datavorous/entrance-exam-dataset huggingface dataset:
Read the statements given below. Identify which of them are true and which of them are false and select the correct option.

1. An IUD can be inserted by a lady herself into the uterus through her vagina.
2. IUDs increase phagocytosis of sperms in the fallopian tube.
3. Copper ions suppress sperm motility and fertilizing capacity.
4. Hormone releasing IUDs prevents ovulation.

Options:
A 1-True, 2-True, 3-False, 4-False
B 1-False, 2-False, 3-True, 4-True
C 1-True, 2-False, 3-True, 4-False
D 1-False, 2-True, 3-False, 4-True

The correct answer is:
1-False, 2-False, 3-True, 4-True

Solution:
An Intra Uterine Device cannot be inserted by a lady herself. It requires the help of a doctor or expert nurses to be inserted in the uterus through the vagina.
IUDs increase phagocytosis of sperms in the uterus.

Topic: Biology, Reproductive Health, NEET
Read the statements given below. Identify which of them are true and which of them are false. Select the correct option after referring to the table.

I. Malaria is caused by a protozoan known as Plasmodium.
II. Plasmodium vivax malaria is the most serious one and can be fatal.
III. Plasmodium enters the female body by the bite of the female Anopheles mosquito.
IV. The parasites initially attack the liver cells and then multiply in the WBCs causing their rupture.

Options:
A I-True, II-False, III-True, IV-False
B I-True, II-True, III-False, IV-False
C I-False, II-True, III-True, III-True
D I-False, II-False, III-False, IV-True

The correct answer is:
I-True, II-False, III-True, IV-False

Solution:
Malaria is a vector-borne disease caused by a protozoan Plasmodium. There are four species of Plasmodium. The malaria caused by Plasmodium falciparum is the most serious and can be fatal. Plasmodium enters the female body by the bite of female Anopheles mosquito. The parasites initially attack the liver cells and then multiply in the red blood cells causing their rupture.

Topic: Biology, Human Health and Diseases, NEET
Read the statements given below. Which of the following statements is/are incorrect?

I. Amniocentesis, a procedure which involves the analysis of yolk cells, has been banned by the government to prevent female foeticide.
II. The oral contraceptive pill 'Saheli' was developed by the Central Drug Research Institute (CDRI) situated in the city of Ludhiana.
III. Spermicidal creams, jellies, and foams are usually used with natural methods of contraception to increase their efficiency.
IV. Progesterone or progesterone-estrogen combination can also be used as implants under the skin for contraception purpose.

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

The correct answer is:
I, II and III

Solution:
I. Amniocentesis is a procedure which involves the analysis of amniotic fluid which surrounds the fetus. It is used for detection of genetic disorders like Down Syndrome.
II. The oral contraceptive pill 'Saheli' was developed by the Central Drug Research Institute (CDIR) situated in the city of Lucknow.
III. Spermicidal creams, jellies and foams are usually used along with barrier methods of contraception like condom, diaphragm etc. in order to increase their effectiveness.

Topic: Biology, Reproductive Health, NEET
Read the statements given below with regard to the functions performed by the Golgi apparatus.

I. Transport and chemically modify the material contained within it.
II. Secrete mucin in the respiratory tract.
III. Secrete slime in the insectivorous plants.

Which of the following is the CORRECT answer?

Options:
A I is wrong but II and III are correct
B II is wrong but I and III are correct
C II and III are wrong but I is correct
D I, II and III are correct

The correct answer is:
I, II and III are correct

Solution:
Golgi apparatus is a membrane-bound organelle of eukaryotic present in cytoplasm and composed of flattened, stacked pouches called cisternae. It is responsible for transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations. Many types of cells contain only one or several Golgi apparatus, plant cells can contain hundreds.

Topic: Biology, Cell - The Unit of Life, NEET
Read the statements regarding animal tissues and identify the one that is incorrect.

