datavorous/entrance-exam-dataset huggingface dataset:
Mark the correct option with respect to tissue, location, and its function.

Options:
A

Tissue	Location	Function

Reticular tissue	Spleen	Secretion

B

Tissue	Location	Function

Brush bordered cuboidal epithelium	PCT	Reabsorption

C

Tissue	Location	Function

Neurosensory epithelium	Taste buds and cornea	Conversion of all types of electrical stimuli to chemical stimuli

D

Tissue	Location	Function
Glandular epithelium	Lining of blood vessels	To handle blood pressure

The correct answer is:

Tissue	Location	Function

Brush bordered cuboidal epithelium	PCT	Reabsorption

Solution:
Reticular tissue helps in filtering blood, removing antigens, and old RBCs in the spleen. The cornea has no sensory epithelium. Simple squamous epithelium lines the blood vessels.

Topic: Biology, Structural Organisation in Animals, NEET
Mark the correct option w.r.t. hydroponics.

Options:
A It can avoid problem of soil borne pathogens.
B In 1860, Julius von Sachs, a prominent German botanist, demonstrated, it for the first time.
C It helps in determining a mineral solution suitable for the plant growth was obtained.
D All of these

The correct answer is:
All of these

Solution:
In 1860, Julius von Sachs, a prominent German botanist, demonstrated, for the first time, that plants could be grown to maturity in a defined nutrient solution in complete absence of soil. This technique of growing plants in a nutrient solution is known as hydroponics. The essence of all these methods involves the culture of plants in a soil-free, defined mineral solution.

Topic: Biology, Mineral Nutrition, NEET
Mark the correct option (w.r.t. hydroponics)

Options:
A It can avoid problem of soil borne pathogens
B It avoids problem of weeding
C Out of season vegetables and flowers can be obtained
D All of these

The correct answer is:
All of these

Solution:
The growing of plants with their roots in dilute solutions of mineral salts instead of soil led to increased understanding of plant nutrition. This cultivation of plants by placing the roots in nutrient solution is called hydroponics.
Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite or gravel.
It can avoid problem of soil borne pathogens. It avoids problem of weeding. Out of season vegetables and flowers can be obtained through hydroponics.

Topic: Biology, Mineral Nutrition, NEET
Mark the correct option w.r.t. rate of reaction.

Options:
A rate = Î´P/Î´t
B rate = ÃP/Ãt
C rate = ÂµT/ÂµP
D rate = Ãt/ÃP

The correct answer is:
rate = δP/δt

Solution:
In an organic chemical reaction, the rate of a physical or chemical process refers to the amount of product formed per unit time. It can be expressed as rate = Î´P/Î´t.

Topic: Chemistry, Biomolecules, NEET
Mark the correct option.

Options:
A Darwinism variation are small and directionless.
B Fitness is the end result of the ability to adapt and gets selected by nature.
C Life does not comes only from pre-existing life
D Mutations are random and directional.

The correct answer is:
Fitness is the end result of the ability to adapt and gets selected by nature.

Solution:
Fitness (survival of the fittest) is a result of the selection and proliferation of only those organisms which were most suitably adapted to the environment and gets selected by nature.

Topic: Biology, Evolution, NEET
Mark the correct options stating the locations of the following centers.

Options:
A

Pneumotaxic centre	Apneustic centre	Dorsal respiratory group	Ventral respiratory group

Pons	Pons	Medulla	Medulla

B

Pneumotaxic centre	Apneustic centre	Dorsal respiratory group	Ventral respiratory group
Pons	Medulla	Pons	Medulla

C

Pneumotaxic centre	Apneustic centre	Dorsal respiratory group	Ventral respiratory group
Medulla	Medulla	Pons	Pons

D

Pneumotaxic centre	Apneustic centre	Dorsal respiratory group	Ventral respiratory group
Pons	Pons	Pons	Medulla

The correct answer is:

Pneumotaxic centre	Apneustic centre	Dorsal respiratory group	Ventral respiratory group

Pons	Pons	Medulla	Medulla

Solution:
The dorsal and the ventral respiratory groups which are concerned with the processes of inhalation and exhalation are present in the medulla and the pneumatic and the apneustic centre which are antagonistic in function and affect the rate of respiration by sending signals to reduce or increase the inspiration are a part of the pons.

