NEET QUIZ உயிர்மூலக்கூறுகள் புரதங்கள் மற்றும் என்சைம்கள் என்சைம்கள், DNA/RNA மற்றும் செல்

NEET Biology – B11-13

3 MCQ Tests × 15 Questions = 45 Questions

Submit Test செய்த பிறகு ஒவ்வொரு கேள்வியிலும் சரியான விடை காட்டப்படும்.

வழங்கப்பட்ட B11-13 Biology PDF-ஐ அடிப்படையாகக் கொண்டு கேள்விகள் உருவாக்கப்பட்டுள்ளன.

TEST 1 – உயிர்மூலக்கூறுகள்

1. Starch மற்றும் Cellulose ஆகியவை பல அலகுகளால் ஆன சேர்மங்கள் எவை?

A) எளிய சர்க்கரைகள் B) கொழுப்பு அமிலங்கள் C) கிளிசரால் D) அமினோ அமிலங்கள்

சரியான விடை: A) எளிய சர்க்கரைகள்

2. Apoenzyme என்றால் என்ன?

A) புரதம் B) அமினோ அமிலம் C) உலோக அயனிகள் D) கார்போஹைட்ரேட்டுகள்

சரியான விடை: A) புரதம்

3. Cellulose-ல் glucose units எந்த linkage மூலம் இணைக்கப்படுகின்றன?

A) Glycogen B) Cellulose C) Glycosidic D) Chitin

சரியான விடை: C) Glycosidic

4. பூச்சிகள் மற்றும் பிற arthropods-ன் exoskeleton-ஐ உருவாக்குவது எது?

A) Glycogen B) Cellulose C) Glycosidic D) Chitin

சரியான விடை: D) Chitin

5. Aldoses மற்றும் ketoses எவ்வாறு வகைப்படுத்தப்படுகின்றன?

A) Reducing sugars B) Benedict's test C) Blue D) Sucrose

சரியான விடை: A) Reducing sugars

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6. Reducing sugar இல்லையெனில் Benedict's solution எந்த நிறத்தில் இருக்கும்?

A) Reducing sugars B) Benedict's test C) Blue D) Sucrose

சரியான விடை: C) Blue

7. பின்வருவனவற்றில் reducing sugar அல்லாதது எது?

A) Glucose B) Fructose C) Sucrose D) Ketose

சரியான விடை: C) Sucrose

8. Lipids-ன் non-polar hydrocarbon chains காரணமாக அவை ______ தன்மை உடையவை.

A) Hydrophobic B) Triglycerides C) Fatty acids D) Single bonded

சரியான விடை: A) Hydrophobic

9. நீண்ட hydrocarbon chain மற்றும் carboxyl group கொண்டவை எவை?

A) Hydrophobic B) Triglycerides C) Fatty acids D) Single bonded

சரியான விடை: C) Fatty acids

10. Saturated fatty acids-ல் hydrocarbon chain எவ்வாறு இருக்கும்?

A) Single bonded B) Double bonded C) Triple bonded D) Ionic bonded

சரியான விடை: A) Single bonded

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11. Triglyceride-ல் fatty acids எத்தனை உள்ளன?

A) 1 B) 2 C) 3 D) 4

சரியான விடை: C) 3

12. Cell membrane-ன் முக்கிய structural component எது?

A) Glycolipids B) Phospholipids C) Proteolipids D) Triglycerides

சரியான விடை: B) Phospholipids

13. Animal cells-ல் cell membrane structure-ஐ வலுப்படுத்துவது எது?

A) Cholesterol B) Waxes C) Proteins D) Gerardus Johannes Mulder

சரியான விடை: A) Cholesterol

14. Proteins-ன் building blocks எவை?

A) Amino acids B) Amphoteric C) Dipolar ion D) Isoelectric point

சரியான விடை: A) Amino acids

15. Amino acid acid-ஆகவும் base-ஆகவும் செயல்படுவதால் அது ______ எனப்படுகிறது.

A) Amino acids B) Amphoteric C) Dipolar ion D) Isoelectric point

சரியான விடை: B) Amphoteric

Submit Test அழுத்தி முடிவைப் பார்க்கவும்.

