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Biology Set 1 2017-2018 ICSE Class 10 Question Paper Solution

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Biology [Set 1]
Marks: 80Academic Year: 2017-2018
Date: March 2018

Question 1 is Compulsory

Attempt Any Four Question From Question 2 to Question 7


[40]1
[5]1.1
[1]1.1.1

Name the following:

The organization which procures and supplies blood during an emergency

Concept: Health Organisations
Chapter: [0.040999999999999995] Health Organisations
[1]1.1.2

Name the following:

The blood vessel which supplies blood to the liver.

Concept: Circulation of Blood
Chapter: [0.032] The Circulatory System
[1]1.1.3

Name the following :

The number of chromosomes present in a nerve cell of a human being.

Concept: Cell Division and Cell Cycle
Chapter: [0.012] Cell Cycle, Cell Division and Structure of Chromosomes
[1]1.1.4

Name the following :

The layer of the eyeball that forms the transparent Cornea

Concept: Nervous System - Structure of Neuron
Chapter: [0.033] The Nervous System
[1]1.1.5

Name the following :

The wax-like layer on the epidermis of leaves which reduces transpiration.

Concept: Means of Transport - Active Transport
Chapter: [0.024] Absorption by Roots : the Processes Involved
[5]1.2 | Choose the correct answer from each of the four options given below:
[1]1.2.1

The number of Spinal nerves in a human being are :

(A) 31 pairs

(B) 10 pairs

(C) 21 pairs

(D) 30 pairs

Concept: Nervous System - Structure of Neuron
Chapter: [0.033] The Nervous System
[1]1.2.2

Which one of the following is non-biodegradable?

(A) DDT

(B) Vegetable peel

(C) Cardboard

(D) Bark of trees

Concept: Pollution - Types of Pollution
Chapter: [0.05] Pollution
[1]1.2.3

Aqueous humour is present between the :

(A) Lens and Retina

(B) Iris and Lens

(C) Cornea and Iris

(D) Cornea and Lens

Concept: Division of Nervous System
Chapter: [0.033] The Nervous System
[1]1.2.4

A strong chemical substance which is used on objects and surfaces in our surroundings to kill germs:

Cresol

Carbolic acid

Iodine

Mercurochrome

Concept: Concept of Aids to Health
Chapter: [0.042] Aids to Health
[1]1.2.5

Which one of the following is a Greenhouse gas?

(A) Oxygen

(B) Methane

(C) Sulphur dioxide

(D) Nitrogen

Concept: Greenhouse Effect and Climate Change
Chapter: [0.05] Pollution
[5]1.3

Complete the following paragraph by filling in the blank (1) to (5) with appropriate words:

To test a leaf for starch, the leaf is boiled in water to (1) _________.  It is then boiled in Methylated spirit to (2) ________. The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (3) _____ solution is added. The region of the leaf which contains starch, turns (4) ________and the region while does not contain starch, turns (5) __________.

Concept: Concept of Photosynthesis
Chapter: [0.022000000000000002] Photosynthesis: Provider of Food for All
[5]1.4

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

  Column A   Column B
1 Cretinism a Hypersecretion of the adrenal cortex
2 Diabetes insipidus b Hyposecretion of Thyroxine
3 Exophthalmic Goitre c Hyposecretion of growth hormone
4 Adrenal virilism d Hyposecretion of Vasopressin
5 Dwarfism e Hyposecretion of the adrenal cortex
    f Hypersecretion of Growth hormone
    g Hypersecretion of thyroxine
Concept: Endocrine System -adrenal Gland
Chapter: [0.035] The Endocrine System
[5]1.5
[1]1.5.1

Correct the following statements by changing the underlined words:

The normal pale yellow colour of the urine is due to the presence of the pigment Melanin.

Concept: Elementary Treatment of the Structure and Function of the Kidneys
Chapter: [0.031] The Excretory System (Elimination of Body Wastes)
[1]1.5.2

Correct the following statements by changing the underlined words:

The outermost layer of Meninges is Pia mater.

Concept: Concept of Brain
Chapter: [0.033] The Nervous System
[1]1.5.3

Correct the following statements by changing the underlined words:

The cell sap of root hair is Hypotonic.