Topic: Biology, Neural Control and Coordination, NEET
Mark the correct pair.

Options:
A Migration - Polar bear
B Diapause - Zooplanktons
C Diapause - Desert lizards
D Suspend - Locust

The correct answer is:
Diapause - Zooplanktons

Solution:
A diapause is a form of developmental arrest in zooplanktons that is much like hibernation in higher animals.

Topic: Biology, Organisms and Populations, NEET
Mark the correct statement.

Options:
A mRNA is polycistronic in eukaryotes and monocistronic in prokaryotes.
B mRNA is polycistronic in prokaryotes and monocistronic in eukaryotes.
C mRNA is polycistronic in both eukaryotes and prokaryotes.
D mRNA is monocistronic in both eukaryotes and prokaryotes.

The correct answer is:
mRNA is polycistronic in prokaryotes and monocistronic in eukaryotes.

Solution:
Eukaryotic mRNA doesn't need to be polycistronic, one gene for one polypeptide is viable, however with prokaryotic organisms, it's sensible and economical that all functionally related proteins are synthesised together.

Topic: Biology, Molecular Basis of Inheritance, NEET
Mark the correct statement with respect to ZIFT.

Options:
A Ova collected from a female donor are transferred to the fallopian tube to facilitate zygote formation.
B Woman's egg is fertilized outside the body and then zygote is transferred to the fallopian tube.
C Woman's egg is fertilized outside the body and then zygote is transferred to the uterus.
D Ova collected from a female donor and transferred to the uterus.

The correct answer is:
Woman's egg is fertilized outside the body and then zygote is transferred to the fallopian tube.

Solution:
In ZIFT (Zygote intrafallopian transfer) the zygote, formed in vitro, or early embryo up to 8-blastomere is transformed into fallopian tube.

Topic: Biology, Human Reproduction, NEET
Mark the correct statement/s about arithmetic growth.

Options:
A In mitosis, only one daughter cell continues to divide while the other differentiates and matures.
B Lt = L0 + rt
C The simplest expression of this growth is exemplified by a root elongating at a constant rate.
D All of the above

The correct answer is:
All of the above

Solution:
In arithmetic growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and matures. The simplest expression of arithmetic growth is exemplified by a root elongating at a constant rate. Look at Figure 15.5. On plotting the length of the organ against time, a linear curve is obtained. Mathematically, it is expressed as
Lt = L0 + rt
Lt = length at time ‘t’
L0 = length at time ‘zero’
r = growth rate / elongation per unit time.

Topic: Biology, Plant - Growth and Development, NEET
Mark the correct statements (s).
(i) Manganese exhibits +7 oxidation state
(ii) Zinc forms coloured ions
(iii) [CoF6]3- is diamagnetic
(iv) Sc forms +4 oxidation state
(v) Zn exhibits only +2 oxidation state

Options:
A (i) and (ii)
B (ii) and (iv)
C (iii) and (iv)
D (i) and (v)

The correct answer is:
(i) and (v)

Solution:
Outer electronic configuration of Mn is 3d54s2 which means it exhibits +7 oxidation state
Zinc does not form coloured ions as it has completely filled 3d104s2 configuration.
In [CoF6]3-,Co3+ is a d7 system. Fluoride is a weak field ligand and hence it can not cause pairing of electrons.
Sc can form a maximum of +3 oxidation state as it has an outer electronic configuration of 3d14s2 .
Zn exhibits only +2 oxidation state as this O.S. is the most stable one for it.
Hence i, v are correct while ii,iii,iv are incorrect.

Topic: Chemistry, Redox Reactions, NEET
Mark the incorrect answer regarding the number of structure in cockroach.

