datavorous/entrance-exam-dataset huggingface dataset:
Which of the following are protozoans?

Options:
A Diatoms, chlamydomonas, Paramecium
B Desmids, chlamydomonas, paramecium
C Amoeba, dinoflagellates, paramecium, plasmodium
D Amoeba, paramecium, chlamydomonas, plasmodium

The correct answer is:
Amoeba, dinoflagellates, paramecium, plasmodium

Solution:
Protozoans are the primitive eukaryotes which are unicellular in nature. Amoeboid, flagellates, ciliates, sporozoans are the different classes under protozoans.

Topic: Biology, Biological Classification, NEET
Which of the following are required for the dark reaction of photosynthesis?
A. Light
B. Chlorophyll
C. $\mathrm{CO}_2$
D. ATP
E. NADPH
Choose the correct answer from the options given below:

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

The correct answer is:
C, D and E only

Solution:
For dark reaction of photosynthesis there are the requirement of $\left.\begin{array}{l}\mathrm{CO}_2 \\ \text { ATP } \\ \text { NADPH }\end{array}\right]$

Topic: Biology, Photosynthesis in Higher Plants, NEET, NEET 2024
Which of the following are required for the light reaction of Photosynthesis?
A. $\mathrm{CO}_2$
B. $\mathrm{O}_2$
C. $\mathrm{H}_2 \mathrm{O}$
D. Chlorophyll
E. Light
Choose the correct answer from the options given below:

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

The correct answer is:
C, D and E only

Solution:
For the process of light reaction, water, light and chlorophyll are required. $\mathrm{CO}_2$ is used during the second stage of photosynthesis i.e. dark reaction.
Oxygen is a product of light reaction formed by photolysis of water.

Topic: Biology, Photosynthesis in Higher Plants, NEET, NEET 2024 (Re-NEET)
Which of the following are strategies evolved to prevent self-pollination in flowers?

Options:
A Dichogamy
B Self-incompatibility
C None of the above
D Both A and B are correct

The correct answer is:
Both A and B are correct

Solution:
Dichogamy and Self-incompatibility are strategies evolved to prevent self-pollination in flowers

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Which of the following are suitable for the process?

Options:
A Light nuclei
B Heavy nuclei
C Element must be lying middle of the periodic table
D Middle elements which are lying on the binding energy curve

The correct answer is:
Light nuclei

Solution:
In nuclear fusion, lighter nuclei merge to form a heavier nuclear.

Topic: Physics, Nuclear Physics, NEET, NEET 2002
Which of the following are surface structures of a prokaryotic cell, but does not facilitate motility?

Options:
A Pili
B Flagella
C Fimbriae
D Both (A) and (C)

The correct answer is:
Both (A) and (C)

Solution:
Besides flagella, pili and fimbriae are also surface structures of the bacteria but do not play a role in motility. The pili are elongated tubular structures made of a special protein. The fimbriae are small bristle-like fibres sprouting out of the cell. In some bacteria, they attach the bacteria to rocks in streams and also to the host tissues.

Topic: Biology, Cell - The Unit of Life, NEET
Which of the following are the attributes that populations possess but not individuals?

Options:
A Natality or birth rate
B Mortality or death rate
C Age distribution
D all of the above

The correct answer is:
all of the above

Solution:
Natality or birth rates, mortality or death rate, age distribution, sex ratio, population density are the attributes that populations possess but not individuals.

Topic: Biology, Organisms and Populations, NEET
Which of the following are the characteristics of phaeophyceae?

(i) Possess chlorophyll a, c, carotenoids and xanthophylls.

(ii) Food stored is in the form of laminarin and mannitol.

(iii) Asexual reproduction by biflagellate zoospores that have two equal apically attached flagella.

(iv) Cell wall has cellulose and algin.

(v) Sexual reproduction is oogamous only.

(vi) Gametes have two laterally attached flagella.

