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Question Paper Solutions - Biology 2016 - 2017 ICSE Class 10

SubjectBiology
Year2016 - 2017 (March)

Attempt all questions from Section I and any four questions from Section II.
The intended marks of questions or parts of questions are given in brackets


Marks: 80
[40]1
[5]1.1 | Name the following
[1]1.1.1

The process by which root hairs absorb water from the soil.

Chapter: [2] Plant Physiology
Concept: Absorption by Roots
[1]1.1.2

The organ which produces urea.

Chapter: [3] Human Anatomy and Physiology
Concept: Elementary Treatment of the Structure and Function of the Kidneys
[1]1.1.3

The kind of lens required to correct Myopia

Chapter: [3] Human Anatomy and Physiology
Concept: Eye Defects and Corrective Measures
[1]1.1.4

The pituitary hormone which stimulates contraction of uterus during  child birth.

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings
[1]1.1.5

The international health organisation which educates people in accident prevention.

Chapter: [4] Physical Health and Hygiene
Concept: Health Organisations
[5]1.2 | Choose the correct answer from each of the four options given below
[1]1.2.1

The prime source of chlorofluorocarbons is:
A. Vehicular emissions
B. Industrial effluents
C. Domestic sewage
D. Refrigeration equipments

Chapter: [5] Pollution
Concept: Sources of Pollution and Major Pollutan - Air
[1]1.2.2

Penicillin obtained from a fungus is:
A. Antibiotic
B. Antiseptic
C. Antibody
D. Antiserum

Chapter: [4] Physical Health and Hygiene
Concept: First Aid - Basic Principles of First Aid
[1]1.2.3

Marine fish when placed in tap water bursts because of:
A. Endosmosis
B. Exosmosis
C. Diffusion
D. Plasmolysis

Chapter: [3] Human Anatomy and Physiology
Concept: Nervous System - Structure of Neuron
[1]1.2.4

Surgical method of sterilisation in a woman involves cutting and tying of:
A. Ureter
B. Uterus
C. Urethra
D. Oviduct

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings
[1]1.2.5

Synthesis phase in the cell cycle is called so, because of the synthesis of more:
A. RNA
B. RNA and proteins
C. DNA
D. Glucose

Chapter: [1] Basic Biology
Concept: Chromosomes - Basic Structure, Number
[5]1.3 | The statements given below are incorrect. Rewrite the correct statement by changing the underlined words of the statements.
[1]1.3.1

The Graafian follicle, after ovulation turns into a hormone producing issue called Corpus callosum.

Chapter: [1.03] Human Reproduction
Concept: Menstrual Cycle
[1]1.3.2

Deafness is causal due to the rupturing of the Pinna.

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[1]1.3.3

Gyri and Sulci are the folds of Cerebellum

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Brain
[1]1.3.4

Free movement of solutes in and out of the cell takes place across the cell membrane.

Chapter: [2.02] Cell Division
Concept: Cell Division and Cell Cycle
[1]1.3.5

The solvent used to dissolve the chlorophyll pigments while testing a leaf for starch is Soda lime.

Chapter: [2] Plant Physiology
Concept: Experiments - Formation of Starch and the Output of Oxygen; Carbon Cycle
[5]1.4 | Given below are sets of five terms each. Rewrite the terms in correct order in a logical sequence. Example : Large intestine, Stomach, Mouth, Small intestine, Oesophagus. Answer : Mouth ⟶ Oesophagus ⟶ Stomach ⟶ Small intestine ⟶ Large intestine.
[1]1.4.1

Fibrin, Platelets, Thromboplastin, Fibrinogen, Thrombin.

Chapter: [3] Human Anatomy and Physiology
Concept: Structure and Functions of Blood
[1]1.4.2

Cochlea, Malleus, Pinna, Stapes, Incus.

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[1]1.4.3

Receptor, Spinal cord, Effector, Motor neuron, Sensory neuron.

Chapter: [3] Human Anatomy and Physiology
Concept: Nervous System - Structure of Neuron
[1]1.4.4

Uterus, Parturition, Fertilisation, Gestation, Implantation.

Chapter: [1.03] Human Reproduction
Concept: Menstrual Cycle
[1]1.4.5

Caterpillar, Snake, Owl, Frog, Green leaves.