Options:
A Cuboidal epithelium is commonly found in ducts of glands and tubular parts of nephrons in kidneys.
B Compound epithelium covers the dry surface of the skin and has protective function
C Epithelial tissue is rich in intercellular matrix and is vascular
D Skin is connected to muscles by areolar connective tissue

The correct answer is:
Epithelial tissue is rich in intercellular matrix and is vascular

Solution:
Epithelial tissues are found to be lining different tissues and organs of the body. The cell arrangement in the epithelial tissue is very compactly found to be generally avascular. The intercellular matrix is next to nil and as a result, the tissue cells have one free surface for contact.

Topic: Biology, Structural Organisation in Animals, NEET
Read the statements regarding muscle proteins and find the correct options:
(i) Actin is a thin filament and is made up of two F-actins.
(ii) The complex protein, tropomyosin is distributed at regular intervals on the troponin.
(iii) Myosin is a thick filament which is also a polymerized protein.
(iv) The globular head of meromyosin consists of light meromyosin (LMM).

Options:
A (i), (ii) and (iii) are correct
B (i), (ii) and (iv) are correct
C (i), and (iii) are correct
D (ii) and (iv) are correct

The correct answer is:
(i), and (iii) are correct

Solution:
Tropomyosin is a double stranded Î± helical rod. It is fibrous molecule that attaches to F-actin in the groove between its filament. The globular head of meromyosin consists of heavy meromyosin (HMM).

Topic: Biology, Locomotion and Movement, NEET
Read the symptoms given below and identify the disease.

"Constipation, abdominal pain, cramps, stools with excess mucous and blood clots"

Options:
A Ascariasis
B Amoebic dysentery
C Chikungunya
D Filariasis

The correct answer is:
Amoebic dysentery

Solution:
The above symptoms are related to a condition known as Amoebic dysentery. This is caused by protozoan Entamoebahistolytica. This condition occurs due to consumption of untreated water or uncooked food. Bloody stools are the characteristic symptom of this condition. This is also known as intestinal amoebiasis as it causes encystation of the wall of the intestine. It is treated by metronidazole.

Topic: Biology, Human Health and Diseases, NEET
Read these statements about a taxonomic key. How many are false?

1. A taxonomic key is based on the contrasting characters generally in a pair called a couplet.

2. It is generally analytical.

3. It is a taxonomic aid used for identification of plants only.

4. Only accepted statement in the key is called a lead.

Options:
A Two
B One
C Three
D Four

The correct answer is:
Two

Solution:
A key in taxonomy facilitates the identification of unknown species of an organism based on contrasting characters. It provides a choice between two contradictory statements resulting in acceptance of one and the rejection of the other. A single pair of the contradictory statement is called a couplet and each statement of a couplet is termed a lead (each statement in the key is called a lead). This taxonomic aid is used for all the organisms.

Topic: Biology, The Living World, NEET
Reagent R will be:

Options:
A H2O
B CH3CH2OH
C HI
D CuCN/KCN

The correct answer is:
CH3CH2OH

Solution:
When benzene diazonium chloride reacts with ethanol, it forms benzene and acetaldehyde along with the removal of nitrogen gas and hydrogen chloride.

Topic: Chemistry, Hydrocarbons, NEET, NEET 2021
Reagent(s) used for the conversion of propanol into propane is

Options:
A I2/P
B (i) TsCl/Py (ii) LiAlH4
C Conc.H2SO4
D CH2N2/ether

The correct answer is:
(i) TsCl/Py (ii) LiAlH4

Solution:
TsCl/Py and LiAlH4 are used for the conversion of propanol into propane
CH3-CH2-CH2-OHâTsCl/PyCH3-CH2-CH2-O-TsâLiAlH4CH3-CH2-CH3

Topic: Chemistry, Hydrocarbons, NEET
Reagents which can be used to convert alcohols to carboxylic acids, are
(A) $\mathrm{CrO}_3-\mathrm{H}_2 \mathrm{SO}_4$
(B) $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7+\mathrm{H}_2 \mathrm{SO}_4$
(C) $\mathrm{KMnO}_4+\mathrm{KOH} / \mathrm{H}_3 \mathrm{O}^{+}$
(D) $\mathrm{Cu}, 573 \mathrm{~K}$
(E) $\mathrm{CrO}_3,\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O}$
Choose the most appropriate answer from the options given below.