Options:
A Male has three phallomeres
B 14-16 eggs in each ootheca
C Each compound eye consist of 2000 ommatidia
D 40 - 80 malpighian tubules

The correct answer is:
40 - 80 malpighian tubules

Solution:
Cockroaches belong to Phylum Arthropoda. The body is divided into head, thorax, and abdomen. Head bears compound eyes. These eyes consist of many small structures known as ommatidia. These are around 2000 in number. These are responsible for mosaic vision. Male cockroaches show the presence of three phallomeres which represents external genitalia and these are made up of chitin. Female cockroaches lay fertilized eggs in the form of oothecae. On an average female lays around 9-10 oothecae and each ootheca has 14-16 eggs. Excretion is by Malpighian tubules. These do not form separate system bu are associated with alimentary canal. Malpighian tubules are seen at the junction of mid-gut and hind gut and are 100-150 in number.

Topic: Biology, Structural Organisation in Animals, NEET
Mark the incorrect differences between eukaryotic and prokaryotic transcription.

I. In eukaryotes, the genes are split having exons and introns while in prokaryotes it isn't.
II. The structural gene which is to be transcribed is generally mono-cistronic in prokaryotes and poly-cistronic in eukaryotes.
III. The RNA formed with the help of RNA polymerase in eukaryotes requires further processing to function as m-RNA while in prokaryotes it is directly used as m-RNA.
IV. In eukaryotes, RNA polymerase binds to the promoter region while in prokaryotes it binds to the operator region.

Options:
A I and IV
B II and III
C II and IV
D III and IV

The correct answer is:
II and IV

Solution:
In eukaryotes, the genes are split having exons (coding regions) and introns (non-coding regions) while in prokaryotes non-coding regions within coding regions do not occur. The structural gene which is to be transcribed is monocistronic in eukaryotes and polycistronic in prokaryotes. The RNA formed with the help of RNA polymerase in eukaryotes requires further processing (splicing, capping, and tailing) to function as m-RNA while in prokaryotes it is directly used as m-RNA. In both prokaryotes and eukaryotes, RNA polymerase binds to the promoter region

Topic: Biology, Molecular Basis of Inheritance, NEET
Mark the incorrect option w.r.t. nitrifying bacteria

Options:
A Nitrococcus
B Pseudomonas
C Nitrobacter
D Nitrosomonas

The correct answer is:
Pseudomonas

Solution:
Ammonia is first oxidised to nitrite by the bacteria Nitrosomonas and/or Nitrococcus. The nitrite is further oxidised to nitrate with the help of the bacterium Nitrobacter. These steps are called nitrification.
These nitrifying bacteria are chemoautotrophs. The nitrate thus formed is absorbed by plants and is transported to the leaves. In leaves, it is reduced to form ammonia that finally forms the amine group of amino acids. Nitrate present in the soil is also reduced to nitrogen by the process of denitrification. Denitrification is carried by bacteria Pseudomonas and Thiobacillus.

Topic: Biology, Mineral Nutrition, NEET
Mark the incorrect option.

Options:
A Carbon: % weight in earth's crust < % weight in human body
B Magnesium: % weight in earth's crust > % weight in human body
C Sulphur: % weight in earth's crust < % weight in human body
D Sodium: % weight in earth's crust < % weight in human body

The correct answer is:
Sodium: % weight in earth's crust < % weight in human body

Solution:
The percentage of elements vary in earth's crust and Human body.
Carbon is 0.03 in Earth but 18.5 in Human body. Magnesium is 2.1 in Earth but 0.1 in Human body. Sulphur is 0.03 in Earth and 0.3 in Human body. Sodium is 2.8 in Earth and 0.2 in Human body.

Topic: Chemistry, Biomolecules, NEET
Mark the incorrect pair.

