HSC Science (General)
Academic Year: 2024-2025
Date: मार्च 2025
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General Instructions: The question paper is divided into four sections.
- Section A: Q.No.1 contains Ten multiple-choice types of questions carrying One mark each. Q.No.2 contains Eight very short answer type of questions carrying One mark each.
- Section B: Q.No.3 to Q.No.14 are Twelve short answer type questions carrying Two marks each. (Attempt any Eight).
- Section C: Q.No.15 to Q.No.26 are Twelve short answer type questions carrying Three marks each. (Attempt any Eight).
- Section D: Q.No.27 to Q.No.31 are Five Long answer-type questions carrying Four marks each. (Attempt any Three).
- Use of Log table is allowed. Use of calculator is not allowed.
- Figures to the right indicate full marks.
- For each multiple-choice type question, it is mandatory to write the correct answer along with its alphabet. e.g., (a) .............. /(b) ............... /(c) ............... /(d) ................ ,etc. No mark(s) shall be given if ONLY the correct answer or the alphabet of the correct answer is written.
Only the first attempt will be considered for evaluation. - Begin the answer of each section on a new page.
Secondary consumers are __________.
Herbivores
Producers
Carnivores
Autotrophs
Chapter: [0.14] Ecosystems and Energy Flow
Lesser variation in biomass production over a period of time is called ______.
Productivity Stability Hypothesis
Species Area Relationship
Species Life Cycle
None of them
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
The principle pathway of water translocation in angiosperms is ______
Sieve cells
Sieve tube elements
Xylem
Xylem and phloem
Chapter: [0.07] Plant Growth and Mineral Nutrition
The interaction between cattle egret and the buffalo is ______.
Mutuolism
Parasitism
Commensalism
Predation
Chapter: [0.13] Organisms and Populations
______ is the smallest bone in the human body.
Malleus
Stapes
lncus
Femur
Chapter: [0.09] Control and Co-ordination
______ is known as pacemaker of heart.
SA node
AV node
His bundle
Purkinje fibers
Chapter: [0.08] Respiration and Circulation
______ was signed in 1987 to control emission of ozone depleting substances.
Kyoto protocol
Montreal protocol
Nagoya protocol
Cartagena protocol
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Budding in Hydra is a form of ______.
apoptosis
sexual reproduction
asexual reproduction
None of these
Chapter: [0.02] Reproduction in Lower and Higher Animals
_______ is considered as connecting link between ape and man.
Australopithecus
Homo habilis
Homo erectus
Neanderthal man
Chapter: [0.05] Origin and Evolution of Life
Which one of the following diseases is non-communicable?
Diphtheria
Flu
Cancer
Malaria
Chapter:
Answer the following question.
Define and or explain the term:
Guttation
Chapter: [0.06] Plant Water Relation
Explain the statement of Law of dominance is not universal.
Chapter: [0.03] Inheritance and Variation
Write two varieties of sugarcane having high sugar content.
Chapter: [0.11] Enhancement of Food Production
Very very short answer question.
Name the hormone secreted by the pineal gland.
Chapter: [0.09] Control and Co-ordination
What is erythropoiesis?
Chapter: [0.08] Respiration and Circulation
How malarial parasite plasmodium is transmitted from person to person?
Chapter: [0.1] Human Health and Diseases
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Name two hormones of adenohypophysis.
Chapter: [0.09] Control and Co-ordination
Very short answer question.
What is the symplast pathway?
Chapter: [0.06] Plant Water Relation
Write short note on
Green House Effect
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
What is Cardiac output?
Chapter: [0.08] Respiration and Circulation
Explain the properties of a good or ideal cloning vector for rDNA technology.
Chapter: [0.12] Biotechnology
Give any three differences between an artery and a vein
Chapter: [0.08] Respiration and Circulation
Describe the different communities involved in the process of succession.
Chapter: [0.14] Ecosystems and Energy Flow
Name some drugs which are commonly abused?
Chapter: [0.1] Human Health and Diseases
Draw a diagram of pyramid of energy.
Chapter: [0.14] Ecosystems and Energy Flow
Enlist the meninges of human brain.
Chapter: [0.09] Control and Co-ordination
Distinguish between active immunity and passive immunity.
Chapter: [0.1] Human Health and Diseases
Match the pairs:
| Column A | Column B | ||
| (i) | Compost making biofertilizer |
(a) | Azotobacter |
| (ii) | N2 fixing biofertilizer | (b) | Mycorrhiza |
| (iii) | Fungal biofertilizer | (c) | Agrobacterium |
| (iv) | Phosphate solubilizing biofertilizer |
(d) | Actinobocteria |
Chapter: [0.11] Enhancement of Food Production
What is transpiration?
Chapter: [0.06] Plant Water Relation
Answer the following question.
Explain the role of transpiration.
Chapter: [0.06] Plant Water Relation
Describe any three adaptations in anemophilous flowers.
Chapter: [0.01] Reproduction in Lower and Higher Plants
Write a note on the significance of Palaeontology.
Chapter: [0.05] Origin and Evolution of Life
Define Population.
Chapter: [0.13] Organisms and Populations
Define the term Biome.
Chapter: [0.13] Organisms and Populations
Define Niche.
Chapter: [0.13] Organisms and Populations
Outline salient features of decomposition cycle in an ecosystem.
Chapter:
Match the following pairs:
| Column A | Column B | ||
| Antibiotic produced | Microbial source | ||
| (i) | Penicillin | (a) | Streptomyces venezuelae |
| (ii) | Chloromycetin | (b) | Bacillus licheniformis |
| (iii) | Bacitracin | (c) | Streptomyces aurifaciens |
| (iv) | Erythromycin | (d) | Streptomyces griseus |
| (v) | Streptomycin | (e) | Penicillium chrysogenum |
| (vi) | Terramycin | (f) | Streptomyces erythreus |
Chapter: [0.11] Enhancement of Food Production
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Write avian characters of Archaeopteryx.
Chapter: [0.05] Origin and Evolution of Life
Describe the term Niche.
Chapter: [0.13] Organisms and Populations
How particulate air pollutants affect human health?
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Write a note on human sperm
Chapter: [0.02] Reproduction in Lower and Higher Animals
Define ornithophily.
Chapter: [0.01] Reproduction in Lower and Higher Plants
Enlist adaptations in ornithophilous flowers.
Chapter: [0.01] Reproduction in Lower and Higher Plants
Write a short note on facilitated diffusion.
Chapter: [0.06] Plant Water Relation
Explain capillarity theory.
Chapter: [0.06] Plant Water Relation
Give the name, type and origin of the following cranial nerve:
Number-II
Chapter: [0.09] Control and Co-ordination
Give the name, type and origin of the following cranial nerve:
Number-IV
Chapter: [0.09] Control and Co-ordination
Give the name, type and origin of the following cranial nerve:
Number-IX
Chapter: [0.09] Control and Co-ordination
Describe the process of double fertilization.
Chapter: [0.01] Reproduction in Lower and Higher Plants
What is Geitonogamy?
Chapter: [0.01] Reproduction in Lower and Higher Plants
What are the different strategies for biodiversity conservation in India?
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Describe the process of transcription.
Chapter: [0.04] Molecular Basis of Inheritance
Explain mechanism of hormone action through membrane receptor.
Chapter: [0.09] Control and Co-ordination
Draw a labelled diagram of the LS. of Anatropous ovule.
Chapter: [0.01] Reproduction in Lower and Higher Plants
Write the function of LS of Anotropous ovule.
Chapter: [0.01] Reproduction in Lower and Higher Plants
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