Biology Semester-1 ICSE Specimen Paper Solved Class-10

Biology Semester-1 ICSE Specimen Paper Solved Class-10.  Step by step solutions of ICSE Class-10 specimen model sample paper .  During solutions of semester-1 Biology specimen paper so that student can achieve their goal in next upcoming exam of council .

Biology Semester-1 ICSE Specimen Paper Solved Class-10

Board ISC
Class  10th (X)
Subject Biology
Topic Semester-1 ICSE Specimen Paper Solved
Syllabus  on bifurcated syllabus (after reduction)
session 2021-22
Question Type  MCQ/ Objective (as prescribe by council)
Total
question
Total- 8 with all parts
Max
mark
40

Biology Semester-1 ICSE Specimen Paper Solved Class-10

Warning :- before viewing solution view Question Paper

Name the following by choosing the correct option:

(a) A pair of corresponding chromosomes of the same shape and size but one from each parent.

1. Autosomes

2. Sex chromosomes

3. Homologous chromosomes

4. Analogous chromosomes

Solution :

3. Homologous chromosomes

 

(b) The factor that does not affect the rate of transpiration.

1. Intensity of light

2. Velocity of wind

3. Carbon dioxide

4. Oxygen

Solution :

4. Oxygen

 

(c) Movement of molecules of a substance from their higher concentration to

lower concentration when they are in direct contact.

1. Diffusion

2. Endosmosis

3. Imbibition

4. Active transport

Solution :

1. Diffusion

 

(d) The complex molecule consisting of a DNA strand and a core of histones.

1. Centrosome

2. Nucleotide

3. Nucleosome

4. Chromosome

Solution :

3. Nucleosome

 

(e) The solvent used to dissolve the chlorophyll pigment while testing a leaf for starch.

1. Soda lime

2. Carbolic acid

3. Methylated spirit

4. Water

Solution :

3. Methylated spirit

 

Question 2

Complete the following statements by choosing the appropriate option for each blank:

(a) During Meiosis _______________ daughter cells are formed.

1. 4

2. 2

3. 8

4. 6

Solution :

1. 4

 

(b) Wooden doors swell up during the rainy season due to ________.

1. Osmosis

2. Diffusion

3. Imbibition

4. Transpiration

Solution :

3. Imbibition

 

(c) The semi permeable membrane in a plant cell is the _______.

1. Cell wall

2. Cell membrane

3. Tonoplast

4. None of the above

Solution :

2. Cell membrane

 

(d) Guttation takes place through_________.

1. Stomata

2. Lenticels

3. Cuticle

4. Hydathodes

Solution :

4. Hydathodes

 

(e) A plant with variegated leaves is _______.

1. Coleus

2. Lotus

3. Peepal

4. Mango

Solution :

1. Coleus

 

Question 3

Choose the correct answer from each of the four options given below:

(a) The pressure exerted by the cell contents on the cell wall:

1. Turgor pressure

2. Partial pressure

3. Wall pressure

4. Osmotic pressure

Solution :

1. Turgor pressure

 

(b) The cell component visible only during cell division:

1. Chromosome

2. Chromoplast

3. Chromatin

4. Centriole

Solution :

1. Chromosome

 

(c) Marine fish when placed under tap water bursts, because of:

1. Endosmosis

2. Exosmosis

3. Diffusion

4. Plasmolysis

Solution :

2. Exosmosis

 

(d) The sites of dark reaction of photosynthesis:

1. Grana

2. Fret

3. Stroma

4. Stoma

Solution :

3. Stroma

 

(e) The alternative forms of the same gene occupying the same position on homologous chromosomes:

1. Chromatids

2. Alleles

3. Autosomes

4. Centromere

Solution :

2. Alleles

 

Question 4

Explain the following terms:

(a) Osmosis

1. Movement of water from their lower concentration to their higher concentration through a semi permeable membrane.

2. Movement of solutes from their lower concentration to their higher concentration through a semi permeable membrane.

3. Movement of water from their higher concentration to their lower concentration through a semi permeable membrane.

4. Movement of water from their higher concentration to their lower concentration through a freely permeable membrane.

Solution :

3. Movement of water from their higher concentration to their lower concentration through a semi permeable membrane.

 

(b) Photolysis

1. Splitting of water molecules into hydrogen ions and oxygen in the presence of light in grana.

2. Splitting of water molecules into hydrogen ions and oxygen in the presence of light in the stroma.

3. Splitting of water molecules into hydrogen ions and oxygen in the absence of light in grana.

4. Splitting of water molecules into hydrogen ions and oxygen in the absent of light in stoma.

Solution :

1. Splitting of water molecules into hydrogen ions and oxygen in the presence of light in grana.

 

(c) Law of segregation

1. The two members of a pair of factors join during the formation of gametes.

2. The two members of a pair of factors separate during the formation of gametes.

3. The two chromosomes of a pair of factors separate during the formation of gametes.

4. The two members of a pair of factors separate during the process of germination.

Solution :

2. The two members of a pair of factors separate during the formation of gametes.

 