Options:
A $(A),(B)$ and $(C)$ only
B $(A),(B)$ and $(E)$ only
C $(B),(C)$ and $(D)$ only
D $(B),(D)$ and $(E)$ only

The correct answer is:
$(A),(B)$ and $(C)$ only

Solution:
- $\mathrm{R}-\mathrm{CH}_2 \mathrm{OH} \frac{\text { 1. alkaline } \mathrm{KMnO}_4}{2 \cdot \mathrm{H}_3 \mathrm{O}^{+}} \longrightarrow \mathrm{R}-\mathrm{COOH}$
- $\mathrm{CH}_3\left(\mathrm{CH}_2\right)_8 \mathrm{CH}_2 \mathrm{OH} \frac{\mathrm{CrO}_3 \cdot \mathrm{H}_2 \mathrm{SO}_4}{\text { Jones reagent }} \rightarrow \mathrm{CH}_3\left(\mathrm{CH}_2\right)_8 \mathrm{COOH}$
- Alcohols can be easily oxidised by $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ and $\mathrm{CrO}_3$ in acidic medium.

Topic: Chemistry, Aldehydes and Ketones, NEET, NEET 2023 (Manipur)
Rearrange the following zones choose the correct option as seen in the root in vertical section and choose the correct option A. Root hair zone B. Zone of meristems C. Root cap zone D. Zone of Maturation E. Zone of elongation

Options:
A C, B, E, A, D
B A, B, C, D, E
C D, E, A, C, B
D E, D, C,B, A

The correct answer is:
C, B, E, A, D

Solution:
Root cap zone, Zone of meristems, Zone of elongation, Root hair zone, Zone of maturation are seen in the root in the vertical section.

Topic: Biology, Morphology of Flowering Plants, NEET
Reason of fast speciation in present-day crop plants is:

Options:
A mutation
B isolation
C polyploidy
D sexual reproduction

The correct answer is:
polyploidy

Solution:
Polyploidy causes fast speciation as it leads to complete reproductive isolation of an individual from other gene pools and it is found in nature due to the failure of chromosomes to separate at the time of anaphase.

Topic: Biology, Principles of Inheritance and Variation, NEET, NEET 2002
Reason of lanthanoid contraction is:

Options:
A Negligible screening effect of 'f' orbitals
B Increasing nuclear charge
C Decreasing nuclear charge
D Decreasing screening effect

The correct answer is:
Negligible screening effect of 'f' orbitals

Solution:
Lanthanoids are the f-block elements and 4f series element. The orbital size of the 4f is much bigger due to which electrons are spread in the large area, these electrons not able to shield charge from the nucleus. As a result, the poor screening effect or poor shielding effect of the 4f sub-shell. There is regular decrement of the atomic radius on increasing the atomic number.

Topic: Chemistry, d and f Block Elements, NEET, NEET 2014
Reason of lanthanoid contraction is

Options:
A Negligible screening effect of 'f' orbitals
B Decreasing screening effect
C Increasing nuclear charge
D Decreasing nuclear charge

The correct answer is:
Negligible screening effect of 'f' orbitals

Solution:
As inner d or f orbital electrons are located deep inside due to highly diffused shapes of these orbitals. So they exert low repulsion that is poor screening. It means due to poor shielding of f-orbitals nucleus will exert a stronger attraction causing lanthanoid contraction.

Topic: Chemistry, d and f Block Elements, NEET
Reasons for Mendel’s success was.
(i) His experiments had a large sampling size, thus greater credibility to the data collected.
(ii) Use of statistical analysis and mathematical logic
(iii) Considered many characters at a time.
(iv) Results are confirmed on the successive generation of test plants.

Options:
A i,ii,iii
B i,ii,iv
C i,iii,iv
D All of the above

The correct answer is:
i,ii,iv

Solution:
Mendel in his experiment studied the inheritance of a single character at a time. He investigated characters in garden pea plants that were manifested as two opposing traits, that allowed him to set up a basic framework of rules governing inheritance.