Options:
A Bt cotton - Genes from Agrobacterium
B SCID - ADA deficiency
C Rosie - Î± lactalbumin
D Ely-Lily - Humulin

The correct answer is:
Bt cotton - Genes from Agrobacterium

Solution:
Bt cotton has been genetically modified by the insertion of one or more genes from a common soil bacterium, Bacillus thuringiensis. These genes encode for the production of insecticidal proteins, and thus, genetically transformed plants produce one or more toxins as they grow.

Topic: Biology, Biotechnology and Its Applications, NEET
Mark the incorrect statement about chlorofluorocarbons.

Options:
A The balance between the production and degradation of ozone has been affected by CFCs.
B CFCs are commonly used as refrigerants.
C CFCs are broken down into Cl atoms by UV rays in the troposphere, from where they travel upwards to the stratosphere and degrade the ozone layer.
D Cl atoms act as catalysts in the reaction, therefore they do not get consumed and continue to affect the ozone level.

The correct answer is:
CFCs are broken down into Cl atoms by UV rays in the troposphere, from where they travel upwards to the stratosphere and degrade the ozone layer.

Solution:
There should be a balance between production and degradation of ozone in the stratosphere. Of late, the balance has been disrupted due to enhancement of ozone degradation by chlorofluorocarbons (CFCs). CFCs find wide use as refrigerants. CFCs discharged in the lower part of the atmosphere move upwards and reach the stratosphere. In the stratosphere, UV rays act on them releasing Cl atoms. Cl degrades ozone, releasing molecular oxygen. With these atoms acting merely as catalysts, Cl atoms are not consumed in the reaction. Hence, whatever CFCs are added to the stratosphere, they have permanent and continuing effects on ozone levels.

Topic: Biology, Environmental Issues, NEET
Mark the incorrect statement for Deuteromycetes.

Options:
A Commonly known as imperfect fungi
B The mycelium is septate and branched.
C Large number of them are decomposers.
D Sexual reproduction through syngamy.

The correct answer is:
Sexual reproduction through syngamy.

Solution:
Sexual reproduction is absent in deuteromycetes and only the asexual or vegetative phases of these fungi are known. When the sexual forms of these fungi were discovered they were moved into classes they rightly belong to. It is also possible that the asexual and vegetative stage have been given one name (and placed under deuteromycetes) and the sexual stage another (and placed under another class). Later when the linkages were established, the fungi were correctly identified and moved out of deuteromycetes.

Topic: Biology, Biological Classification, NEET
Mark the incorrect statement for DNA.

Options:
A The ratios between Adenine and Thymine and Guanine and Cytosine are constant and equal to one in dsDNA.
B DNA is an acidic substance present in the nucleus was first identified by Friedrich Meischer in 1869.
C The X-ray diffraction data was used for discovery of the DNA
D Two strands are anti-parallel to each other.

The correct answer is:
The X-ray diffraction data was used for discovery of the DNA

Solution:
In 1953, James Watson and Francis Crick, based on the X-ray diffraction data produced by Maurice Wilkins and Rosalind Franklin, proposed a very simple but famous Double Helix model for the structure of DNA. They have not used this data for the discovery of DNA. DNA as an acidic substance present in the nucleus was first identified by Friedrich Meischer in 1869.

Topic: Biology, Molecular Basis of Inheritance, NEET
Mark the incorrect statement in context to O₂ binding to Hb

Options:
A Higher pH
B Lower temperature
C Lower pCO₂
D Higher pO₂

The correct answer is:
Higher pO₂

Solution:
Higher pO₂ increases the affinity of binding of oxygen while rest do not.

Topic: Biology, Breathing and Exchange of Gases, NEET
Mark the incorrect statement with respect to single-cell protein.

Options:
A It is one of the alternate source of protein for animal and human nutrition
B It involves growing of unicellular microbes only on industrial scale
C They can be easily grown on materials like waste water.
D Such utilisation also reduces enviromental pollution.

The correct answer is:
It involves growing of unicellular microbes only on industrial scale

Solution:
Single cell protein involves growing of unicellular and multicellular microbes on industrial scale which is used as alternate source of protein for animal and human nutrition. They can be easily grown on material like waste water from potato processing, sugar industry etc. and also reduces environmental pollution.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Mark the non-invasive technique without any side effects to diagnose the cancer of internal organs.