Options:
A i, iii, iv, v
B ii, iii, v, vi
C i, ii, iv, vi
D i, ii, v

The correct answer is:
i, ii, iv, vi

Solution:
The members of phaeophyceae or brown algae are found primarily in marine habitats. They show great variation in size and form. They possess chlorophyll a, c, carotenoids and xanthophylls. They vary in colour from olive green to various shades of brown depending upon the amount of the xanthophyll pigment, fucoxanthin present in them. Food is stored as complex carbohydrates, which may be in the form of laminarin or mannitol. The vegetative cells have a cellulosic wall usually covered on the outside by a gelatinous coating of algin. Vegetative reproduction takes place by fragmentation. Asexual reproduction in most brown algae is by biflagellate zoospores that are pear-shaped and have two unequal laterally attached flagella. Sexual reproduction may be isogamous, anisogamous or oogamous. Union of gametes may take place in water or within the oogonium (oogamous species). The gametes are pyriform (pear-shaped) and bear two laterally attached flagella.

Topic: Biology, Plant Kingdom, NEET
Which of the following are the components of the formed elements in the blood?

Options:
A Erythrocytes
B Leucocytes
C Thrombocytes
D All of the above

The correct answer is:
All of the above

Solution:
Erythrocytes, Leucocytes, Thrombocytes are the components of the formed elements in the blood.

Topic: Biology, Body Fluids and Circulation, NEET
Which of the following are the correct axial distance and axial angles for rhombohedral system?

Options:
A a=b=c,α=β=γ≠90°
B a=b≠c,α=β=γ=90°
C a≠b≠c,α=β=γ=90°
D a≠b≠c,α≠β≠γ≠90°

The correct answer is:
a=b=c,α=β=γ≠90°

Solution:
For rhombohedral a=b=c, α=β=γ≠90°

Topic: Chemistry, Solid State, NEET
Which of the following are the examples of non-degradable pollutants?
I. DDT
II. Nuclear wastes
III. Plastic materials
Select the correct option

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

The correct answer is:
I, II and III

Solution:
The examples of non-degradable pollutants are DDT, nuclear wastes and plastic materials, as their degradation in environment is extremely slow.

Topic: Chemistry, Environmental Chemistry, NEET
Which of the following are the features of an ideal contraceptive?

(a) user-friendly
(b) reversible with no side effects
(c) interferes with sexual drive
(d) expensive to use
(e) easily available

Options:
A (a), (b), (e)
B (b), (c), (e)
C (a), (d), (e)
D (a), (c), (d)

The correct answer is:
(a), (b), (e)

Solution:
An ideal contraceptive should be user-friendly, easily available, effective and reversible with no or least side-effects. It also should in no way interfere with the sexual drive, desire and/or the sexual act of the user. A wide range of contraceptive methods are presently available which could be broadly grouped into the following categories, namely Natural/Traditional, Barrier, IUDs, Oral contraceptives, Injectables, Implants and Surgical methods.

Topic: Biology, Reproductive Health, NEET
Which of the following are the functions of RNA?

Options:
A It is a carrier of genetic information from DNA to ribosomes synthesising polypeptides.
B It carries amino acids to ribosomes.
C It is a constituent component of ribosomes.
D All of the above.

The correct answer is:
All of the above.

Solution:
RNA carries amino acids by tRNA, carries information of codons and is also a component of ribosomes.

Topic: Biology, Molecular Basis of Inheritance, NEET
Which of the following are the important floral rewards to the animal pollinators?

Options:
A Colour and large size of flower.
B Nectar and pollen grains.
C Floral fragrance and calcium crystals.
D Protein pellicle and stigmatic exudates.

The correct answer is:
Nectar and pollen grains.

Solution:
The important floral rewards to the animal pollinators are nectar and pollen grain. Plants attract pollinators to their flowers by advertising their floral rewards, i.e., nectar and pollen grain. They take the advantage of the fact that the animals can see, smell and taste by evolving different flower sizes, shapes, colors and scents to selectively attract pollinators.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET, NEET 2015 (Phase 1)
Which of the following are the important floral rewards to the animal pollinators?