Topic: Biology, Principles of Inheritance and Variation, NEET
Recently Govt. of India has followed mixing of alcohol in petrol. What is the amount of alcohol permitted for mixing in petrol?

Options:
A $2.5 \%$
B $10-15 \%$
C $10 \%$
D $5 \%$.

The correct answer is:
$5 \%$.

Solution:
$5 \%$ of alcohol (ethanol) will be mixed in petrol for meeting energy needs.
Related Theory
Ethanol can be mixed with gasoline to form different blends. As the ethanol molecule contains oxygen, it allows the engine to more completely combust the fuel, resulting in fewer emissions and thereby reducing the occurrence of environmental pollution.
Caution
Currently, 8.5 per cent of ethanol is blended with petrol in India.

Topic: Biology, Environmental Issues, NEET, NEET 2004
Receptor sites for neurotransmitters are present on

Options:
A Membranes of synaptic vesicles
B Pre-synaptic membrane
C Tips of axons
D Post-synaptic membrane

The correct answer is:
Post-synaptic membrane

Solution:
The pre-synaptic membrane is involved in the release of neurotransmitter in the chemical synapse. The receptors sites for neurotransmitters are present on the post-synaptic membrane

Topic: Biology, Neural Control and Coordination, NEET, NEET 2017
Receptors associated with aortic arch and carotid artery can recognise changes in

Options:
A Only CO2 concentration in blood
B H+ and O2 concentration in blood
C CO2 and H+ concentration in blood
D O2 concentration in blood

The correct answer is:
CO2 and H+ concentration in blood

Solution:
Receptors associated with aortic arch and carotid artery also can recognise changes in CO2 and H+ concentration and send necessary signals to the rhythm centre for remedial actions. The role of oxygen in the regulation of respiratory rhythm is quite insignificant.

Topic: Biology, Breathing and Exchange of Gases, NEET
Receptors for sperm binding in mammals are present on:

Options:
A Corona radiata
B Vitelline membrane
C Perivitelline space
D Zona pellucida

The correct answer is:
Zona pellucida

Solution:
ZP3, one of three zona pellucida glycoproteins, serves as a structural glycoprotein, a sperm receptor, and an acrosome reaction-inducer.

The zona pellucida is a noncellular layer of carbohydrates and proteins located between the surface of the oocyte and the granulosa cell layer that secrete it.

The zona pellucida supports communication between oocytes and follicle cells during oogenesis; protects oocytes, eggs, and embryos during development, and regulates interactions between ovulated eggs and free-swimming sperm during and following fertilization.

Topic: Biology, Human Reproduction, NEET, NEET 2021
Recognise the correct name of the given figure.

Options:
A Stomata with dumbbell shaped guard cell
B Stomata with bean shaped guard cells
C Stomata with been dumbbell shaped guard cell
D None of the above

The correct answer is:
Stomata with bean shaped guard cells

Solution:
The figure represents Stomata with bean shaped guard cells.

Topic: Biology, Anatomy of Flowering Plants, NEET
Recognise the correct name of the given figure.

Options:
A Stomata with dumbbell shaped guard cell
B Stomata with bean shaped guard cells
C Stomata with been dumbbell shaped guard cell
D None of the above

The correct answer is:
Stomata with dumbbell shaped guard cell

Solution:
The figure represents Stomata with dumbbell shaped guard cell.

