (ZM)
b) Independent
.
.
example
Description - 3M,
Functions
-2M
Phagorytosis
.
o
Description
-
3M,
Diagram - 2M
iii. Forestecosystem
.
.
Description - 3M,
example-2M
iv. Upright energy flow model
o
o
Description - 3M,
Diagram - 2M
v. Codominance
o Description - 3M,
. Example -2M
20M
Vi. Intermediate inheritance
o
Description - 3M,
.
Example - 2M
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