(d) Guttation

1. The loss of water in the form of water droplets from the surface of the leaf.

2. The loss of water in the form of water droplets through the stomata.

3. The loss of water in the form of water vapour along the leaf margin.

4. The loos of water in the form of water droplets along the leaf margin.

Solution :

4. The loos of water in the form of water droplets along the leaf margin.

 

(e) Active transport

1. Passage of water from its lower to higher concentration through a cell membrane without any expenditure of energy.

2. Passage of ions from its lower to higher concentration through a cell membrane without any expenditure of energy.

3. Passage of water from its lower to higher concentration through a cell membrane using energy from the cell.

4. Passage of ions from its lower to higher concentration through a cell membrane using energy from the cell

Solution :

4. Passage of ions from its lower to higher concentration through a cell membrane using energy from the cell

 

Question 5

State the exact location of the following: 

(a) Spindle fibres

1. Between the two centrioles

2. Between the two centrosomes

3. Between chromatid and centromere

4. Between two centromeres

Solution :

1. Between the two centrioles

 

(b) Root hair

1. Extension of the cortex

2. Extension of epithelium

3. Extension of epidermis

4. Extension of endodermis

Solution :

3. Extension of epidermis

 

(c) Stomata

1. More the upper surface of dorsi ventral leaves

2. More on the lower surface of the dorsi ventral leaves

3. Both upper and lower surface of the dorsi ventral leaves

4. None of the above.

Solution :

2. More on the lower surface of the dorsi ventral leaves

 

(d) Thylakoids

1. In the inner membrane of the chloroplast

2. Wall of the chloroplast

3. In the chlorophyll

4. In the stroma of the chloroplast

Solution :

2. More on the lower surface of the dorsi ventral leaves

 

(e) Palisade parenchyma

1. Between the upper and lower epidermis of dicot leaves.

2. Between the upper epidermis and spongy parenchyma of dicot leaves.

3. Between the lower epidermis and spongy parenchyma of dicot leaves.

4. Between the upper and lower epidermis of monocot leaves.

Solution :

2. Between the upper epidermis and spongy parenchyma of dicot leaves.

 

Question 6

State the function of the following:

(a) Stroma

1. Site of photolysis of photosynthesis

2. Site of photochemical phase of photosynthesis

3. Site of light dependent phase of photosynthesis

4. Site of light independent phase of photosynthesis

Solution :

4. Site of light independent phase of photosynthesis

 

(b) Guard cells

1. Regulate the closing of stomata

2. Regulate the opening and closing of stomata

3. Regulate the opening of stomata

4. Regulate the process of photosynthesis

Solution :

2. Regulate the opening and closing of stomata

 

(c) Xylem

1. Translocation of food from the leaves to the other parts of the plant.

2. Conduction of food.

3. Conduction of water and food.

4. Conduction of water and minerals from the root to the other parts of the plant.

Solution :

4. Conduction of water and minerals from the root to the other parts of the plant.

 

(d) Chromosomes

1. The carriers of heredity

2. The controlling centre of the cell

3. The site for various chemical reactions

4. Intracellular digestion.

Solution :

1. The carriers of heredity

 

(e) Hydathode

1. Helps in transpiration

2. Helps in guttation

3. Helps in imbibition

4. Helps in transportation of water

Solution :

2. Helps in guttation

 

Question 7

Given below is a diagram representing a stage during mitotic cell division. Answer the questions that follow:

(a) Identify the stage

1. Telophase

2. Prophase

3. Metaphase

4. Anaphase

Solution :

2. Prophase

 

(b) Label part marked ‘X’

1. Centriole

2. Centrosome

3. Centromere

4. Chromatid

Solution :

3. Centromere

 

(c) Name the stage that follows the one shown here

1. Interphase

2. Anaphase

3. Telophase

4. Metaphase

Solution :

4. Metaphase

 

(d) What is the diploid number of chromosomes shown in the diagram?

1. 6

2. 2

3. 4

4. 8

Solution :

3. 4

 

(e) Mention one important feature of this stage

1. Nucleolus reappears

2. Nuclear membrane reappears

3. Nuclear membrane disappears

4. Chromosomes align on the equator

Solution :

3. Nuclear membrane disappears

 

Question 8

(a) Identify the cell organelle

1. Mitochondria

2. Lysosome

3. Ribosome

4. Chloroplast

Solution :

1. Mitochondria

 

(b) Label the parts marked A, B & C

A. 1. Granum 2. Stroma 3. Fret 4. Thylakoid

B. 1. Granum 2. Stroma 3. Fret 4. Thylakoid

C. 1. Granum 2. Stroma 3. Fret 4. Thylakoid

Solution :

A .Option-1. stroma ,

B. Option-2 Granum and

C. Option-3 Thylakoid.

(c) The unit of light absorbed by chlorophyll is_____

1. Proton

2. Photon

3. Electron

4. Neutron

Solution :

2. Photon

Return to Specimen paper semester-1 2022

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Biology Semester-1 ICSE Specimen Paper Solved Class-10

15 thoughts on “Biology Semester-1 ICSE Specimen Paper Solved Class-10”

  1. Many people have complained that the answers are wrong so why you didn’t change it. Also where is the answer of Q – 8 (b)?
    Change the answers NOW!

    Reply
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      Reply

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