Haryana Public Service Commission HCS Main Exam Botany Question Paper : hpsc.gov.in
Name of the Organization : Haryana Public Service Commission
Name of the Exam : HCS (Ex.Br.) Main Exam
Subject : Botany
Document Type : Previous Question Paper
Year : 2014
Website : http://hpsc.gov.in/en-us/
Download Sample/Model Question Paper : https://www.pdfquestion.in/uploads/11100-Botany.pdf
HCS Main Exam Botany Question Paper :
Botany :
Code : 03
Time : 3 Hours
Max.marks : 150
Related : HPSC HCS Main Exam Animal Husbandry & Veterinary Science Question Paper : www.pdfquestion.in/11094.html
Note:
i)Attempt five questions. All questions cany equal marks. Question number is compulsory. Answer any to questions from Part I and two questions from Part lI. The parts of the same questions must be answered together and must not be interposed between answers to other questions.
ii) In case of any discrepancy in the English and Hindi versions, English version will be taken as final.
L. Write short notes on any TEN of the following : (10X3 = 30)
i. Cyanophage
ii. Sulpher shower
iii. Ubish bodies
iv, Leptosporangiate ferns
v. Nepenthes khasiana
vi. Polygenic inheritance
vii. Clover leaf model
viii. Biolistics
ix. Photophosphorylation
x. Biocoenosis
xi. Central dogma reverse
xii. Role of Apomixix in plant breeding
xiii. Granite moss
xiv. Heterosis
xv. Mosquito fern
Part – I :
2. Answer any Three of the following: (3×10 = 30)
(a) Describe a heterosporous fern studied by you. Write a note on importance of seed habit.
(b) Give details of any one natural system of classification studied by you. Describe its merits and demerits.
(c) What is secondary growth? Describe it with reference to a monocot plant.
(d) Write an essay on economic importance of a heterotrophic plant kingdom studied by you.
3. Answer any three of the following: (3×10 = 30)
(a) Describe the characteristic features of a family with persistent calyx.
(b) Write a note on morphology and economic utilization of a plant which yields Morphine.
(c) Describe the nitrogen fixing organ of a blue green algae with suitable diagrams’
(d) What are the different floristic regions of India?
4. Answer any three of the following : (3×10 = 30)
(a) Write a note on importance of medicinal plants’
(b) Describe a disease which attacks the plants of family Rutaceae’
(c) Describe the morphological features of a Liverwort studied by you’
(d) Write a note on endangered plants of lndia’
Part -II :
5. Answer any Three of the following: (3×10 = 30)
(a) Describe the characteristics of prokaryotic organisms.
(b) Write a note on a plant hormone which was discovered in Japan.
(c) What is inhibition? Describe its importance in seed germination.
(d) Describe energy flow with suitable diagrams.
5. Answer any Three of the following : (3×10 = 30)
(a) Differentiate between C3 and C4 cycle.
(b) Describe standard deviation.
(c) Write a short note on Acid Rain.
(d) What are the main components of an ecosystem? Describe
7. Answer any THREE of the following : (3×10 = 30)
(a) What is Cytoplasmic Inheritance? Give example.
(b) Describe the phenomenon of Verbalization.
(c) Describe a cycle present in Succulent Plants.
(d) Differentiate between Test Cross and Back Cross
Zoology :
1 Experiments with sea urchin demonstrated species specific sperm-egg recognition through the protein
(A) Bindin
(B) Avidin
(C) Activin
(D) HYalin
2 The primary function of the diaphragm is to
(A) Control blood pressure
(B) Regulate respiration
(C) Support the heart
(D) Keep the rib cage dilated
3 In mammals, the main integrating centre for control of temperature is
(A) Anterior pituitary
(B) Adrenal cortex
(C) Posterior pituitary
(D) Hypothalamus
4 During inspiration, the air that we breathe moves through different regions of the associated organs in the sequence of
(A) larynx- nasopharynx- trachea-glottis
(B) nasopharynx – glottis – larynx-trachea
(C) glottis – nasopharynx- Iarynx- trachea
(D) larynx- glottis – nasopharynx – trachea
5 Which of the following bird species is endangered?
(A) Hill myna
(B) Great Indian Bustard
(C) Crow pheasant
(D) Grey Hornbill
6 When removal of a species from an ecosystem affects persistence of many other species and the impact of that species removal is disproportionate to its abundance, the species is known as
(A) Indicator species
(B) Keystone species
(C) Flagship species
(D) Umbrella species
7 Which of the following methods is the most appropriate for estimating the population density of burrowing animals?
(A) Quadrant sampling
(B) Line transect sampling
(C) Tag-recapture method
(D) Nearest neighbour distance method
8 Fat formation from glucose takes place in order to
(A) Relieve liver from excess of glycogen
(B) Remove excess of fatty acids from circulation
(C) Keep blood sugar level constant
(D) Allof these
9 End product of protein catabolism is
(A) Urea
(B) Uric Acid
(C) Glutamine
(D) Ammonia
l0 The post ovulatory regression of the corpus luteum is caused by
(A) a decrease in LH secretion
(B) a decrease in FSH secretion
(C) reduction in the steroidogenic activity of the corpus luteum
(D) an increase in HCG secretion
11. When parathyroid gland is surgically removed from a mammal, the blood level of
(A) calcium and phosphorus increase
(B) calcium and phosphorus decrease
(C) calcium increases while that of phosphorus decreases
(D) calcium decreases while that of phosphorus increases
12 The hydrologic cycle involves
(A) Movement of water from atmosphere to the oceans
(B) human activities affected by water
(C) Movement of water from oceans by evaporation to the atmosphere
(D) Energy obtained from water
l3 Active transport is mediated by
(A) Channel protein
(B) Carrier protein
(C) Both depending on the concentration of the ion
(D) Both depending on the size of the ion
14 Which one of the following is the smallest protein known?
(A) Insulin
(B) Haemoglobin
(C) Immunoglobin
(D) Albumin
l5 The order of correct sedimentation is
(A) Nucleus – Mitochondria – Lysosomes – Ribosomes
(B) Lysosomes – Ribosomes – Mitochondria – Nucleus
(C) Nucleus – Golgi – Lysosomes – Mitochondria
(D) Lysosomes – Mitochondria – Nucleus – Ribosomes