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Question Bank Solutions for ISC (Commerce) Class 11 - CISCE

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Pyruvate undergoes oxidative decarboxylation to produce _____________.

(a) 2-PGA

(b) α-Ketoglutarate

(c) Succinyl-Co-A

(d) Acetyl-Co-A

[4.04] Respiration in Plants
Chapter: [4.04] Respiration in Plants
Concept: Phases of Respiration: Glycolysis

Prevention of substances from leaking across the tissue is provided by ______.

[2.03] Structural Organisation in Animals
Chapter: [2.03] Structural Organisation in Animals
Concept: Animal Tissues > Epithelial Tissue

Write the differences between: Open and closed system of circulation

[5.03] Body Fluids and Circulation
Chapter: [5.03] Body Fluids and Circulation
Concept: Circulatory Pathways > Human Circulatory System

Sketch and label the ‘Ultrastructure of Chloroplast’.

[4.03] Photosynthesis in Higher Plants
Chapter: [4.03] Photosynthesis in Higher Plants
Concept: Site of Photosynthesis

Answer briefly the following questions:

State any two benefits of e-business to the buyers.

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of E-business

Answer the following question:

What is a Dictaphone?

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of E-business

With reference to the Post Office, expand the following:

 VPP

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of E-business

With reference to the Post Office, expand the following:

PIN

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of E-business

Answer briefly the following questions:

With reference to post office services, write the expanded forms of:
(a) RMS
(b)TMO

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of E-business

Briefly explain four advantages of the following: Telefax

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of E-business

Answer the following question:

How does a business reply card help a business concern?

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of E-business

Explain the Post Box Service provided by Post Office. State any two advantages to the organisation which uses this service.

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of E-business

Answer briefly the following questions:

What is meant by outsourcing?

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Concept of Outsourcing

Answer briefly the following questions:

Expand the following : KPO

[4] Emerging Modes of Business
Chapter: [4] Emerging Modes of Business
Concept: Knowledge Process Outsourcing (KPO)

Aggregate supply is equal to ______.

[1] Understanding Economics
Chapter: [1] Understanding Economics
Concept: Concept of Aggregate Demand and Aggregate Supply

What is meant by Equilibrium income?

[1] Understanding Economics
Chapter: [1] Understanding Economics
Concept: Concept of Aggregate Demand and Aggregate Supply

If the function `f(x) = sqrt(2x - 3)` is invertible then find its inverse. Hence prove that `(fof^(-1))(x) = x`

[1.02] Relations and Functions
Chapter: [1.02] Relations and Functions
Concept: Types of Functions

Answer carefully, with reasons:

What are the answers to (a) and (b) for an inelastic collision?

[4] Work, Power and Energy
Chapter: [4] Work, Power and Energy
Concept: Work Done by a Constant Force and a Variable Force

Attempt to formulate your ‘moral’ views on the practice of science. Imagine yourself stumbling upon a discovery, which has great academic interest but is certain to have nothing but dangerous consequences for the human society. How, if at all, will you resolve your dilemma?

[1] Physical World and Measurement
Chapter: [1] Physical World and Measurement
Concept: Physics Related to Technology and Society

An aircraft executes a horizontal loop at a speed of 720 km/h with its wings banked at 15°. What is the radius of the loop?

[3] Laws of Motion
Chapter: [3] Laws of Motion
Concept: Newton’s Second Law of Motion
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