Options:
A Colour and large size of flower
B Nectar and pollen grains
C Floral fragrance and calcium crystals
D Protein pellicle and stigmatic exudates

The correct answer is:
Nectar and pollen grains

Solution:
The important floral rewards to the animal pollinators are nectar and pollen grain. Plants attract pollinators to their flowers by advertising their floral rewards, i.e., nectar and pollen grain. They take the advantage of the fact that the animals can see, smell and taste by evolving different flower sizes, shapes, colors and scents to selectively attract pollinators.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Which of the following are the major components of seminal plasma?

Options:
A Calcium
B Fructose
C Enzymes
D All of the above

The correct answer is:
All of the above

Solution:
The major components of seminal plasma are calcium, fructose and enzymes.

Topic: Biology, Human Reproduction, NEET
Which of the following are the major transport mechanisms for CO2?

Options:
A Carbon dioxide as a simple solution
B Carbon dioxide as a bicarbonate ion
C Carbon dioxide as carbamino-haemoglobin
D all of the above

The correct answer is:
all of the above

Solution:
The major transport mechanisms for CO2 are Carbon dioxide as a simple solution, Carbon dioxide as a bicarbonate ion and Carbon dioxide as carbamino-haemoglobin

Topic: Biology, Breathing and Exchange of Gases, NEET
Which of the following are the members of Fabaceae?

Options:
A Sesbania, Trifolium
B Potato, Brinjal
C Allium cepa, Asparagus
D Tobacco, Petunia.

The correct answer is:
Sesbania, Trifolium

Solution:
Solanaceae Family - Potato, Brinjal, Tobacco, Petunia.
Liliaceae Family - Allium cepa, Asparagus

Topic: Biology, Morphology of Flowering Plants, NEET
Which of the following are the most suitable indicators of SO2 pollution in the environment?

Options:
A Conifers
B Algae
C Fungi
D Lichens

The correct answer is:
Lichens

Solution:
LICHENS: It is the symbiotic association (i.e., mutually useful association) of algae and fungi. The algal component of this association is called phycobiont (autotrophic) and fungal component is called mycobiont (heterotrophic). In this association, algae prepare food for fungi and fungi provides shelter and absorb mineral nutrients and water for its partner. Lichens are the indicator of air pollution, especially SO2 pollution i.e. they do not grow in polluted areas. Phycobionts of lichen are sensitive to SO2.

Topic: Biology, Environmental Issues, NEET, NEET 2015 (Phase 2)
Which of the following are the reasons for rheumatoid arthritis?

(i) Lymphocytes become more active.
(ii) The body attacks self cells.
(iii) More antibodies are produced in the body.
(iv) The ability to differentiate pathogens or foreign molecules from self cells is lost.

Options:
A i, iii and iv
B ii and iv
C ii, iii and iv
D i and iv

The correct answer is:
ii and iv

Solution:
Rheumtoid Arthritis is common condition that affects the joints. It is an autoimmune condition. This means the immune cells attack the healthy cells of the body. This results in inflammation of the bones. The exact cause of this is not known but the immune cells lose their ability to differentiate between foreign and body cells. It is detected by presence of antibodies called RA in blood.

Topic: Biology, Human Health and Diseases, NEET
Which of the following are the structural and functional units of liver?

Options:
A Hepatic peritoneum
B Hepatic lobules
C Ligamentum teres
D Falciform ligament

The correct answer is:
Hepatic lobules

Solution:
Hepatic lobules: These are the structural and functional units of the liver. These contain hepatic cells arranged in the form of cords. Each lobule is covered by Glisson's capsule (a thin connective tissue sheath). Hepatic cells secrete bile which passes through the hepatic ducts and reaches the gall bladder.

Topic: Biology, Digestion and Absorption, NEET
Which of the following are thermoplastic polymers?