Concept: Concept of Brain
Chapter: [0.033] The Nervous System
[1]1.5.4

Correct the following statements by changing the underlined words:

Xylem transports starch from the leaves to all parts of the plant body

Concept: Absorption by Roots
Chapter: [0.024] Absorption by Roots : the Processes Involved
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[1]1.5.5

Correct the following statements by changing the underlined words:

Nitrogen bonds are present between the complementary nitrogenous bases of DNA.

Concept: Cell Division and Cell Cycle
Chapter: [0.012] Cell Cycle, Cell Division and Structure of Chromosomes
[5]1.6 | Choose between the two options to answer the question specified in the brackets for the following An example is illustrated below. Example: Corolla or Calyx (Which is the miter whorl ?) Answer: Calyx
[1]1.6.1

Blood in the renal artery or renal vein (Which one has more urea ?)

Concept: Elementary Treatment of the Structure and Function of the Kidneys
Chapter: [0.031] The Excretory System (Elimination of Body Wastes)
[1]1.6.2

Perilymph or endolymph (Which one surrounds the organ of Corti ?)

Concept: Ear: Parts and Functions of the Ear
Chapter: [0.033] The Nervous System
[1]1.6.3

Lenticels or stomata (Which one remains open always ?)

Concept: Means of Transport - Active Transport
Chapter: [0.024] Absorption by Roots : the Processes Involved
[1]1.6.4

Sclerotic layer or choroid layer.(Which one forms the Iris ?)

Concept: Ear: Parts and Functions of the Ear
Chapter: [0.033] The Nervous System
[1]1.6.5

Blood in the pulmonary artery or pulmonary vein (Which one contains less oxyhaemoglobin ?)

Concept: Circulation of Blood
Chapter: [0.032] The Circulatory System
[5]1.7

Given below is a representation of a type pollution.

Study the picture and answer the questions :

1) Name the type of pollution shown in the picture

2) Name one source of this pollution

3) How does this pollution affect human health?

4) Write one measure to reduce this pollution

5) State one gaseous compound that leads to the depletion of the ozone layer and creates ‘Ozone holes’.

Concept: Pollution - Types of Pollution
Chapter: [0.05] Pollution
[5]1.8
[1]1.8.1

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:

Detergents, X-rays, sewage, oil spills

Concept: Pollution - Types of Pollution
Chapter: [0.05] Pollution
[1]1.8.2

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:

Lumen, muscular tissue, connective tissue, pericardium

 

Concept: Cell Division and Cell Cycle
Chapter: [0.012] Cell Cycle, Cell Division and Structure of Chromosomes
[1]1.8.3

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:

Dendrites, Medullary sheath, Axon, Spinal cord

Concept: Nervous System - Structure of Neuron
Chapter: [0.033] The Nervous System
[1]1.8.4

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong

Centrosome.Cell wall, Cell membrane, Large vacuoles

Concept: Chromosomes - Basic Structure, Number
Chapter: [0.012] Cell Cycle, Cell Division and Structure of Chromosomes
[1]1.8.5

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong :

Prostate gland, Cowper’s gland, seminal vesicle, seminiferous tubules

Concept: Reproduction in Human Beings
Chapter: [0.034] The Reproductive System
[10]2
[5]2.1

The diagram given below represents a stage during cell division

Study the same and answer the questions that follow:

1) Identify whether it is a plant cell or an animal cell. Give a reason in support of your answer.

2) Name the stage depicted in the diagram. What is the unique feature observed in this stage?

3) Name the type of cell division that occurs during :

a)  Replacement of old leaves by new ones

b)  Formation of gametes

4) What is the stage that comes before the stage shown in the diagram?

5) Draw a neat, labelled diagram of the stage mentioned in (iv) above keeping the chromosome number constant.

Concept: Cell Division and Cell Cycle
Chapter: [0.012] Cell Cycle, Cell Division and Structure of Chromosomes
[5]2.2
[1]2.2.1

Mention the exact location of Epididymis

Concept: Nervous System - Structure of Neuron
Chapter: [0.033] The Nervous System
[1]2.2.2

Mention the exact location of the Lacrimal gland

Concept: Nervous System - Structure of Neuron
Chapter: [0.033] The Nervous System
[1]2.2.3

Mention the exact location of Malleus

Concept: Nervous System - Structure of Neuron
Chapter: [0.033] The Nervous System
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[1]2.2.4

Mention the exact location of Hydathodes

Concept: Nervous System - Structure of Neuron
Chapter: [0.033] The Nervous System
[1]2.2.5

Mention the exact location of the Pulmonary semilunar valve

Concept: Nervous System - Structure of Neuron
Chapter: [0.033] The Nervous System
[10]3
[5]3.1

Given below are diagrams showing the different stages in the process of fertilisation of an egg. in the human female reproductive tract.