Chapter: [3] Human Anatomy and Physiology
Concept: Problems Posed by the Increase in Population in India
[5]1.5 | Choose the ODD one out of the following terms given and name the CATEGORY to which the others belong:
[1]1.5.1

Aqueous humour, Vitreous humour, lris, Central canal

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Circulatory System
[1]1.5.2

Formalin, Iodine, DDT, Lime

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[1]1.5.3

ACTH, TSH, ADH, FSH

Chapter: [3] Human Anatomy and Physiology
Concept: Functions of Organs and Accessory Glands
[1]1.5.4

Phosphate, RNA, Sugar, Nitrogenous base

Chapter: [2] Plant Physiology
Concept: Experiments - Formation of Starch and the Output of Oxygen; Carbon Cycle
[1]1.5.5

Bile, Urea, Uric acid, Ammonia

Chapter: [3] Human Anatomy and Physiology
Concept: Elementary Treatment of the Structure and Function of the Kidneys
[5]1.6 | Given below are groups of terms. In each group the first pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis. Example : Oxygen : Inspiration : : Carbon dioxide : Expiration
[1]1.6.1

Eye : Optic nerve : : Ear : ___________

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[1]1.6.2

Cytoplasm : Cytokinesis : : Nucleus : __________

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[1]1.6.3

TT : Homozygous : : Tt : ____________

Chapter: [1] Basic Biology
Concept: Genetics: Mendel’s Laws of Inheritance
[1]1.6.4

Foetus : Amnion : : Heart: ______

Chapter: [3] Human Anatomy and Physiology
Concept: Reflex Action Differs from Voluntary Reflex
[1]1.6.5

Adenine : Thymine : : Cytosine : ________

Chapter: [3] Human Anatomy and Physiology
Concept: Difference in Endocrine and Exocrine Glands
[5]1.7
[5]1.7.1

Match the items given in Column A with the most appropriate ones in Column B and rewrite the correct matching pairs.

No Column A Column B
  Sacculus dynamic body balance
  Birth rate Hyperglycemia
  DNA and histomes Hypoglycemia
  Euro norms Natality
  Diabetes mellitus static body balance
    vehicular standards
    nucleosome
Chapter: [3] Human Anatomy and Physiology
Concept: Problems Posed by the Increase in Population in India
[5]1.8

The diagram given below represents the location and structure of an endocrine gland. Study the same and answer the questions that follow 

(i) Name the endocrine gland shown in the diagram.
(ii) Name the secretion of the gland which regulates basal metabolism.
(iii) Name the mineral element required for the synthesis of the above mentioned hormone.
(iv) Name the disease caused due to undersecretion of the above mentioned hormone in children.
(v) Name the disease caused due to hypersecretion of the above mentioned hormone.

Chapter: [3] Human Anatomy and Physiology
Concept: Endocrine System - Gland
[10]2
[5]2.1

Study the diagram given below which represents a stage during the mitotic cell division and answer the questions that follow

(i) Identify the stage giving suitable reasons.
(ii) Name the parts numbered 1 and 2.
(iii) What is the technical term for the division of nucleus?
(iv) Mention the stage that comes before the stage shown in the diagram. Draw a neat labelled diagram of the stage mentioned.
(v) Which is the cell division that results in half the number of chromosomes in daughter cells?

Chapter: [1] Basic Biology
Concept: Significance and Major Differences Between Mitotic and Meiotic Division
[5]2.2 | Differentiate between the following pairs on the basis of what is mentioned in brackets
[1]2.2.1

Active Transport and Diffusion [Significance in plants]

Chapter: [2] Plant Physiology
Concept: Means of Transport - Active Transport
[1]2.2.2

Demography and Population density [Definition]

Chapter: [3] Human Anatomy and Physiology
Concept: Problems Posed by the Increase in Population in India
[1]2.2.3

Antibiotic and Antibody [Source]

Chapter: [4] Physical Health and Hygiene
Concept: Health Organisations
[1]2.2.4

Renal cortex and Renal medulla [Parts of the nephrons present]

Chapter: [3] Human Anatomy and Physiology
Concept: Nervous System - Structure of Neuron
[1]2.2.5

NADP and ATP [Expand the abbreviation]

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[10]3
[5]3.1

The diagram given below represents a plant cell after being placed in a strong sugar solution. Study the diagram and answer the questions that follow 

(i) What is the state of the cell shown in the diagram?
(ii) Name the structure that acts as a selectively permeable membrane.
(iii) Label the parts numbered 1 to 4 in the diagram.
(iv) How can the above cell be brought back to its original condition? Mention the scientific term for the recovery of the cell.
(v) State any two features of the above plant cell which is not present in animal cells.

Chapter: [2.02] Cell Division
Concept: Cell Division and Cell Cycle
[5]3.2

Given below is a representation of a kind of pollution. Study the same and answer the questions that follow

(i) Name the kind of pollution.
(ii) List any three common sources of this pollution.
(iii) Mention three harmful effects of this pollution on human health.
(iv) Explain the term ‘Pollutant’.
(v) Name two soil pollutants

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[10]4
[5]4.1

The diagrams given below represent the relationship between a mouse and a physiological process that occurs in green plants. Study the diagrams and answer the questions that follow

(i) Name the physiological process occurring in the green plant that has kept the mouse alive.
(ii) Explain the physiological process mentioned above.
(iii) Why did the mouse die in bell jar B?
(iv) What is the significance of the process as stated in (i) for life on earth?
(v) Represent the above mentioned physiological process in the form of a chemical equation.

 

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[5]4.2
[1]4.2.1

Mention the exact location of the Prostate gland.

