CMYK

*NIEB240609/ /06/K/1*

*NIEB240609/ /06/K/1*NIEB240609/1R1/06/K/1

*NIEB240609/ /06/Y/1*

*NIEB240609/ /06/Y/1*NIEB240609/1R1/06/Y/1

*NIEB240609/ /06/M/1*

*NIEB240609/ /06/M/1*NIEB240609/1R1/06/M/1

*NIEB240609/ /06/C/1*

*NIEB240609/ /06/C/1*NIEB240609/1R1/06/C/1

*NIEB110119/ /06/K/1*

*NIEB110119/ /06/K/1*NIEB110119/1R1/06/K/1

*NIEB110119/ /06/Y/1*

*NIEB110119/ /06/Y/1*NIEB110119/1R1/06/Y/1

*NIEB110119/ /06/M/1*

*NIEB110119/ /06/M/1*NIEB110119/1R1/06/M/1

*NIEB110119/ /06/C/1*

*NIEB110119/ /06/C/1*NIEB110119/1R1/06/C/1

SECTION A [40 MARKS]Q.1 a. Give the technical term for the fol-lowing: [5]1. Statistical study of human population of aregion.2. The part of the internal ear related to the dy-namic balance of the body.3. The soluble protein in the blood plasma re-sponsible for blood clotting4. An aquatic plant used in labs for experimentsrelated to photosynthesis.5. The suppressed allele of a gene.

b. Choose the correct option and write:[5]1. Synthesis phase in the cell cycle is called so,because of the synthesis of more:a. RNA b. RNA and protein c. DNA d. Glu-cose 2. The most primitive ancestor of man isa. Homo habilis b. Cro-magnon c. Neanderthald. Australopithecus3. Marine fish when placed in tap water burstsbecause ofa. endosmosis b. exosmosis c. diffusion d. plas-molysis4. The leaf is dipped in boiling water for 10 min-utes during destarching fora. removing chlorophyll b. killing cells c. Killinggerms d. removing colour5. Higher concentration of ethylene is found in a. green banana b. ripe banana c. fresh bananad. green apple

c. State the main function of the following:[5]

1. Uterus2. Kidney3. Mitral valve4. Cornea5. Root hair

d. Note the relationship between the firsttwo words and suggest the suitableword/words for the fourth place: [5]1. Cones:Iodopsin::Rods:______2. Stomata:Transpration::Hydathodes:______3. Lubb:Atrioventricular valve::Dubb:_______4. Coronary artery:heart::hepatic artery:_______5. Birth rate:natality::death rate:

e. Define the following: [5]1. Genome2. Exudation

3. Diastole4. Hormone5. Deamination

f. Copy and complete the following by fill-ing in the blanks 1 to 5 with appropriatewords/terms/ phrases: [5]

Photosynthesis involves light and dark re-action. During light reaction, the chlorophyllpresent in the ____1___ gets activated by ab-sorbing light energy. This energy splits watermolecules to hydrogen and oxygen and releas-es two electrons. This process is called ___2___.The hydrogen ions are picked up by NADP toform __3____.The ADP is converted to ATP. Thisprocess is called __4___.During the dark phaseglucose is converted to starch. This process iscalled ___5____

g. State the exact location of the following: [5]1. Hydathodes2. Thylakoids3. Incus4. Pancreas 5. Prostate gland

h. Differentiate between the follow-ing: [5]1. RBC and WBC2. Perspiration and transpiration3. Lenticels and stomata4. SAN and AVN5. Artery and vein

SECTION B [40 MARKS]

Q.2 a. The figure shows a leaf after an experi-ment. Observe the figure and answer thequestions that follow. [5]

1. What is the aim of the experiment?2. What colours do parts A and B show after theexperiment? 3. What will be the colour of part C? 4. Which chemical is used for this experimentfor a proper result? b. Draw a neat labeled diagram ofchloroplast. [5]

Q.3 a. Given below is the diagram of humanblood smear. Study the same and answer thequestions that follow. [5]

1. Label the parts 1-4.2. Mention two structural differences between1 and 2. 3. Name the soluble protein present in 4.b. The figure alongside is a root hair. Ob-serve the figure and answer the questionsthat follow. [5]

1. Label the parts 1-4. 2. How do part 2 and 4 help in the absorption ofwater?

3. What would happen if fertilizers are sprin-kled near the root hair?4. What is the process in which these root hairsabsorb?

Q.4 a. Observe the given picture and answerthe questions that follow: [5]

1. Name the kind of pollution.2. List two effects of this pollution.3. List two preventive measures for this pollu-tion.4. List two health problems in India.

b. You have been shown the setup of an exper-iment. Observe the diagram and answer thequestions that follow. [5]

After two hours piston is lifted up:

1. What is the reason for lifting up of piston?2. Name the pressure operating here and defineit.3. Give the property of solution present in thethistle funnel.4. Name the phenomenon which causes liftingup of pistons. Define it.5. Draw a well labeled diagram of a plant cellwhen it is kept in solution mentioned in theabove question (3).

Q.5 a. Given below are the diagrams showingdifferent stages of a physiological processtaking place inside the human female body.

