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Question Paper Solutions - Science and Technology - 2 2013 - 2014-S.S.C-10th Maharashtra State Board (MSBSHSE)


Marks: 40
[10]1
[5]1.1
[3]1.1.1 | Find the odd one out:

Pancreas, Gall bladder, Glomerulus, Liver

Chapter: [2.01] Life Processes
Concept: Nutrition - Nutrition in Human Beings

C2H4, C4H10, C3H8, CH4

Chapter: [1.04] Carbon Compounds
Concept: Versatile Nature of Carbon - Nomenclature of Carbon Compounds
[3]1.1.2

Match the following:

Column A Column B
(i) Stigma (a) Neuron
(ii) Pepsin (b) Carpel
(iii) Dendrites (c) Protein
(d) Stamen

 

Chapter: [5] The Life Cycle
Concept: Sexual Reproduction in Flowering Plants
[5]1.2 | Rewrite the following statements by selecting the correct options:
[1]1.2.1

Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium

Chapter: [1] Understanding Metals and Non-Metals
Concept: Metals and Nonmetals - Chemical Properties of Metals - Reactivity Series
[1]1.2.2

…………. is a mode of asexual reproduction.
(a) Cloning
(b) Budding
(c) Pollination
(d) Germination

Chapter: [5] The Life Cycle
Concept: Reproduction - Modes of Reproduction Used by Single Organisms - Budding
[1]1.2.3

The percentage of water absorbed by raisins is calculated on dividing …………. by initial weight.
(a) Final weight
(b) Increased weight
(c) Decreased weight
(d) None of the above

Chapter: [2.01] Life Processes
Concept: Concept of Transportation
[1]1.2.4

Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome

Chapter: [3] Life's Internal Secrets
Concept: Concept of Respiration
[1]1.2.5

…………. is not essential for photosynthesis.
(a) Oxygen
(b) Carbon dioxide
(c) Light
(d) Chlorophyll

Chapter: [3] Life's Internal Secrets
Concept: Nutrition in Plants
[10]2 | Answer any five of the following:
[2]2.1

Give any two differences between alkanes and alkenes.

Chapter: [1.04] Carbon Compounds
Concept: Versatile Nature of Carbon - Saturated and Unsaturated Carbon Compounds
[2]2.2

Write two methods of preventing the rusting of iron.

Chapter: [1.03] Metals and Non Metals
Concept: Corrosion and Its Prevention
[2]2.3

Write the functions of the following organs of reproduction:
a. Ovaries
b. Seminal vesicle and prostate glands

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings
[2]2.4

Draw a neat labelled diagram of vertical section of the human heart.

Chapter: [2.01] Life Processes
Concept: Concept of Transportation
[2]2.5

Write a short note on pressure cooker.

Chapter: [7] Striving for Better Environment 2
Concept: Use of Efficient and Eco-friendly Technology
[2]2.6

Explain the term haemodialysis.

Chapter: [3] Life's Internal Secrets
Concept: Concept of Excretion
[15]3 | Answer any five of the following:
[3]3.1

Give the IUPAC names of the following compounds:
CH3CH2CH2OH

Chapter: [1.04] Carbon Compounds
Concept: Versatile Nature of Carbon - Nomenclature of Carbon Compounds

Give the IUPAC names of the following compounds:

HCOOH

Chapter: [1.04] Carbon Compounds
Concept: Versatile Nature of Carbon - Nomenclature of Carbon Compounds

Give the IUPAC names of the following compounds:

CH3-CH=CH-CH3

Chapter: [1.04] Carbon Compounds
Concept: Versatile Nature of Carbon - Nomenclature of Carbon Compounds
[3]3.2

Classify the following as voluntary and involuntary actions:
(a) Coughing
(b) Food getting digested
(c) Moving a table
(d) Kicking a ball
(e) Beating of heart
(f) Flying a kite

Chapter: [4] The Regulators of Life
Concept: The Central Nervous System
[3]3.3

What is ‘3R’ mantra?

Chapter: [8] Striving for better Environment 1
Concept: Sustainable Use of Resources

Write ‘3R’ mantra significance

Chapter: [8] Striving for better Environment 1
Concept: Sustainable Use of Resources
[3]3.4

What do you mean by DNA?

Chapter: [2.03] Reproduction
Concept: Reproduction - Introduction

What is the peculiarity of the ‘DNA’ structure?

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

Name the scientist who put forward the most popular model of DNA.

Chapter: [2.03] Reproduction
Concept: Reproduction - Introduction
[3]3.5

Complete the following table to get the differences between asexual and sexual reproduction:

Characteristics Asexual Reproduction Sexual Reproduction
Number of parents involved ........................... ..............................
Type of cells involved Somatic cells Germ cells
Type of cell division ............................ Meiosis and mitosis
Chapter: [5] The Life Cycle
Concept: Sexual Reproduction
[3]3.6

State the different types of neurons.

Chapter: [4] The Regulators of Life
Concept: Human Nervous System

Explain their neurons function.

Chapter: [4] The Regulators of Life
Concept: The Central Nervous System
[5]4 | Attempt any one of the following:
[5]4.1

In the extraction of aluminium: Name the process of concentration of bauxite.

Chapter: [1] Understanding Metals and Non-Metals
Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series

In the extraction of aluminium Write the cathode reaction in electrolytic reduction of alumina.

Chapter: [1] Understanding Metals and Non-Metals
Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series

In the extraction of aluminium: Write the function and formula of cryolite in the extraction of aluminium.

Chapter: [1] Understanding Metals and Non-Metals
Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series

In the extraction of aluminium: Draw the diagram for the extraction of aluminium.

Chapter: [1] Understanding Metals and Non-Metals
Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series
[5]4.2

Answer the following questions related to sex determination in human beings:
i. What is sex chromosome?
ii. How many pairs of chromosomes are present in human beings?
iii. How is the sex of the human offspring determined?
iv. Draw a diagram depicting sex determination in man.

Chapter: [2.01] Principles of Inheritance and Variation
Concept: Sex Determination - Sex Determination in Humans
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