Study the diagrams and answer the questions:

1) Arrange the letters given below each diagram in a logical sequence to show the correct order in the process of fertilisation.

2) Where does fertilisation normally take place? and What is ‘Implantation’ that follows fertilisation?

3) Mention the chromosome number of the egg and zygote in humans.

4) Explain the term ‘Gestation’. How long does Gestation last in humans?

5) Draw a neat, labelled diagram of a mature human sperm.

Concept: Reproduction in Human Beings
Chapter: [0.034] The Reproductive System
[5]3.2

A potted plant with variegated leaves was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours and then placed in bright sunlight for a few hours. Observe the diagrams and answer the questions

1) What aspect of photosynthesis is being tested in the above diagram?

2) Represent the process of photosynthesis in the form of a balanced equation.

3) Why was the plant kept in the dark before beginning the experiment?

4) What will be the result of the starch test performed on Leaf ‘A’ shown in the diagram ? Give an example of a plant with variegated leaves

5) Draw a neat labelled diagram of a chloroplast.

Concept: Concept of Photosynthesis
Chapter: [0.022000000000000002] Photosynthesis: Provider of Food for All
[10]4
[5]4.1

The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions:

1) Name the phenomenon that is depicted in the diagram. Define the phenomenon.

2) Give the technical term for the point of contact between the two nerve cells.

3) Name the parts numbered 1, 2 and 3.

4) How does the arrangement of neurons in the spinal cord differ from that of the brain?

5) Mention two ways by which the spinal cord is protected in our body.

Concept: Reflex Action and Reflex Arc
Chapter: [0.033] The Nervous System
[5]4.2

Give appropriate biological or technical terms for the following

The process of maintaining water and salt balance in the blood.

Concept: Cell Division and Cell Cycle
Chapter: [0.012] Cell Cycle, Cell Division and Structure of Chromosomes

Give appropriate biological or technical terms for the following :

Hormones which regulate the secretion of other endocrine glands.

Concept: Difference in Endocrine and Exocrine Glands
Chapter: [0.035] The Endocrine System

Give appropriate biological or technical terms for the following :

Movement of molecules of a substance from their higher concentration to lower concentration when they are in direct contact.

Concept: Diffusion and Osmosis
Chapter: [0.024] Absorption by Roots : the Processes Involved

Give appropriate biological or technical terms for the following :

The condition in which a pair of chromosomes carries similar alleles of a particular character.

Concept: Chromosomes - Basic Structure, Number
Chapter: [0.012] Cell Cycle, Cell Division and Structure of Chromosomes

Give appropriate biological or technical terms for the following :

The complex consisting of a DNA strand and a core of histones

Concept: Concept of Circulatory System
Chapter: [0.032] The Circulatory System

Give appropriate biological or technical terms for the following :

The onset of menstruation in a young girl

Concept: Menstrual Cycle
Chapter: [0.034] The Reproductive System

Give appropriate biological or technical terms for the following :

Squeezing out of white blood cells from the capillaries into the surrounding tissues.

Concept: Composition of Blood
Chapter: [0.032] The Circulatory System

Give appropriate biological or technical terms for the following :

The fluid which surrounds the foetus

Concept: Nutrition and Respiration of the Embryo
Chapter: [0.034] The Reproductive System

Give appropriate biological or technical terms for the following

The relaxation phase of the heart.

Concept: Concept of Circulatory System
Chapter: [0.032] The Circulatory System

Give appropriate biological or technical terms for the following :

The difference between the birth rate and the death rate

Concept: Need for Adopting Control Measures - Population Control
Chapter: [0.036000000000000004] Population – The Increasing Numbers and Rising Problems [0.06] Population
[10]5
[5]5.1

The diagram given below is that of a structure present in a human kidney.

Study the same and answer the questions that follow:

1) Name the structure represented in the diagram

2) What is the liquid entering part ‘1’ called?

