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previous year question Of Cell and Cell Division For NDA

previous year question Of Cell and Cell Division

previous year question
Q 2327401381

The sex of a newborn baby is determined by the chromosome inherited from.
NDA Paper 2 2013
(A)

The mother

(B)

The father

(C)

Mothers mother

(D)

Fathers father

Solution:

The sex of a newborn baby is determined by the chromosome inherited from the father. This is because father has two chromosome X and Y and mother has only one chromosome X.
Correct Answer is `=>` (B) The father
Q 2357401384

Consider the following statements regarding osmosis in animal cells
1. If the water potential of the solution surrounding the cell is too high, the cell shrinks.
2. If the water potential of the solution surrounding the cell is too low, the cell swells and bursts.
3. It is important to maintain a constant water potential inside the animal body.
4. In animal cells, water potential far exceeds the solute potential.
Which if the statements given above is/are correct'?
NDA Paper 2 2013
(A)

1 and 2

(B)

Only 3

(C)

Only 4

(D)

2 and 3

Solution:

Osmosis is a type of diffusion in which water molecules diffuse from their higher concentration to lower concentration across a semipermeable membrane. Osmosis is important in animal cells because it allows them to interact with their surrounding environment.
Correct Answer is `=>` (A) 1 and 2
Q 2317501489

Which of the following group is present in animal cells?
NDA Paper 2 2012
(A)

Mitochondria, Cell membrane, Cell wall, Cytoplasm

(B)

Chloroplasts, Cytoplasm, Vacuole, Nucleus

(C)

Nucleus, Cell membrane, Mitochondria, Cytoplasm

(D)

Vacuole, Cell membrane, Nucleus, Mitochondria

Solution:

An animal cell is a form of eukaryotic cell that makes up many tissues in animals. The animal cell is distinct from other eukaryotes. most notably plant cells, as they lack cell walls and chloroplasts, and they have smaller vacuoles if present. There are many different cell types found in animal cells. For instance, there are approximately 21 0 distinct cell types in the adult human body. Cytoplasm is found in both animal and plant cells.
Correct Answer is `=>` (C) Nucleus, Cell membrane, Mitochondria, Cytoplasm
Q 2387601587

Cell membrane is selectively permeable because
NDA Paper 2 2012
(A)

it is made up of selected organic molecules

(B)

it does not allow transport oi some substances from region of higher concentration to the region of lower concentration

(C)

the movement of organic molecules occurs only at specific concentration

(D)

it allows the movement of certain molecules in and out of the cell while the movement of other molecules is prevented

Solution:

A cell membrane is selectively permeable. This is because some materials can pass freely through the cell membrane while others cannot. The cell membrane functions as a barrier that makes it possible for the cytoplasm to maintain a different composition from the material surrounding the ceiL
Correct Answer is `=>` (D) it allows the movement of certain molecules in and out of the cell while the movement of other molecules is prevented
Q 2307701688

Which one among the following nutrients is a structural component of the cell wall of plants?
NDA Paper 2 2012
(A)

Manganese

(B)

Potassium

(C)

Phosphorus

(D)

Calcium

Solution:

A cell membrane is selectively permeable. This is because some materials can pass freely through the cell membrane while others cannot. The cell membrane functions as a barrier that makes it possible for the cytoplasm to maintain a different composition from the material surrounding the ceiL
Correct Answer is `=>` (D) Calcium
Q 2317801789

Which one among the following cell organelle is semi-permeable?
NDA Paper 2 2011
(A)

Cell membrane

(B)

Plasma membrane

(C)

Cell wall

(D)

Nucleus

Solution:

Membranes form boundaries around the cell and sub-cellular organelles. Semipermeable membranes are alive . and selective to their action. Such membranes allow solvent on . one side to move freely but· at the same time resists the movement of solutes.
Correct Answer is `=>` (A) Cell membrane
Q 2337001882

Which one among the following statements regarding cell is not correct?
NDA Paper 2 2011
(A)

Shape and size of cells are related to specific function

(B)

Some cells have changing shapes

(C)

Each cell has its own capacity to perform

(D)

Same type of cells are present in all bocly tissues

Solution:

All organisms have the cell as their basic structural and functional unit, all having essentially the same biochemical machinery and share same genetic pool. But all the cells of different tissue are differentiated.
Correct Answer is `=>` (D) Same type of cells are present in all bocly tissues
Q 2317212180

Biological catalysts in living organisms are known as
NDA Paper 2 2010
(A)

hormones

(B)

vitamins

(C)

steroids

(D)

enzymes

Solution:

An enzyme is essentially a biological catalyst that increases the rate of a biochemical reaction without being permanently altered itself.
Correct Answer is `=>` (D) enzymes
Q 2387123087

Which one of the following cell organelle is responsible for cellular respiration'?
NDA Paper 2 2008
(A)

Endoplasmic reticulum

(B)

Golgi body

(C)

Lysosome

(D)

Mitochondria

Solution:

Mitochondria is the cell organelle concerned principally with the generation of energy to support the various forms of chemical and mechanical work carried out by cell. Its main function is oxidation of glucose into `CO_2`, `H_2O` and energy by process of cell respiration.
Correct Answer is `=>` (D) Mitochondria
 
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