Chapter: [3] Human Anatomy and Physiology
Concept: Elementary Treatment of the Structure and Function of the Kidneys
[1]4.2.2

Mention the exact location of the Myelin sheath

Chapter: [3] Human Anatomy and Physiology
Concept: Nervous System - Structure of Neuron
[1]4.2.3

Mention the exact location of the Islets of Langerhans

Chapter: [3] Human Anatomy and Physiology
Concept: Division of Nervous System
[1]4.2.4

Mention the exact location of the Semi-circular canals

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[1]4.2.5

Mention the exact location of the Eustachian tube

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[10]5
[5]5.1

The diagram shown below is the longitudinal section of a testis of man. Study it carefully and answer the questions that follow

(i) Label the parts numbered 1 to 3 in the diagram.
(ii) In which part of the testis are the sperms produced?
(iii) State the functions of the parts labelled 1 and 3 in the diagram.

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings

Name the cells that secrete Testosterone

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings

Draw a neat, labelled diagram of a sperm

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings
[5]5.2
[1]5.2.1

Give biological reasons for the following:

Some women have facial hair like heard and moustache.

Chapter: [4] Physical Health and Hygiene
Concept: Health Organisations
[1]5.2.2

Give biological reasons for the following statements:

Cutting of trees should be discouraged.

Chapter: [2] Indian Economic Development
Concept: Effect of Global Warming
[1]5.2.3

Give biological reasons for the following statements : In some xerophytes leaves are modified into spines

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[1]5.2.4

Give biological reasons for the following statements: There is frequent urination in winter than in summer

Chapter: [3] Human Anatomy and Physiology
Concept: Elementary Treatment of the Structure and Function of the Kidneys
[1]5.2.5

Give biological reasons for the following statements:The left ventricle of the heart has a thicker wall than the right ventricle. 

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Circulatory System
[10]6
[5]6.1

The diagram given below represents a section of the human heart. Answer the questions that follow :

(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds ‘LUBB’ and ‘DUP’?
(iv) Name the blood vessels that supply oxygenated blood to the heart muscles.
(v) Draw neat labelled diagrams of a cross section of an artery and a vein.

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Circulatory System
[5]6.2

Give appropriate biological/technical terms for the following:

The type of immunity that exists in our body due to our genetic makeup.

Chapter: [1] Basic Biology
Concept: Genetics: Mendel’s Laws of Inheritance

Give appropriate biological/technical terms for the following:

The suppressed allele of a gene.

Chapter: [1] Basic Biology
Concept: Genetics: Mendel’s Laws of Inheritance

Give appropriate biological/technical terms for the following:

The accessory gland in human males whose secretion activates the
sperms.

Chapter: [3] Human Anatomy and Physiology
Concept: Functions of Organs and Accessory Glands

Give appropriate biological/technical terms for the following:

An apparatus that measures the rate of water uptake in a cut shoot due to transpiration.

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis

Give appropriate biological/technical terms for the following:

The kind of twins formed from two fertilized eggs.

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings

Give appropriate biological/technical terms for the following:

A pair of corresponding chromosomes of the same size and shape, one from each parent.

Chapter: [1] Basic Biology
Concept: Genetics: Mendel’s Laws of Inheritance

Give appropriate biological/technical terms for the following:

The mild chemical substance which when applied on the body kills germs.

Chapter: [4] Physical Health and Hygiene
Concept: First Aid - Basic Principles of First Aid

Give appropriate biological/technical terms for the following:

The type of waste generated in hospitals and pathological laboratories

Chapter: [5] Pollution
Concept: Sources of Pollution and Major Pollutant - Water

Give appropriate biological/technical terms for the following:

The antiseptic substance in tears.

Chapter: [4] Physical Health and Hygiene
Concept: First Aid - Basic Principles of First Aid

Give appropriate biological/technical terms for the following: Cellular components of blood containing hemoglobin

Chapter: [3] Human Anatomy and Physiology
Concept: Structure and Functions of Blood
[10]7
[5]7.1

In a homozygous pea plant, axial flowers (A) are dominant over terminal flowers (a).

(i) What is the phenotype and genotype of the F1 generation if a plant bearing pure axial flowers is crossed with a plant bearing pure terminal flowers?
(ii) Draw a Punnett square board to show the gametes and offsprings when both the parent plants are heterozygous for axial flowers.
(iii) What is the phenotypic ratio and genotypic ratio of the above cross shown in (ii)?
(iv) State Mendel’s Law of Dominance.
(v) Name two genetic disorders commonly seen in human males.

Chapter: [1] Basic Biology
Concept: Genetics: Mendel’s Laws of Inheritance
[5]7.2

The diagram given below is an external view of the human brain. Study the same and answer the questions that follow :

(i) Name the parts labelled A, B and C in the diagram.
(ii) State the main functions of the parts labelled A and B.

(iii) What are the structural and functional units of the brain? How are the parts of these units arranged in A and C?
(iv) Mention the collective term for the membranes covering the brain.
(v) What is the function of Cerebrospinal fluid?

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Brain
S