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Subject :NSO    Class : Class 8

The given figure shows a typical animal cell with its components labelled as 'a – j'.

Identify the labelled components and select the incorrect statement regarding them.

AThe organelles 'e', 'h', 'g' and 'i' are membranebound structures which function in close coordination with one another.
B'f' organelle is responsible for the synthesis of fats inside the cells and it stores Ca2+ for release during muscle contraction.
C'a' and 'b' are selectively permeable membranes.
D'j' is the site for protein synthesis. It allows hereditary message from 'd' to get translated into proteins.


Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 8

A student examined a particular plant cell through its various stages of growth. After making various measurements, he realised that the increase in cell size was largely due to enlargement of the central vacuole rather than an increase in the amount of cytoplasm. Why might this be an advantageous strategy for the cell?

AEnlarging the cytoplasm would make the cell less turgid.
BEnlarging the vacuole would make it unnecessary for the cell wall to stretch.
CEnlarging the vacuole would minimise any lowering of the surface area - volume ratio of the cytoplasm.
DAll of these


Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 8

Select the option that correctly fills the blanks in any two of the given statements.
(i) ______ refers to the plants found in a particular area.
(ii) ______ species are those which are going to be extinct in near term future.
(iii) The lion tailed macaque is included in ______ species in red data book.
(iv) A place rich in ______ species is called hotspot.

A(i) Fauna, (ii) Endangered
B(iii) Endangered, (iv) Endemic
C(i) Flora, (iii) Vulnerable
D(ii) Rare, (iv) Endangered


Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is a.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9
answer is part A

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
b

Ans 2:

Class : Class 8
the answer is "b" actually it depends upon the temperature which is present inside the room. If it is hot then transpiration rate will be faster

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Subject :NSO    Class : Class 3

Study the given flow chart carefully and answer the question.
Which group lists the items that can replace R in the flow chart?



                 P                          Q                        R
AIce cube              Oxygen             Cold Drink
BOxygen                Hydrogen           Water Vapour
CCoca cola               Milk                  Vinegar
DWater Vapour       Oxygen                 Milk


How can the answer be option B? Gases do not have definite shape or volume. Therefore P cannot be oxygen and Q cannot be Hydrogen. Pls clarify

Ans 1:

Class : Class 3
The question is which can replace R. according to the flow chart /r doesn't have definite shape nor volume. So it should be a gas or vapour. the option B has all the items in the form of gas, oxygen, hydrogen and watervapour and is the right answer.

Ans 2:

Class : Class 3
The group listing items that can replace R is Option B. The marking P Q R above the options is an error which we regret and will correct as soon as possible. Thanks for bringing it to our notice.

Ans 3:

Class : Class 4
Thanks for the reply and for rectifying the error

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