Options:
A Polythene, urea-formaldehyde, polyvinyls
B Bakelite, polythene, polystyrene
C Polythene, polystyrene, polyvinyls
D Urea-formaldehyde, polystyrene, bakelite

The correct answer is:
Polythene, polystyrene, polyvinyls

Solution:
Bakelite and urea-formaldehyde are thermosetting polymers while polythene, polystyrene and polyvinyls are thermoplastics.

Topic: Chemistry, Polymers, NEET
Which of the following are true about the taxonomical aid 'key' ?
(a) Keys are based on the similarities and dissimilarities.
(b) Key is analytical in nature.
(c) Keys are based on the contrasting characters in pair called couplet.
(d) Same key can be used for all taxonomic categories.
(e) Each statement in the key is called Lead.
Choose the most appropriate answer from the options given below :

Options:
A (a), (b) and (c) only
B (b), (c) and (d) only
C (a), (b), (c) and (e) only
D (a), (c), (d) and (e) only

The correct answer is:
(a), (b), (c) and (e) only

Solution:
Taxonomic keys are specialised taxonomic aid which help in studying taxonomy and identifying organisms. Each category have different set of keys for its segregation. Each key count aim couplet and lead.

Topic: Biology, The Living World, NEET, NEET 2022 (Phase 2)
Which of the following are varieties of rice?

Options:
A Pusa Sadabahar and Jagannath
B Kalyan sona and Sonalika
C Himgiri and Parbhani Kranti
D Jaya and Ratna

The correct answer is:
Jaya and Ratna

Solution:
Semi-dwarf rice varieties were derived from IR-8, (developed at International Rice Research Institute (IRRI), Philippines) and Taichung Native-1 (from Taiwan). The derivatives were introduced in 1966. Later better-yielding semidwarf varieties Jaya and Ratna were developed in India.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Which of the following arrangements correctly represents hexagonal and cubic close packed structure respectively?

Options:
A ABABâ¦â¦and ACBACBâ¦â¦..
B ABCABCâ¦â¦.andÂ ABABâ¦â¦.
C Both have ABCABCâ¦â¦. arrangement
D Both have ABABâ¦â¦.. arrangement

The correct answer is:
ABABâ¦â¦and ACBACBâ¦â¦..

Solution:
In hexagonal close packed (hcp) structure, each sphere of third layer lies exactly above the sphere of first layer. Hence, hcp is abbreviated as ABABAB.........
In cubic close packed (ccp) structure, the spheres of third layer do not come over those of first, layer and sphere of fourth layer correspond with those in first layer. Hence, it can be shown as ABC ABC....... .

Topic: Chemistry, Solid State, NEET
Which of the following arrangements shows the schematic alignment of magnetic moments of ferromagnetic substance?

Options:
A
B
C
D

The correct answer is:

Solution:
In ferromagnetic substances, the magnetic dipoles are aligned in same orientation.

Topic: Chemistry, Solid State, NEET
Which of the following artificial techniques uses cryogenically preserved sperm?

Options:
A Artificial insemination
B GIFT
C Vasectomy
D Superovulation

The correct answer is:
Artificial insemination

Solution:
In artificial insemination, a doctor inserts sperm directly into a woman's cervix and uterus. The most common method is called "intrauterine insemination (IUI)," when a doctor places the sperm in the uterus.

Topic: Biology, Reproductive Health, NEET
Which of the following ARTs does not involve in-vitro fertilization?

Options:
A ZIFT
B ICSI
C GIFT
D IUT

The correct answer is:
GIFT

Solution:
Test tube baby programme involves: IVF-ET which means in fertilization occurs outside the female body (in-vitro )in the laboratory and the resultant embryo up to the 8-celled stage is transferred to the fallopian tube (ZIFT) or more than 8-celled stage is transferred to uterus (IUT) of the mother.
A functional ova/female gamete is collected and transfer to the fallopian tube of the mother for in-vivo fertilization followed by natural or artificial insemination.

