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Question Paper Solutions - Biology 2013 - 2014 ICSE Class 10

SubjectBiology
Year2013 - 2014 (March)
  1. Answers to this paper must be written on the paper provided separately.
  2. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper.
  3. The time given at the head of the paper is the time allowed for writing the answers.
  4. Attempt all questions from Section I (Q1 )and any four questions from Section II (Q2 - Q7).

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

The part of the brain associated with memory.

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Brain
[1]1.1.2

The ear ossicle which is attached to the tympanum.

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[1]1.1.3

The type of gene which is not expressed in the presence of a contrasting allele.

Chapter: [1] Basic Biology
Concept: Genetics: - Sex Linked Inheritance of Diseases
[1]1.1.4

The hormone secreted by islets of langerhans.

Chapter: [3] Human Anatomy and Physiology
Concept: Endocrine System - Gland
[1]1.1.5

The process of conversion of ADP into ATP during photosynthesis.

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[5]1.2 | State the main function of the following:
[1]1.2.1

The main function of Cerebrospinal fluid

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Brain
[1]1.2.2

State the main function of the Eustachian tube

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[1]1.2.3

State the main function of the Suspensory ligament of the eye 

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[1]1.2.4

State the main function of the Sperm duct.

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

State the main function of the Lenticels

Chapter: [2] Plant Physiology
Concept: Experiments - Formation of Starch and the Output of Oxygen; Carbon Cycle
[5]1.3 | Copy and complete the following by filling in the blanks 1 to 5 with appropriate words:

The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ___________(1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the ______________(2) follicle. The process of releasing the egg from the ovary is called _______________(3). The ovum is picked up by the oviducal funnel and fertilisation takes place in the ______________(4). In about a week, the blastocyst gets fixed in the endometrium of the uterus and this process is called_________________(5).

Chapter: [1.03] Human Reproduction
Concept: Menstrual Cycle
[5]1.4 | Given below are six sets with four terms each. In each set one term is odd and cannot be grouped in the same category to which the other three belong. Identify the odd one in each set and name the category to which the remaining three belong. The first one has been done as an example. Example: Calyx, Corolla, Stamens, Midrib Odd term: midrib Category: Parts of a flower
[1]1.4.1

Identify the odd one in each set : Haemoglobin, Glucagon, Iodopsin, Rhodopsin

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

Identify the odd one in each set :Urethra, Uterus, Urinary bladder, Ureter

Chapter: [3] Human Anatomy and Physiology
Concept: Elementary Treatment of the Structure and Function of the Kidneys
[1]1.4.3

Identify the odd one in each set : Transpiration, Photosynthesis, Phagocytosis, Guttation

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[1]1.4.4

Identify the odd one in each set : Cyton, Photon, Axon, Dendron

Chapter: [3] Human Anatomy and Physiology
Concept: Nervous System - Structure of Neuron
[1]1.4.5

Identify the odd one in each set : Oxytocin, Insulin, Prolactin, Progesterone

Chapter: [3] Human Anatomy and Physiology
Concept: Endocrine System - Gland
[5]1.5

The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions:

(i) Name the process intended for study.
(ii) Define the above mentioned process.
(iii) When the weight of the test tube (A & B) is taken before and after the experiment, what is observed? Give reasons to justify your observation in A & B.
(iv) What is the purpose of keeping the test tube B in the experimental setup?

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[5]1.6 | Match the items given in Column A with the most appropriate ones in Column B and rewrite the correct matching pairs from Column A and Column B:

Match the items given in Column

No Column A Column B
1 Pituitary gland Testosterone
2 Sulphur dioxide Calcium
3 Seminiferous tubules Growth hormone
4 Clotting of blood Acid rain
5 Guttation Sperms
    Global warming
    Magnesium
    Hydathodes

 

Chapter: [3] Human Anatomy and Physiology
Concept: Structure and Functions of Blood
[5]1.7 | Choose the correct answer from the options given below:
[1]1.7.1

Cretinism and Myxoedema are due to

A. Hypersecretion of thyroxin

B. Hypersecretion of growth hormone

C. Hyposecretion of thyroxin

D. Hyposecretion of growth hormone

Chapter: [3] Human Anatomy and Physiology
Concept: Endocrine System - Gland
[1]1.7.2

Which of the following is not a natural reflex action?