Name two substances present in this liquid that are reabsorbed in the tubule.

3) What is the fluid that comes to part ‘2’ called?

Name the main nitrogenous waste in it.

4) Mention the three main steps involved in the formation of the fluid mentioned in (iii) above

5) Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus.

Concept: Elementary Treatment of the Structure and Function of the Kidneys
Chapter: [0.031] The Excretory System (Elimination of Body Wastes)
[5]5.2
[1]5.2.1

Differentiate between the following pairs on the basis of what is indicated in the brackets.

Leaf and Liver [form in which glucose is stored]

Concept: Concept of Photosynthesis
Chapter: [0.022000000000000002] Photosynthesis: Provider of Food for All
[1]5.2.2

Differentiate between the following pairs on the basis of what is indicated in the brackets.

ATP and AIDS [expand the abbreviations]

Concept: Difference in Endocrine and Exocrine Glands
Chapter: [0.035] The Endocrine System
[1]5.2.3

Differentiate between the following pairs on the basis of what is indicated in the brackets.

Testosterone and Oestrogen [organ which secrets]

Concept: Endocrine System -adrenal Gland
Chapter: [0.035] The Endocrine System
[1]5.2.4

Differentiate between the following pairs on the basis of what is indicated in the brackets.

Ureter and Urethra [function]

Concept: Elementary Treatment of the Structure and Function of the Kidneys
Chapter: [0.031] The Excretory System (Elimination of Body Wastes)
[1]5.2.5

Differentiate between the following pairs on the basis of what is indicated in the brackets.

Hypotonic solution and Hypertonic solution [condition of a plant cell when placed in them]

Concept: Diffusion and Osmosis
Chapter: [0.024] Absorption by Roots : the Processes Involved
[10]6
[5]6.1

Given below is a diagram of a human blood smear.

Study the diagram and answer the questions that follow:

a) Name the components numbered ‘1’ to ‘4’

b) Mention two structural differences between the parts ‘1’ and ‘2’.

c) Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.

d) What is the average lifespan of the component numbered ‘1’ ?

e) Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain

Concept: Circulation of Blood
Chapter: [0.032] The Circulatory System
[5]6.2

Give biological explanations for Education is very important for population control.

Concept: Problems Posed by the Increase in Population in India
Chapter: [0.036000000000000004] Population – The Increasing Numbers and Rising Problems

Give biological explanations for The placenta is an important structure for the development of a foetus

Concept: Reproduction in Human Beings
Chapter: [0.034] The Reproductive System

Give biological explanations for All the food chains begin with green plants.

Concept: Reproduction in Human Beings
Chapter: [0.034] The Reproductive System

Give biological explanations for Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered.

Concept: Concept of Photosynthesis
Chapter: [0.022000000000000002] Photosynthesis: Provider of Food for All

Give biological explanations for We should not put sharp objects into our ears.

Concept: Ear: Parts and Functions of the Ear
Chapter: [0.033] The Nervous System
[10]7
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[5]7.1

The diagram below represents a process in plants. The setup was placed in bright sunlight. Answer the following questions:

a) Name the physiological process depicted in the diagram.

Why was oil added to the water?

b) When placed in bright sunlight for four hours, what do you observe with regard to the initial and final weight of the plant? Give a suitable reason for your answer

c) What happens to the level of water when this setup is placed in:

  1. Humid conditions?
  2. Windy conditions?

d) Mention any three adaptations found in plants to overcome the process mentioned in (i).

e) Explain the term ‘Guttation’.

Concept: Plant - Turgidity and Flaccidity
Chapter: [0.024] Absorption by Roots : the Processes Involved
[5]7.2

A pea plant which is homozygous for green pods which are inflated [GGII] is crossed with a homozygous plant for yellow pods which are constricted [ggii]. Answer the following questions;

a) Give the phenotype and genotype of the F1 generation.

Which type of pollination has occurred to produce F1 generation?

b) Write the phenotypic ratio of the F2 generation

c) Write the possible combinations of the gametes that can be obtained if two F1 hybrid plants are crossed.

d) State Mendel’s law of ‘Segregation of Gametes’

5) What is the scientific name of the plant which Mendel used for his experiments on inheritance?

Concept: Genetics: Mendel’s Laws of Inheritance
Chapter: [0.011000000000000001] Genetics – Some Basic Fundamentals

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