Topic: Biology, Reproductive Health, NEET
Which of the following Ascomycete is used extensively in Biochemical and genetic work?

Options:
A Claviceps
B Cladophora
C Neurospora
D Budding yeast

The correct answer is:
Neurospora

Solution:
Neurospora is used extensively in biochemical and genetic work.

Topic: Biology, Biological Classification, NEET
Which of the following assisted reproductive technique is applicable in a woman who cannot ovulate regularly but can provide suitable environment for fertilization?

Options:
A ZIFT
B ICSI
C GIFT
D All of the above

The correct answer is:
GIFT

Solution:
Gamete intra fallopian transfer (GIFT) is an assisted reproductive technique is applicable in a woman who cannot ovulate regularly to produce ovum but can provide suitable environment for fertilization and further development.
ZIFT and ICSI both involve in vitro fertilization means outside the woman body.

Topic: Biology, Reproductive Health, NEET
Which of the following assisted reproductive technique is not included under the test-tube baby programme?

Options:
A GIFT
B ZIFT
C IUT
D IVF

The correct answer is:
GIFT

Solution:
The Test tube programme involves in-vitro fertilization followed by embryo transfer, commonly known as IVF-ET. The ovum is fertilized with sperm outside the female body in a petri dish or test tube in a lab.

Topic: Biology, Reproductive Health, NEET
Which of the following assisted reproductive technique is used to cure infertility due to very low sperm count in the ejaculates?

Options:
A AI (Artificial Insemination)
B ZIFT (Zygote intra fallopian transfer)
C IUI (Intra-uterine insemimation)
D Both a and c

The correct answer is:
Both a and c

Solution:
Infertility is either due to inability of the male partner to inseminate the female, or due to very low sperm counts in the ejaculates. This can be corrected by artificial insemination (AI) called intra-vaginal insemination or intra-uterine insemination (IUI).

Topic: Biology, Reproductive Health, NEET
Which of the following assisted reproductive techniques is used in the test-tube-baby programme?

Options:
A Zygote intra fallopian transfer (ZIFT)
B Gamete intra fallopian transfer GIFT
C Artificial Insemination AI
D Intra uterine insemination IUI

The correct answer is:
Zygote intra fallopian transfer (ZIFT)

Solution:
In test-tube-baby programme, ova from the wife/donor (female) and sperms from the husband/donor (male) are collected and are induced to form zygote following in-vitro fertilisation and embryo transfer technique called IVF-ET. The resultant zygote or early embryo, in upto 8-celled stage, is transferred to fallopian tube (ZIFT) of mother to complete its further development.

Topic: Biology, Reproductive Health, NEET
Which of the following associations fixes nitrogen through non-nodulation?

Options:
A Roots of leguminous plants associated with Rhizobium.
B Coralloid roots of cycas in association with Anabaena.
C Both a and b
D None

The correct answer is:
Coralloid roots of cycas in association with Anabaena.

Solution:
Cyanobacteria like Aanabaena is known to form a facultative symbiotic relationship with the coralloid roots of Cycas and helps with nitrogen fixation without forming nodules and in turn, provides food and a stable environment.

Topic: Biology, Mineral Nutrition, NEET
Which of the following atomic numbers are the atomic numbers of the inner transition elements: 29, 59, 74, 95, 102 and 104?

Options:
A 59, 95 and 102
B 29, 95 and 74
C 102,104 and 59
D 29, 59 and 102

The correct answer is:
59, 95 and 102

Solution:
Correct Option is : (A)
59, 95 and 102

Topic: Chemistry, d and f Block Elements, NEET
Which of the following atoms has the highest first ionization energy?

Options:
A K
B Sc
C Rb
D Na

The correct answer is:
Sc

Solution:
Na,K,Rb belongs to alkali metal and down the group ionization
energy decreaseas size of atom increases
Across the period,the ionization energy increases with decreasing size of atom alkali Metal being first member of each period has lowest energy.
Thus Sc Being small has highest ionization energy (Na= 496, k=419; Sc =631 KJmol-1)

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Which of the following attraction is strongest?