Topic: Biology, Anatomy of Flowering Plants, NEET
Recognise the figure and find out the CORRECT labeling

Options:
A a-linear curve in geometric growth, b-sigmoid or S-curve in arithmetic growth
B a-linear curve in arithmetic growth, b- sigmoid or S-curve in geometric growth
C a-sigmoid or S-curve in geometric growth, b- linear curve in arithmetic growth
D a-sigmoid or S-curve in arithmetic growth, b-linear curve in geometric growth

The correct answer is:
a-linear curve in arithmetic growth, b- sigmoid or S-curve in geometric growth

Solution:
In arithmetic growth, the number of population increases by a constant number in each period. Their number goes on the increase with time. There is lag, log, and the stationary phase is present in the curve. In this curve, only one daughter cell divides and other daughter cells differentiate and mature. These characters are responsible for the linear curve in arithmetic growth.
In geometric growth, the growth is directly proportional to the nutrient supply. If we supply more nutrients then growth will occur. The sigmoid growth curve is also known as the logistic growth curve and it is S shape. In lag phase growth is slow and in the log phase, the growth increases very rapidly and in the last phase it slows down when they reach carrying capacity.

Topic: Biology, Plant - Growth and Development, NEET
Recognise the figure and find out the CORRECT labeling.

Options:
A a and c-arithmetic, b and d-geometric
B a and c-geometric, b and d-arithmetic
C a and d-geometric, b and c-arithmetic
D a and d-arithmetic, b and c-geometric

The correct answer is:
a and d-arithmetic, b and c-geometric

Solution:
Growth rate is measured by increased growth per unit time. Growth in an organism or ots part can occur in many different ways. When a cell divides and forms two cells. Of that only one participates in the next division cycle comes under the arithmetic growth pattern. Root elongation at constant rate is a classic example of arithmetic growth.
In the geometric growth pattern, both the progenies of the divided cell participate in the next division cycle. Exponential growth phase is observed in this pattern. The graph in geometric growth is a typical sigmoid curve whereas in arithmetic growth the graph is a straight line.

Topic: Biology, Plant - Growth and Development, NEET
Recognise the figure and find out the CORRECT matching.

Options:
A a-fishes, b-amphibians, -repti1es, d-birds, c-mammals
B e-fishes, d-amphibians, b-reptiles, c-bird, a-mammals
C e-fishes, d-amphibians, c-reptiles, b-birds, a-mammals
D b-fishes, a-amphibians d-reptiles e-birds, C-mammals

The correct answer is:
e-fishes, d-amphibians, c-reptiles, b-birds, a-mammals

Solution:
The variety of flora and fauna in a particular habitat or the globe is called biodiversity. Basically, it is a way to measure the differences and variations among the organisms at genetic, species and ecological level. Biodiversity is higher at tropical region compared to the temperate and polar regions.
Vertebrates are further divided in to groups as fishes, amphibians, reptiles, birds and mammals. Fishes are the aquatic vertebrates found in marine as well as fresh water habitat. They are the most diverse group among vertebrates comprising nearly 50% of all vertebrates. Birds form the second highest diverse group in vertebrates. Reptiles rank third in terms of diversity. Amphibians come on the second last position and lastly, are the mammals in the extent of global diversity.

Topic: Biology, Biodiversity and its Conservation, NEET
Recognise the figure and find out the CORRECT matching:

Options:
A a-Haplontic life cycle, b-diplontic life cycle, c-haplodiplontic life cycle
B a-Haplodiplontic life cycle, b-diplontic life cycle, c-haplontic life cycle
C a-Diplontic life cycle, b-haplodiplontic life cycle, c-haplontic life cycle
D a-Haplontic life cycle, b-haplodiplontic life cycle, c-diplontic life cycle

The correct answer is:
a-Diplontic life cycle, b-haplodiplontic life cycle, c-haplontic life cycle

Solution:
The alternation of the two phases of life cycle between sexual phase and asexual phase is called alternation of generation. Such life cycle pattern is commonly observed in plants and algae. It is also called metagenesis and in it haploid gametophytic (generally sexual) generation alternates with diploid sporophytic (generally asexual) generation.
There are three variations in the life cycle. In diplontic life cycle, the sporophyte is diploid, dominant, autotrophic and independent. The gametophytic generation is haploid, recessive and dependent on sporophyte. The duration of sporophyte is longer than gametophyte generation. Observed in Angiosperms.
In haplontic life cycle, the gametophyte stage is dominant, green, haploid and independent while the sporophyte stage is diploid, recessive and partially dependent on gametophyte. Also, the gametophytic stage duration is longer than the sporophytic stage. Observed in algae.
In haplodiplontic life cycle, both the stages have nearly equal duration and none of them are dominant. Gametophyte is represented as independent, autotrophic and haploid. Whereas the sporophyte is independent, autotrophic and diploid. Pteridophytes show such life cycle.