A. Knee-jerk

B. Blinking of eyes due to strong light

C. Salivation at the sight of food

D. Sneezing when any irritant enters the nose

Chapter: [21] Neural Control and Coordination (Part B)
Concept: Reflex Action and Reflex Arc
[1]1.7.3

After mitotic cell division, a female human cell will have

A. 44 + XX chromosomes

B. 44 + XY chromosomes

C. 22 + X chromosomes

D. 22 + Y chromosomes

Chapter: [1] Basic Biology
Concept: Significance and Major Differences Between Mitotic and Meiotic Division
[1]1.7.4

The antibiotic penicillin is obtained from

A. Protozoan

B. Bacteria

C. Virus

D. Fungus

Chapter: [4] Physical Health and Hygiene
Concept: First Aid - Basic Principles of First Aid
[1]1.7.5

The site of maturation of human sperms is the

A. Seminiferous tubule

B. Interstitial cells

C. Epididymis

D. Prostate gland

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings
[5]1.8 | State the exact location of the following:
[1]1.8.1

The exact location of the tricuspid valve

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Circulatory System
[1]1.8.2

The exact location of the Amnion

Chapter: [3] Human Anatomy and Physiology
Concept: Nutrition and Respiration of the Embryo
[1]1.8.3

The exact location of the Yellow spot

Chapter: [3] Human Anatomy and Physiology
Concept: Sense Organs – Eye and Ear
[1]1.8.4

The exact location of the seminal vesicle

Chapter: [3] Human Anatomy and Physiology
Concept: Elementary Treatment of the Structure and Function of the Kidneys
[1]1.8.5

The exact location of the Adrenal gland

Chapter: [3] Human Anatomy and Physiology
Concept: Endocrine System - Gland
[10]2
[5]2.1 | Differentiate between the following pairs on the basis of what is mentioned within brackets:

Differentiate between Spinal nerves and Cranial nerves (number of nerves)

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

Differentiate between Near vision and Distant vision (shape of the eye lens)

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

Differentiate between Corpus callosum and Corpus luteum (function)

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

Differentiate between Turgor pressure and Wall pressure (explain)

Chapter: [2] Plant Physiology
Concept: Plant - Osmotic Pressure

Differentiate between Disinfectant and Antiseptic (definition)

Chapter: [4] Physical Health and Hygiene
Concept: First Aid - Basic Principles of First Aid
[5]2.2

The diagram below represents the simplified pathway of the circulation of blood. Study the same and answer the questions which follow: 

(i) Name the blood vessels labelled 1 and 2.
(ii) State the function of blood vessels labelled 5 and 8.
(iii) What is the importance of the blood vessel labelled 6?
(iv) Which blood vessel will contain a high amount of glucose and amino acids after a meal?
(v) Draw a diagram of the different blood cells as seen in a smear of human blood.

Chapter: [3] Human Anatomy and Physiology
Concept: Concept of Circulatory System
[10]3
[5]3.1

A candidate in order to study the process of osmosis has taken 3 potato cubes and put them in 3 different beakers containing 3 different solutions. After 24 hours, in the first beaker the potato cube increased in size, in the second beaker the potato cube decreased in size and in the third beaker there was no change in the size of the potato cube. The following diagram shows the result of the same experiment:

(i) Give the technical terms of the solutions used in beakers, 1, 2 and 3.
(ii) In beaker 3, the size of the potato cube remains the same. Explain the reason in brief.
(iii) Write the specific feature of the cell sap of root hairs which helps in absorption of water.
(iv) What is osmosis?
(v) How does a cell wall and a cell membrane differ in their permeability?

Chapter: [2] Plant Physiology
Concept: Plant - Osmotic Pressure
[5]3.2

A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.

(i) What aspect of photosynthesis was being tested?
(ii) Why was the plant placed in the dark before beginning the experiment?
(iii) During the starch test, why was the leaf 

      (1) boiled in water

      (2) boiled in methylated spirit

(iv) Write a balanced chemical equation to represent the process of photosynthesis.
(v) Draw a neat diagram of a chloroplast and label its parts.

Chapter: [2] Plant Physiology
Concept: Concept of Photosynthesis
[10]4
[5]4.1

The diagram given below is a representation of a certain phenomenon pertaining to the nervous system. Study the diagram and answer the following questions:

(i) Name the phenomenon which is being depicted.
(ii) Give the technical term for the point of contact between the two nerve cells.
(iii) Name the parts 1, 2, 3 and 4.
(iv) Write the functions of parts 5 and 6
(v) How does the arrangement of neurons in the spinal cord differ from that of the brain?

Chapter: [3] Human Anatomy and Physiology
Concept: Nervous System - Structure of Neuron
[5]4.2 | Give scientific reasons for the following statements:

Give scientific reasons : Use of CFC is banned in many countries.