Options:
A Radiography
B Computed tomography
C Histopathological studies
D Magnetic resonance imaging (MRI)

The correct answer is:
Magnetic resonance imaging (MRI)

Solution:
MRI uses strong magnetic fields and non-ionising radiations to accurately detect pathological and physiological changes in the living tissue. Thus, it can be used multiple times without any harmful side effects.

Topic: Biology, Human Health and Diseases, NEET
Mark the ODD one out.

Options:
A Oxaloacetic acid
B Malic acid
C Citric acid
D Succinic acid

The correct answer is:
Citric acid

Solution:
Citric acid is a 6C acid whereas the other three acids are 4C acids.

Topic: Biology, Respiration in Plants, NEET
Mark the pair of substances among the following which is essential for coagulation of blood.

Options:
A Heparin and calcium ions
B Calcium ions and platelet factors
C Oxalates and citrates
D Platelet factors and heparin

The correct answer is:
Calcium ions and platelet factors

Solution:
Calcium ions and platelet factors are required for Blood coagulation.

Topic: Biology, Body Fluids and Circulation, NEET
Mark the right statement among the following.

Options:
A Trypsinogen is an inactive enzyme.
B Trypsinogen is secreted by the intestinal mucosa.
C Enterokinase is secreted by the pancreas.
D Bile contains trypsin.

The correct answer is:
Trypsinogen is an inactive enzyme.

Solution:
Pancreatic juice contains many enzymes in inactive form. These enzymes are Trypsinogen, chymotrypsinogen. procarboxypeptidase, lipases, amylases, nucleases. Enzyme from the small intestine i.e.Enterokinase activates trypsinogen into trypsin which further activates other pancreatic enzymes. Bile is the only juice which does not contain any enzyme.

Topic: Biology, Digestion and Absorption, NEET
Mark the true statement among the following with reference to normal breathing

Options:
A Inspiration is a passive process whereas expiration is active
B Inspiration is an active process, whereas expiration is passive
C Inspiration and expiration are active processes
D Inspiration and expiration are passive processes

The correct answer is:
Inspiration is an active process, whereas expiration is passive

Solution:
Inspiration is an active process, whereas expiration is a passive process as no energy is required in expiration.

Topic: Biology, Breathing and Exchange of Gases, NEET
Mark the true statement among the following with reference to normal breathing.

Options:
A Inspiration is a passive process where as expiration is active
B Inspiration is an active process where as expiration is passive
C Both inspiration and expiration are active processes
D Both inspiration and expiration are passive processes

The correct answer is:
Inspiration is an active process where as expiration is passive

Solution:
During inspiration and expiration external intercostal muscles and diaphragm are involved. Movement of gases is due to Boyle's law. (Pressure is inversely proportional to volume.) During inspiration the pressure of atmospheric oxygen is more as compared to the pressure inside the lungs i.e. there is a negative pressure in the lungs. This is due to the large volume of the lung cavity. This is due to the muscles that contract to use energy which means muscles are performing work Thus inspiration is an active process. During expiration, the muscles of diaphragm relax. The pressure inside the lungs increases than the atmospheric pressure and thus air leaves the lung cavity and expiration takes place. This process does not use energy and hence it is a passive process.

Topic: Biology, Breathing and Exchange of Gases, NEET
Mary is about to face an interview. But during the first five minutes before the interview, she experiences sweating, increased rate of heart beat, respiration etc. Which of the following hormones are responsible for her restlessness?

Options:
A Estrogen and progesterone
B Oxytocin and vasopressin
C Adrenaline and noradrenaline
D Insulin and glucagon

The correct answer is:
Adrenaline and noradrenaline

Solution:
Option (c) is the answer.

Topic: Biology, Chemical Coordination and Integration, NEET
Mary Mallon was a cook by profession and also a carrier of a particular disease. Which test is commonly used for diagnosis of this disease?