[5]

1. Use the letters given below each diagram toshow the correct order in this process.

2. Where exactly in the human body does thisprocess normally take place?

3. What is the biological term for the fusion?

4. What are the chromosome numbers of theegg and the resultant of fusion respectively?b. Complete the following paragraph with suit-

able words in the spaces 1-5: [5]

Pancreas 1 Diabetes2 3 CretinismAnterior pituitary4 Malfunction of

thyroid gland5 Cortisol Cushing's syndrome

Q.6 a. Answer the following questions. [5]1. What is the role of liver in excretion?2. What is meant by osmoregulation? 3. Why do we urinate frequently in winter?4. What is diuresis? Name two diuretics.b. Observe the below diagram and answer thequestions that follow: [5]

1. Name the parts numbered 1 to 6.2. Which endocrine gland could have beenshown in the figure? 3. The fluid flowing down through part 4 con-tains certain dissolved chemicals. Name oneorganic and one inorganic substance that couldbe present in that fluid.

Question 7.a. The diagram given below represents an eyedefect. Identify the eye defect and draw a neatdiagram to show how it can be rectified usinga suitable lens. [5]

b. Answer the below questions: [5]1. What are autosomes? What is the number ofautosomes in humans?

2. Why is haemophilia more common in malesthan in females?

3. What is mutation? Give two examples of dis-orders due to mutation which could be heredi-tary.

4. What is the difference between a characterand a trait?

These questions and the marks alongside aremeant for practice purpose only. Studentsare advised to check format, syllabus and

marks for Board test papers with theirteachers. Questions have been given by

teachers and NIE is not responsible for them.

06 “Life is not measured by the number of breathswe take, but by the moments that take our

breath away” – Maya Angelou MOCK PAPERS

'Only when PRACTICE is PERFECT will you be able to walk towards EXCELLENCE with ease, says Abhijna Gurukishan, teacher, M G School for Excellence, Bengaluru

Channelise brain power to solve paper with ease

M O C K T E S T P A P E RBIOLOGY, ICSE

CLASS X

Here are a few pointers to score highmarks in the class X ICSE biology pa-per. Set your sights on them.

1. CELL AND CELL DIVISION:1. Difference between plant cell and animalcellAvoid plastids as difference.Absence of cell wall should be mentioned

2. STAGES OF MITOSIS: Remember one identifying feature to bementioned in the diagram as well. Maintain a constant chromosome num-ber in sequencial diagrams. Always draw 'late' stage, not early stagesof cell division.2. Fundamentals of genetics:1. Definition and laws should be learnt as inthe text book.

2. LAWS:When problems are on dihybrid cross, thelaw is always of independent assortment. If problem is on monohybrid cross, thelaw is always of dominance and segrega-tion.

3. ABSORPTION BY ROOTS:1. Definition of Osmosis: Use the term 'their'higher concentration to 'their' lower con-centration with reference to water mole-cules.2. Dilute solution = more water molecules.

Concentrated Solution = Less water mole-cules.

4. TRANSPIRATION & PHOTOSYNTHESIS:1. Experiments must be studied for applica-tion questions.2. Diagram of Chlorophyll – should always

show double membrane.

5. PHYTOHORMONES:- Learn location and four functions for all. For Clinostat experiment, give one pre-caution, even distribution of light to bemaintained. Examples for nastic movementSunflower, Leaves of mimosa, Insectivorousplants.

6. CIRCULATORY SYSTEM.1. Common mistake: Thrombocytes helpin clotting.Correct answer: Thrombocytes initiateclotting.2. Blood vessels leaving and entering heart,liver and kidney must be learnt.

7. NERVOUS SYSTEM1. Movement of impulse is always unidirec-tional i,e from one axon to next cyton.2. Neuron is permeable only at Nodes ofRanvier.

8. ENDOCRINE GLANDS AND REPRODUCTIVESYSTEM:1. Sex hormones are not in the syllabus, butone must necessarily have a brief idea.2. Both front view and sectional view ofreproductive system should be learnt.

ABHIJNA GURUKISHAN, teacher, M G School for

Excellence, Bengaluru

GENERAL INSTRUCTIONS

1) Answer all the questions as per the instrutions

2) Do not exceed the word limit3) Time indicated on the paper refers to the

writing time.4) You will get 15 minutes for reading.

L et’s be honest, we have all beenthrough days when we felt too slug-gish to do anything; when we have

postponed important assignments for an-other time. Procrastination among schoolstudents is very high. One of the biggestreasons why some students score lowergrades than expected in an assignment,is that they postponeit until the lastminute.

Consid-er this sit-u a t i o n .On Mon-day yourc l a s sgets a biga s s i g n -m e n tthat’s dueon Friday.You knowwhen you gethome you shouldstart working on it, but lat-er, you are too busy chilling with yourfriends. Next day, the assignment comesto your mind, but you end up wasting the

entire time tinkering with your smartphone or chatting online. After all it’sTuesday. You still have plenty of time tocomplete the work. On Thursday you aresurprised it’s 10 pm – all of a sudden yourealise your assignment is due nextmorning and you haven’t evenstarted it! And the first thing you

say is, ‘Why don’t teachers ever give usenough time to finish these assignments?’

Overcoming procrastination Overcoming procrastination re-

quires breaking a habit andlearning time manage-

ment skills. The mostimportant step to-

wards changing ahabit is its ac-knowledgement.Once you haveaccepted thisfact, next comethe remedial

steps. Instead ofblaming others,

making excuses orgiving up, try to keep

your promises. Stay fo-cused on completing your

tasks at hand and then take on another com-mitment. Always make a sincere effort tofinish the task irrespective of the outcome.

Harshit Mahajan, class VII, Jainendra Public

School, Pkl

Stitch in time saves nine

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