NEET Test 98

Result

NEET Test 98

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

Which of the following non-membrane bound organelles are found in both eukaryotic as well as prokaryotic cells?

A
Mitochondrion

B
Ribosome

C
Endoplasmic reticulum

D
Lysosome

Solution

In eukaryotes, ribosomes can commonly be found in the cytosol of a cell, the endoplasmic reticulum or mRNA, as well as the matrix of the mitochondria. Proteins synthesized in each of these locations serve a different role in the cell. In prokaryotes, ribosomes can be found in the cytosol as well.

Hence, the correct option is (B).
Question 2
4 / -1

A wire of length L is drawn such that its diameter is reduced to half of its original diameter. If the initial resistance of the wire were 10Ω, its new resistance would be:

A
40Ω

B
80Ω

C
120Ω

D
160Ω

Solution
Question 3
4 / -1

Identify the correct statement:

A
Split gene arrangement is characteristic of prokaryotes

B
In capping, methyl guanosine triphosphate is added to the 3' end of hnRNA

C
RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria

D
The coding strand in a transcription unit is copied to an mRNA

Solution

RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria this statement is correct.

Split gene arrangement is characteristic of eukaryotes.

In capping 5-methyl guanosine triphosphate is added at 5' end of hnRNA.

At 3' end poly-A tail is added.

The non coding or template strand is copied to an mRNA. RNA polymerase accociate with ρ factor (Rho factor) and it alters the specificity of the RNA polymerase to terminate the processes.

Hence, the correct option is (C).
Question 4
4 / -1

Directions For Questions

Assertion (A): A person goes to high altitude and experiences 'altitude sickness' with symptoms like breathing difficulty and heart palpitations.

Reason (R): Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.

...view full instructions

In the light of the above statements, choose the correct answer from the options given below

A
(A) is false but (R) is true

B
Both (A) and (R) are true and (R) is the correct explanation of (A)

C
Both (A) and (R) are true but (R) is not the correct explanation of (A)

D
(A) is true but (R) is false

Solution

Altitude sickness can be experienced at high altitude where body does not get enough oxygen due to low atmospheric pressure and causes nausea, fatigue and heart palpitations.

So, correct option is (B) as (R) is correct explanation of (A).

Hence, the correct option is (B).
Question 5
4 / -1

The temperatures across two different slabs A and B are of the same length and same crossectional area are at steady state (as shown in the diagram). The ratio of thermal conductivities of A and B is:

A
2 : 3

B
3 : 2

C
1 : 1

D
5: 3

Solution

As given, slabs A and B are of the same length and same crossectional area are at steady state.
Question 6
4 / -1

Which of the following will not act as an antacid?

A
Sodium hydrogen carbonate

B
Magnesium hydroxide

C
Sodium carbonate

D
Aluminum carbonate

Solution

An antacid is a substance that neutralizes stomach acidity and is used to relieve heartburn, indigestion, or an upset stomach. Some antacids have been used in the treatment of constipation and diarrhea. Currently marketed antacids contain salts of aluminum, calcium, magnesium, or sodium.

Sodium carbonate is a chemical compound with the molecular formula Na₂CO₃. It's commonly referred to as washing soda and is used in cleaning products, glass production, as a food additive, and more.

Hence, the correct option is (C).
Question 7
4 / -1

In which of the following animals does the developing embryo have a third germinal layer in between the ectoderm and endoderm?

a. Platyhelminthes

b. Chordates

c. Coelenterates

A
Only a and b

B
Only a and c

C
Only b

D
Only b and c

Solution

A germ layer is a primary layer of cells that forms during embryonic development. The three germ layers invertebrates are particularly pronounced, however, all eumetazoans (animals more complex than the sponge) produce two or three primary germ layers. Some animals, like cnidarians, produce two germ layers (the ectoderm and endoderm) making them diploblastic. Other animals such as chordates produce a third layer (the mesoderm) between these two layers, making them triploblastic. Germ layers eventually give rise to all of an animal’s tissues and organs through the process of organogenesis.

Hence, the correct option is (A).
Question 8
4 / -1

Vegetative propagation in Pistia occurs by:

A
Offset

B
Runner

C
Sucker

D
Stolon

Solution

In Pistia (water lettuce) vegetative propagation occurs by offset where one intemode long runners grows horizontally along the soil surface and gives rise to new plants either from axillary or terminal buds.

Hence, the correct option is (A).
Question 9
4 / -1

Cells of ____ tissue are living, show angular wall thickenings and provide mechanical support.

A
Xylem

B
Sclerenchyma

C
Collenchyma

D
Depidermis

Solution

Collenchyma, part of the ground tissue, is a simple living tissue found in plants. Collenchyma layer is generally found below epidermis of the plant. They are either found in a patch manner or even distributed throughout. The cell wall of collenchyma tissue cells is thickened at corner due to higher deposition of cellulose, pectin and hemicellulose. The cells are generally spherical or polygonal in shape. This tissue provides mechanical support to the young stem and leaf.

Parenchyma is a type of simple permanent tissues forming a major component of the tissues of plant. These cells are in various shapes like oval, round, polygonal etc. with a thin cell wall made of cellulose. These cells perform functions like storage, photosynthesis, secretion.

The simple permanent tissue consisting of dead cells without protoplast is called sclerenchyma. These cells are long and narrow with lignified cell wall. The thick-walled, elongated pointed cells form the sclerenchyma fibres and the spherical, oval shaped cell with highly thickened cell wall and narrow cavity form the sclerenchyma sclereids.

Hence, the correct option is (C).
Question 10
4 / -1

The figure below shows three identical springs A, B, and C. When a 4kg mass is hung on A, it descends by 1cm. When a 6kg mass is hung on C, it will descend by:

A
1.5 cm

B
3 cm

C
4.5 cm

D
6 cm

Solution