Options:
A Monteaux test
B Widal test
C Western blot
D ELISA

The correct answer is:
Widal test

Solution:
A classic case in medicine, that of Mary Mallon nicknamed Typhoid Mary, was a cook by profession and was a typhoid carrier who continued to spread typhoid for several years through the food she prepared. Typhoid is diagnosed by the WIDAL test.

Topic: Biology, Human Health and Diseases, NEET
Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate solution for 100 seconds is (Given : Molar mass of $\mathrm{Cu}: 63 \mathrm{~g} \mathrm{~mol}^{-1}, 1 \mathrm{~F}=96487 \mathrm{C}$ )

Options:
A 0.315 g
B 31.5 g
C 0.0315 g
D 3.15 g

The correct answer is:
0.315 g

Solution:
$\mathrm{Cu}^{2+}(\mathrm{aq})+2 \mathrm{e}^{-} \rightarrow \mathrm{Cu}(\mathrm{s})$
$\begin{aligned} \text { Mass of Cu deposited }(w) & =\frac{M \times i \times t}{n F} \\ & =\frac{63 \times 9.6487 \times 100}{2 \times 96487} \\ & =0.315 \mathrm{~g}\end{aligned}$

Topic: Chemistry, Electrochemistry, NEET, NEET 2024
Mass is non-uniformly distributed over the rod of length l. Its linear mass density varies linearly with length as λ=kx2. The position of centre of mass (from lighter end) is given by-

Options:
A 2l/5
B 3/l
C 3l/4
D 2l/3

The correct answer is:
3l/4

Solution:
Xcm=∫xdm∫dm
Xcm=∫xλdx∫λdx
Xcm=∫01xkx2dx∫01kx2dx
Xcm=l4/4l3/3=34l

Topic: Physics, Center of Mass Momentum and Collision, NEET
Mass % of carbon in ethanol is

Options:
A 52
B 13
C 34
D 90

The correct answer is:
52

Solution:
Ethanol is C2H5OH
Molecular mass =12Ã2+6Ã1+16Ã1
=24+6+16=46
Mass of carbon in ethanol =12Ã2=24
Mass % of carbon =  Mass of carbon Molar mass of compound  × 100
=2446Ã100=52%

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
Mass of glucose $\left(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6\right)$ required to be dissolved to prepare one litre of its solution which is isotonic with $15 \mathrm{~g} \mathrm{~L}^{-1}$ solution of urea $\left(\mathrm{NH}_3 \mathrm{CONH}_2\right)$ is (Given: Molar mass in $\mathrm{g} \mathrm{mol}{ }^{-1} \mathrm{C}: 12, \mathrm{H}: 1, \mathrm{O}: 16, \mathrm{~N}: 14$ )

Options:
A 55 g
B 15 g
C 30 g
D 45 g

The correct answer is:
45 g

Solution:
For isotonic solutions [osmotic pressure must be equal]
$\pi_1=\pi_2$
$\mathrm{C}_1 \mathrm{RT}=\mathrm{C}_2 \mathrm{RT}$
$\mathrm{C}_1=\mathrm{C}_2$
$\frac{\mathrm{m}}{180 \times 1}=\frac{15}{60 \times 1} \quad(\mathrm{~m}$ is the mass of glucose)
$m=\frac{180}{4}=45 \mathrm{~g}$

Topic: Chemistry, Solutions, NEET, NEET 2024 (Re-NEET)
Mass of living matter at a trophic level in an area at any time is called

Options:
A Detritus
B Humus
C Standing state
D Standing crop

The correct answer is:
Standing crop

Solution:
The amount of living matter present in an ecosystem in its different trophic levels is called standing crop. It is expressed in the form of number or biomass per unit area. Biomass is measured as either fresh weight or dry weight.
Dry weight is preferred over fresh weight as it is not liable to change with moisture content. Standing crop indicates the productivity and luxurience of growth.

Topic: Biology, Ecosystem, NEET, NEET 2011 (Screening)