Chapter: [5.04] Environmental Issues
Concept: Greenhouse Effect and Climate Change

Give scientific reasons: We cannot distinguish colours in moonlight.

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

Give scientific reasons : Balsam plants wilt during mid-day even if the soil is well watered.

Chapter: [2] Plant Physiology
Concept: Plant - Turgidity and Flaccidity

Give scientific reasons : Carbon monoxide is highly dangerous when inhaled.

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

Give scientific reasons : A person walks clumsily after consuming alcohol

Chapter: [4] Physical Health and Hygiene
Concept: Common Health Problems in India
[10]5
[5]5.1

Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the questions which follow :

(i) Is it a plant cell or an animal cell? Give a reason to support your answer.
(ii) Identify the stage shown.
(iii) Name the stage which follows the one shown here. How is that stage identified?
(iv) How will you differentiate between mitosis and meiosis on the basis of the chromosome number in the daughter cells?
(v) Draw a duplicated chromosome and label its parts.

Chapter: [1] Basic Biology
Concept: Significance and Major Differences Between Mitotic and Meiotic Division
[5]5.2

Name the disease for which the following types of vaccines are given:

Salk’s vaccine

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

Name the disease for which the following types of vaccines are given: 

BCG

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

Give one example of A water pollutant.

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

Give one example of An aquatic plant used in the laboratory to demonstrate O2 liberation during photosynthesis

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

Give one example of An antibiotic

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

Give one example A nitrogenous base in DNA

Chapter: [1] Basic Biology
Concept: Genetics: - Sex Linked Inheritance of Diseases

Expand the following biological abbreviations: ATP

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

Expand the following biological abbreviations: TSH

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

Expand the following biological abbreviations: DPT

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

Expand the following biological abbreviations : DNA

Chapter: [1] Basic Biology
Concept: Genetics: - Sex Linked Inheritance of Diseases
[10]6
[5]6.1

The given diagram represents a nephron and its blood supply. Study the diagram and answer the following questions: 

(i) Label parts 1, 2, 3 and 4.
(ii) State the reason for the high hydrostatic pressure in the glomerulus.
(iii) Name the blood vessel which contains the least amount of urea in this diagram.
(iv) Name the two main stages of urine formation.
(v) Name the part of the nephron which lies in the renal medulla.

Chapter: [3] Human Anatomy and Physiology
Concept: Elementary Treatment of the Structure and Function of the Kidneys
[5]6.2 | Briefly explain the following terms.

Explain Monohybrid cross

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

Explain Biomedical waste

Chapter: [8] Striving for better Environment 1
Concept: Sources of Pollution and Major Pollutant - Soil

Explain Innate immunity.

Chapter: [4] Physical Health and Hygiene
Concept: Concept of Aids to Health

Explain Diapedesis.

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

Explain Hormones.

Chapter: [3] Human Anatomy and Physiology
Concept: Endocrine System - Gland
[10]7
[5]7.1

State any two harmful effects of noise pollution on human health.

Chapter: [5] Pollution
Concept: Pollution - Types of Pollution

Categorise the following activities according to the functions of the Red Cross Society and the WHO:

(1) To suggest quarantine measures to prevent spread of disease

(2) Humanitarian services to victims of war

(3) To educate people in accident prevention

(4) To promote projects for research on disease

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

Write any two major reasons for the population explosion in India.

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

State Mendel’s Law of segregation.

Chapter: [1] Basic Biology
Concept: Genetics: Mendel’s Laws of Inheritance
[5]7.2 | Give technical terms for the following:

Give technical terms for the A method of contraception in which the sperm duct is cut and ligated

Chapter: [3] Human Anatomy and Physiology
Concept: Endocrine System - Gland

Give technical terms for Statistical study of human population

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

Give technical terms for The protective covering of the heart

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

Give technical terms for A sudden heritable change in the gene

Chapter: [1] Basic Biology
Concept: Genetics: - Sex Linked Inheritance of Diseases

Give technical terms for Repeated units of DNA molecule

Chapter: [1] Basic Biology
Concept: Genetics: - Sex Linked Inheritance of Diseases

Give technical terms for The fluid portion of blood

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

Give technical terms for The nerve which transmits impulses from the ear to the brain

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

Give technical terms for Group of hormones which influence other endocrine glands to produce hormones

Chapter: [3] Human Anatomy and Physiology
Concept: Endocrine System - Gland

Give technical terms for Thin walled sac of skin which covers the testes

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

the Biological/technical term for Complete stoppage of menstrual cycle in females

Chapter: [1.03] Human Reproduction
Concept: Menstrual Cycle
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