Ahsec Class 11 Biology Solved Question Paper - 2025| ASSEB BOARD
2025
BIOLOGY
Full Marks: 70
Pass Marks: 21
Time: 3 hours
The figures in the margin indicate full
marks for the questions
PART – A
Choose the correct answer: 1x35=35
(Botany)
1. The binomial naming system was proposed by
(a) Charles
Darwin
(b) Robert
Hooke
(c) Antonie
van Leeuwenhoek
(d) Carolus Linnaeus
Ans:- (d) Carolus Linnaeus
2. The biological concept of species is mainly based on
(a)
morphology and method of reproduction
(b) method of
reproduction only
(c) morphological
feature only
(d)
reproductive isolation
Ans:- (d) reproductive isolation
3. The cell wall of bacteria contains
(a) protein
(b) chitin
(c) cellulose
(d)
peptidoglycan
Ans:- (d) peptidoglycan
4. ‘Mad cow’ disease in cattle is caused by
(a) bacteria
(b) fungi
(c) amoeba
(d) prions
Ans:- (d) prions
5. Five-kingdom system presented by Whittaker is not based
on
(a) presence
or absence of well-defined nucleus
(b) mode of
nutrition
(c) complexity
of body organization
(d) Both (b)
and (c)
Ans:- (c) complexity of body
organization
6. The major pigments in green algae are
(a)
chlorophyll a, b
(b) chlorophyll
a, c, fucoxanthin
(c)
chlorophyll a, b phycoerythrin
(d)
fucoxanthin, phycoerythrin
Ans:- (a) chlorophyll a, b
7. Which of the following are also regarded as the
amphibians of the plant kingdom?
(a) Algae
(b) Bryophytes
(c)
Pteridophytes
(d)
Gymnosperms
Ans:- (b) Bryophytes
8. Strobili or cones are found in
(a) Salvinia
(b)
Marchantia
(c) Pteris
(d) Equisetum
Ans:- (d) Equisetum
9. In brinjal, the ovary is
(a) inferior
(b) half-inferior
(c) superior
(d) None of
the above
Ans:- (c) superior
10. The roots that originate from the base of the stem
are
(a) fibrous
roots
(b) primary
roots
(c) prop
roots
(d) lateral
roots
Ans:- (a) fibrous roots
11. In plants, secondary growth in thickness is due to
the activity of
(a) cambium
(b) pith
(c) xylem
(d) phloem
Ans:- (a) cambium
12. The tissue that carries out photosynthesis is
(a) epidermis
(b) mesophyll
(c) vascular
tissue
(d) Both (a)
and (c)
Ans:- (b) mesophyll
13. A plant cell usually differs from an animal cell in
the absence of
(a) ribosome
(b) centriole
(c)
endoplasmic reticulum
(d)
mitochondria
Ans:- (b) centriole
14. Which of the following statements is true about
endoplasmic reticulum?
(a) Smooth endoplasmic
reticulum makes lipids.
(b) It is
also called the control centre of the cell.
(c) It
possesses carbohydrates.
(d) It modifies
chemicals that are toxic to the cell.
Ans:- (a) Smooth endoplasmic
reticulum makes lipids.
15. Tyrosine, tryptophan, phenylalanine are
(a) acidic
amino acid
(b) basic
amino acid
(c) neutral
amino acid
(d) aromatic
amino acid
Ans:- (d) aromatic amino acid
16. Some dividing cells exit the cell cycle and enter a
vegetative inactive stage. This is called quiescent stage (G0). This
process occurs at the end of
(a) M phase
(b) G1
phase
(c) S phase
(d) G2
phase
Ans:- (b) G1 phase
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