Topic: Biology, Plant Kingdom, NEET
Recognise the figure and find out the CORRECT matching:

Options:
A a-archegonia, b-antheridia
B a-antheridia, b-archegonia
C a-antheridophore, b-archegoniophore
D a-archegoniophore, b-antheridiophore

The correct answer is:
a-archegoniophore, b-antheridiophore

Solution:
A Gemma cup is found in the upper surface of the bryophyte. It is a cup shape in which gemma is produced. They are small discs of haploid tissue that give rise to a new gametophyte. They disperse when raindrops fall into the cup. These gemma cups are present along the midrib. On the ventral surface, rhizoids are present along the midrib. In the first diagram, there is an Archegoniophore present whose stalk is of 2-5cm and on top of it there is a terminal disc that is present which is 8 lobed. On the dorsal surface, archegonia are borne in acropetal succession. In the second diagram, there is antheridiophore that is present whose stalk is of 1-3 cm that bears 8 lobed peltate discs.In this antheridia arises acropetally on each lobe. So the correct answer will be D.

Topic: Biology, Plant Kingdom, NEET
Recognise the figure and find out the CORRECT matching:

Options:
A a-Seta; b-Capsule; c-Gametophyte; d-Sporophyte.
B a-Capsule; b-Seta; c-Sporophyte; d-Gametophyte.
C a-Seta; b-Capsule; c-Sporophyte; d-Gametophyte.
D a-Capsule; b-Seta; c-Gametophyte; c-Sporophyte.

The correct answer is:
a-Seta; b-Capsule; c-Sporophyte; d-Gametophyte.

Solution:
Bryophytes are avascular plant evolved from thallophyte, In bryophyte (mosses) gametophyte is haploid, green, photosynthetic, independent, long living and they are divided into rhizoid, axis and phylloid whereas sporophytes is diploid, non-green, short lived and they are divided into foot, seta and capsule. Sporophyte is nutritionally dependent on gametophyte.

Topic: Biology, Plant Kingdom, NEET
Recognize the figure and find out the CORRECT match.

Options:
A a-Leaves, b-Stem, c-Rhizoid, d-Psilopsida
B a-Fronds, b-Stem, c-Rhizoid, d-Sphenopsid
C a-Leaves, b-Frond, c-Root, d-Pteropsida
D a-Leaves, b-Stem, c-Root, d-Lycopsida

The correct answer is:
a-Leaves, b-Stem, c-Root, d-Lycopsida

Solution:
This plant is also known as club moss and spike moss. The plant body is the sporophyte and it is differentiated into root, stem, and leaves. In this aerial roots are present that have developed caps. The stem is green, dorsiventral, and prostrate with short erect branches. The leaves of Selaginella are small and simple and they possess an unbranched midrib.

Topic: Biology, Plant Kingdom, NEET
Recognize the figure and find out the CORRECT matching.

Options:
A a-morula, b-blastocyst
B a-blastocyst, b-morula
C a-blastocyst, b-gastrula
D a-morula, b-gastrula

The correct answer is:
a-morula, b-blastocyst

Solution:
Fertilization results in the formation of a zygote that takes place in the oviduct. This zygote then undergoes a series of changes before it actually gets implanted in the uterus. Zygote first undergoes cleavage and results in the formation of 16 cells known as a morula. This is a solid ball and is represented by a. The morula then enters the uterus and undergoes changes. The 16 celled morula further forms 32 cells and these then start arranging in two layers: outer trophoblast and inner embryonal mass. This also forms a cavity and is known as blastocyst and the structure is known as blastula. This now gets implanted in the uterus. Thus figure b is blastocyst.

Topic: Biology, Human Reproduction, NEET