Revision DPP - 20-Dec-24

1.

In humans, at the end of the first meiotic division, the male germ cells differentiate into
the
1. primary spermatocytes
2. secondary spermatocytes
3. spermatids
4. spermatogonia

2.

Which of the following is not involved in the sexual cycle of fungi?

1.	Plasmogamy	2.	Meiosis
3.	Mitosis	4.	Karyogamy

3.

Which of the following order is not correct for the events of human reproduction?

1.	Gametogenesis- Insemination- Fertilization
2.	Fertilization-Insemination- Gametogenesis
3.	Implantation-Gestation-Parturition
4.	Insemination-Fertilization- implantation

4.

The semilunar valves will open during a normal cardiac cycle when the pressure in the left ventricle is
1. greater than the pressure in the aorta.
2. less than the pressure in the aorta.
3. the same as the pressure in the aorat.
4. less than the pressure in the left atrium.

5.

Which one of the following shows isogamy with non-flagellated gametes?
1. Ectocarpus
2. Ulothrix
3. Sargassum
4. Spirogyra

6.

Which one of the following can be used to differentiate between kingdoms of living organisms that include multicellular organisms in Whittaker’s five kingdom classification?
1. Nuclear membrane
2. Cell type
3. Body organisation
4. Cell wall

7.

When the temperature of a reaction increases from 300 K to 310 K, the rate of the reaction doubles. What is the activation energy for this reaction?
$(R=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1} \text { and } \log 2=0.301)$

1.	$53.6 \mathrm{~kJ} \mathrm{~mol}^{-1} $	2.	$68.6 \mathrm{~kJ} \mathrm{~mol}^{-1} $
3.	$59.5 \mathrm{~kJ} \mathrm{~mol}^{-1} $	4.	$70.5 \mathrm{~kJ} \mathrm{~mol}^{-1}$

8.

Arrested stage called Primary oocyte is formed

(1) During foetal Growth
(2) At the time of birth
(3) At Puberty
(4) At Menarche

9.

Which of the given scientific name is written, as mentioned in the rules of binomial nomenclature?

1.	Rosa Indica Linn.
2.	Rosa Indica Linnaeus
3.	Rosa Indica L.
4.	Rosa Indica Linn.

10.

Which of the following cells completes the first meiotic division leading to formation of two equal haploid cellls?
1.Spermatogonium
2.Primary spermatocyte
3.Secondary spermatocyte
4.Spermatid

11.

Match the following

	Column l		Column lI
a.	Telocentric chromosomes	i.	V-shaped
b.	Acrocentric chromosomes	ii.	L-shaped
c.	Submetacentric chromosomes	iii.	J-shaped
d.	Metacentric chromosomes	iv	l-shaped

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

12.

Choose the correct from the followings:-

1.	Mangifera, is a name of species
2.	Polymoniales, is a name of family
3.	Dicotyledonae, is a name of division
4.	Triticum, is a name of genus

13.

Vacuole in a plant cell :
1. Is membrane bounded and contain stored proteins and lipids only
2. Lacks membrane and contain water and excretory substances
3. Lacks membrane and contain air
4. Is membrane bounded and contain water and excretory substances

14.

Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external inter-costal muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases

1.	(c) and (d)	2.	(a), (b) and (d)
3.	only (d)	4.	(a) and (b)

15.

A protoplast is a cell
1. undergoing division
2. without cell wall
3. without plasma membrane
4. without nucleus.

16.

Taxonomy deals with

1.	Development of zoological parks
2.	Study of kinds and diversity of microorganisms only
3.	Evolutionary relationships between organisms
4.	Classification of diverse organisms in different taxa

17.

What is the Raoult’s law expression for NaCl (s) and H₂O (l) mixture?

1. p = $x_{1} p_{1}^{0}$
2. p = $(p_{_{1}}^{0} - p_{2}^{0}) x_{1} + p_{2}^{0}$
3. p = $(p_{_{1}}^{0} - p_{2}^{0}) x_{1} + p_{1}^{0}$
4. none of these

18.

Which is not a feature with respect to given diagram of
mitochondria (as indicated in diagram)?

1.	A $\to$ Continuous limiting boundary.
2.	B $\to$ Forms number of infolding called cisternae.
3.	A & B $\to$ Both having own specific enzyme.
4.	C $\to$ Site of Krebs’ cycle.

19.

