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Question Paper Solutions - Science and Technology - 2 2015 - 2016-S.S.C-10th Maharashtra State Board (MSBSHSE)


Marks: 40
[10]1
[5]1.1 | Answer the following sub-questions :
[1]1.1.1

Fill in the blank and rewrite the completed statement: 
.................... is the largest gland in the body.

Chapter: [2.01] Life Processes
Concept: Nutrition - Nutrition in Human Beings
[1]1.1.2

Find the odd one out and write it: vagina, uterus, vas deferens, ovary

Chapter: [5] The Life Cycle
Concept: Reproduction in Human Beings
[1]1.1.3

State whether the statement is true or false:
Aquatic animals breathe at a slower rate than the terrestrial animals.

Chapter: [3] Life's Internal Secrets
Concept: Concept of Respiration
[1]1.1.4

Considering the relationship in the first pair, complete the second pair: 
rr : Homozygous : : Rr : ....................

Chapter: [1] Basic Biology
Concept: Genetics: Mendel’s Laws of Inheritance
[1]1.1.5

Name the following: Main ore of aluminium.

Chapter: [1] Understanding Metals and Non-Metals
Concept: Occurrence of Metals - Extracting Metals Towards the Top of the Activity Series
[5]1.2 | Rewrite the following statements by selecting the correct options:
[1]1.2.1

.................... liberated when acetic acid reacts with sodium metal.
(a) Hydrogen
(b) Chlorine
(c) Oxygen
(d) Nitrogen

Chapter: [1.03] Metals and Non Metals
Concept: Metals and Nonmetals - Chemical Properties of Metals - When Metals React with Acids
[1]1.2.2

For binary fission, Amoeba required .................... parent cells.
(a) Three
(b) Two
(c) One
(d) Zero

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

A solution of CuSO4 in water is .................... in colour.
(a) Pink
(b) Blue
(c) Colourless
(d) Green

Chapter: [1.03] Metals and Non Metals
Concept: Metals and Nonmetals - Chemical Properties of Metals - Metals React with Solutions of Other Metal Salts
[1]1.2.4

Raisins are formed by drying grapes. The process that takes place during formation of raisins from grapes is .................... .
(a) Absorption
(b) Osmosis
(c) Diffusion
(d) Dehydration

Chapter: [2.01] Life Processes
Concept: Concept of Transportation
[1]1.2.5

Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild

Chapter: [1.04] Carbon Compounds
Concept: Important Carbon Compounds - Ethanoic Acid (Acetic acid)
[10]2 | Attempt any five of the following:
[2]2.1

Differentiate between voluntary and involuntary movements.

Chapter: [4] The Regulators of Life
Concept: Human Nervous System
[2]2.2

What is the peculiarity of the ‘DNA’ structure?

Chapter: [1] Basic Biology
Concept: Genetics: Mendel’s Laws of Inheritance
[2]2.3

Draw a well-labelled diagram of longitudinal section of a flower.

Chapter: [5] The Life Cycle
Concept: Sexual Reproduction in Flowering Plants
[2]2.4

Give scientific reason : Roots of plants grow away from light

Chapter: [4] The Regulators of Life
Concept: Coordination in Plants - Introduction
[2]2.5

Write any two measures to conserve water.

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

What are fossils?

Chapter: [2.04] Heredity and Evolution
Concept: Evolution and Classification - Fossils
[15]3 | Attempt any five of the following:
[3]3.1

What is an alloy?

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

Give two examples of alloys with their chemical composition.

Chapter: [1.03] Metals and Non Metals
Concept: Corrosion and Its Prevention
[3]3.2

Explain sex determination in human beings.

Chapter: [2.01] Principles of Inheritance and Variation
Concept: Sex Determination - Sex Determination in Humans
[3]3.3

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
[3]3.4

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]3.5

Metal A has electronic configuration (2, 8, 1) and metal B has (2, 8, 8, 2). Which is more reactive? Why? Identify these metals.

Chapter: [1] Understanding Metals and Non-Metals
Concept: Metals and Nonmetals - Chemical Properties of Metals - Reactivity Series
[3]3.6

Explain the disadvantages of a large family size.

Chapter: [8] Striving for better Environment 1
Concept: Sustainable Use of Resources
[5]4 | Attempt any one of the following:
[5]4.1

Given below are the end products of different reactions involving glucose.

Write the reaction number in front of the following:
(i) Anaerobic reaction =
(ii) Reaction in the human muscles =
(iii) Aerobic respiration =
(iv) Reaction in the plant cells =
(v) Reaction in the liver

Chapter: [3] Life's Internal Secrets
Concept: Concept of Respiration
[5]4.2

What is a homologous series?

Chapter: [2] Amazing World of Carbon Compounds
Concept: Versatile Nature of Carbon - Homologous Series

State any four characteristics of a homologous series

Chapter: [2] Amazing World of Carbon Compounds
Concept: Versatile Nature of Carbon - Homologous Series
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