Options:
A
B
C
D

The correct answer is:

Solution:
Here is having the strongest interaction as it is ion dipole type interaction.
Strength of molecular forces
Ion-dipole > dipole-dipole > ion-induced dipole > dipole-induced dipole > London forces.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which of the following attribute inhibits uncontrolled growth and thus prevents a cell from turning cancerous?

Options:
A Metastasis
B Malignancy
C Contact inhibition
D Inhibition

The correct answer is:
Contact inhibition

Solution:
The property shown by normal cells by virtue of which contact with other cells inhibits their uncontrolled growth is known as contact inhibition. This property is lost by cancer cells. As a result, they continue to divide and give rise to masses of cells known as 'tumors'.

Topic: Biology, Human Health and Diseases, NEET
Which of the following bacteria is not a source of restriction endonuclease?

Options:
A Haemophilus influenzae
B Escherichia coli
C Entamoeba coli
D Bacillus amyloliquefaciens

The correct answer is:
Entamoeba coli

Solution:
Entamoeba coli does not produce any restriction endonuclease.

Topic: Biology, Biotechnology - Principles and Processes, NEET
Which of the following bacteria is not a source of restriction endonuclease?

Options:
A Haemophilus influenza
B Escherichia coli
C Agrobacterium tumefaciens
D Bacillus amyloliquefaciens

The correct answer is:
Agrobacterium tumefaciens

Solution:
First restriction endonuclease Hind II was obtained from Haemophilus influenza. Escherichia coli is a source of many restriction endonucleases like Eco RI, Eco R II. Restriction endonuclease Bam I is obtained from Bacillus amyloliquefaciens. Agrobacterium tumefaciens is the source for Ti-plasmid containing T-DNA which is involved in causing crown gall/tumor in plants.

Topic: Biology, Biotechnology - Principles and Processes, NEET
Which of the following bacteria reduces nitrate in soil into nitrogen?

Options:
A Nitrobacter
B Nitrococcus
C Thiobacillus
D Nitrosomonas

The correct answer is:
Thiobacillus

Solution:
Thiobacillus reduces nitrate in soil into nitrogen. The process is called denitrification. On the other hand, Nitrosomonas and Nitrococcus oxidise ammonia into nitrite. The bacterium, Nitrobacter oxidises nitrite to nitrate. These processes together are known as nitrification.

Topic: Biology, Mineral Nutrition, NEET, NEET 2019 (Odisha)
Which of the following bacterial disease is characterized by sustained high fever, weakness, abdominal pain, constipation, headache and loss of appetite?

Options:
A Acariasis
B Typhoid
C Pneumonia
D Tetanus

The correct answer is:
Typhoid

Solution:
Typhoid disease is caused by a pathogenic bacteria Salmonella typhi. Sustained high fever, weakness, stomach pain, constipation, headache, and loss of appetite are some of the important symptoms. Intestinal perforation and death may occur in severe cases.

Topic: Biology, Human Health and Diseases, NEET
Which of the following barrier methods are made of rubber?

Options:
A Cervical cap
B Multiload 375
C Progestasert
D Lippes loop

The correct answer is:
Cervical cap

Solution:
Diaphragms, cervical caps and vaults: These are made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus.

Topic: Biology, Reproductive Health, NEET
Which of the following barrier methods are reusable?

Options:
A Condoms
B LNG-20
C Cervical caps
D Lippes loop

The correct answer is:
Cervical caps

Solution:
Diaphragms, cervical caps and vaults are also barriers made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus. They prevent conception by blocking the entry of sperms through the cervix. They are reusable. Spermicidal creams, jellies and foams are usually used alongwith these barriers to increase their contraceptive efficiency.

Topic: Biology, Reproductive Health, NEET