When a particle is moving with constant acceleration along a straight line, its speed:
1. must be increasing.
2. must be decreasing.
3. maybe increasing or decreasing.
4. must be constant.

20.

For a reaction A $\to$ B, enthalpy of reaction is $- 4.2$ $kJ {mol}^{- 1}$ and enthalpy of activation is $9.6$ $kJ {mol}^{- 1}$ . The correct potential energy profile for the reaction is:

1.		2.
3.		4.

21.

Which statement about the following eukaryotic organelles and their roles is FALSE?

1.	Smooth endoplasmic reticulum is involved in phospholipid synthesis.
2.	The nucleolus is involved in ribosome synthesis.
3.	Ribosomes are involved in translation.
4.	Rough endoplasmic reticulum is involved in transcription.

22.

Which statement about taxonomic relationships is CORRECT?
1. A class can contain more than one phylum.
2. A genus can contain more than one order.
3. A family can contain more than one class.
4. An order can contain more than one family.
5. A genus can contain more than one family

23.

The presence of fluid filled antrum is a characteristic feature of

1.	Secondary follicle	2.	Primary follicle
3.	Tertiary follicle	4.	Corpus luteum

24. The solubility of H₂S in water at STP is 0.195 m, The value of Henry’s law constant will be:

1.	274 atm	2.	285 atm
3.	295 atm	4.	278 atm

25. Organisms belonging to the same Class in taxonomic hierarchy must also belong to the same:

1.	Order	2.	Family
3.	Genus	4.	Phylum

26. Choose the correct option from the following statements.

I:	Apomixis is form of asexual reproduction that mimics sexual reproduction.
II:	In Apomictic seeds develop either from diploid egg cell or from cells of nucellus.
III:	Seeds collected from hybrids plant maintain hybrid character for a long times.
IV:	In Apomixis, there is segregation of characters.

1. All are correct
2. All are incorrect
3. Only I and II are correct
4. only II, IV are correct

27. Match the column I with column II and mark the appropriate choice

	Column I (Prefixes)		Column II (Multiples)
(A)	$K_b$	(i)	${K_b \times W_2 \times 1000 \over \Delta T_b \times W_1}$
(B)	$M_2$	(ii)	${ W_2 \times 1000 \over M_2\times W_1}$
(C)	$\pi$	(iii)	${ RT^{o2}_b\over 1000\times L_V}$
(D)	m	(iv)	${ \Delta T_b \times dRT\over 1000 \times K_b}$

1. (A) →(i), (B)→(iii), (C) →(ii), (D)→ (iv)
2. (A) →(iv), (B)→(ii), (C) →(i), (D)→ (iii)
3. (A) →(ii), (B)→(iv), (C) →(iii), (D)→ (i)
4. (A) →(iii), (B)→(i), (C) →(iv), (D)→ (ii)

28. Consider the given two statements:

Statement I:	A primary spermatocyte completes the first meiotic division (reduction division) leading to formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each.
Statement II:	The secondary spermatocytes undergo the second meiotic division to produce four equal, haploid spermatids, which have 23 chromosomes each.

1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect

29. What would be correct for the stage of embryonic development and the day of the menstrual
cycle at which implantation is most likely to take place?
1. Fertilized egg; Day 15
2. Morula; Day 18
3. Blastocyst; Day 22
4. Gastrula; Day 29

30.

A chromosome where the centromere is situated close to the end forming one extremely short and one very long arm is called as

1.	Metacentric	2.	Submetacentric
3.	Acrocentric	4.	Telocentric.

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1.	\(53.6 \mathrm{~kJ} \mathrm{~mol}^{-1} \)	2.	\(68.6 \mathrm{~kJ} \mathrm{~mol}^{-1} \)
3.	\(59.5 \mathrm{~kJ} \mathrm{~mol}^{-1} \)	4.	\(70.5 \mathrm{~kJ} \mathrm{~mol}^{-1}\)

	Column I (Prefixes)		Column II (Multiples)
(A)	\(K_b\)	(i)	\({K_b \times W_2 \times 1000 \over \Delta T_b \times W_1}\)
(B)	\(M_2\)	(ii)	\({ W_2 \times 1000 \over M_2\times W_1}\)
(C)	\(\pi\)	(iii)	\({ RT^{o2}_b\over 1000\times L_V}\)
(D)	m	(iv)	\({ \Delta T_b \times dRT\over 1000 \times K_b}\)

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