TEST 2 – புரதங்கள் மற்றும் என்சைம்கள்

1. Zwitterion என்பது வேறு எந்த பெயரால் அழைக்கப்படுகிறது?

A) Amino acids B) Amphoteric C) Dipolar ion D) Isoelectric point

சரியான விடை: C) Dipolar ion

2. முழு molecule-ன் net charge zero ஆக இருக்கும் pH ______ எனப்படுகிறது.

A) Amino acids B) Amphoteric C) Dipolar ion D) Isoelectric point

சரியான விடை: D) Isoelectric point

3. ஒரு amino acid-ன் amino group மற்றொரு amino acid-ன் carboxyl group-உடன் வினைபுரிந்து உருவாகுவது எது?

A) Peptide bond B) Dipeptide C) Polypeptides D) Insulin protein

சரியான விடை: A) Peptide bond

4. இரண்டு amino acids நீர் இழப்புடன் சேரும்போது உருவாகுவது எது?

A) Peptide bond B) Dipeptide C) Polypeptides D) Insulin protein

சரியான விடை: B) Dipeptide

5. Peptide bonds மூலம் இணைக்கப்பட்ட நீண்ட amino acid சங்கிலிகள் ______ எனப்படும்.

A) Peptide bond B) Dipeptide C) Polypeptides D) Insulin protein

சரியான விடை: C) Polypeptides

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6. 1953-ல் Fred Sanger முதலில் sequence செய்தது எது?

A) Peptide bond B) Dipeptide C) Polypeptides D) Insulin protein

சரியான விடை: D) Insulin protein

7. Protein-ன் conformational change ஒரு குறிப்பிட்ட ______ வடிவத்தை அடைகிறது.

A) 3D B) Primary structure C) Secondary structure D) Tertiary protein structure

சரியான விடை: A) 3D

8. Amino acids-ன் line arrangement எது?

A) 3D B) Primary structure C) Secondary structure D) Tertiary protein structure

சரியான விடை: B) Primary structure

9. Amino acid chain coiled configuration-ஆக alpha-helix உருவாக்குவது எந்த structure?

A) 3D B) Primary structure C) Secondary structure D) Tertiary protein structure

சரியான விடை: C) Secondary structure

10. Secondary-level proteins globular domains-ஆக fold ஆகும்போது உருவாகுவது எது?

A) 3D B) Primary structure C) Secondary structure D) Tertiary protein structure

சரியான விடை: D) Tertiary protein structure

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11. சில complex proteins ஏற்றுக்கொள்ளக்கூடிய structure எது?

A) Quaternary protein structure B) Subunits C) Enzymes D) Antibodies

சரியான விடை: A) Quaternary protein structure

12. Protein-ன் individual polypeptide chains எவ்வாறு அழைக்கப்படுகின்றன?

A) Quaternary protein structure B) Subunits C) Enzymes D) Antibodies

சரியான விடை: B) Subunits

13. Cell-ல் chemical reactions-க்கு catalyst ஆக செயல்படுபவை எவை?

A) Quaternary protein structure B) Subunits C) Enzymes D) Antibodies

சரியான விடை: C) Enzymes

14. Loss of 3D structure of protein எவ்வாறு அழைக்கப்படுகிறது?

A) Denaturation B) Hydrogen bond C) Ionic bond D) Hydrophobic bond

சரியான விடை: A) Denaturation

15. Oxygen மற்றும் nitrogen-ல் உள்ள சில hydrogen atoms இடையே உருவாகும் bond எது?

A) Denaturation B) Hydrogen bond C) Ionic bond D) Hydrophobic bond

சரியான விடை: B) Hydrogen bond

Submit Test அழுத்தி முடிவைப் பார்க்கவும்.

TEST 3 – என்சைம்கள், DNA/RNA மற்றும் செல்

1. Minimum energy needed to reach the transition state என்ன அழைக்கப்படுகிறது?

A) Activation energy B) Inhibitors C) Competitive inhibitors D) Non-competitive inhibitors

சரியான விடை: A) Activation energy

2. Cells-ல் enzyme-உடன் வினைபுரிந்து reaction rate-ஐ குறைக்கக்கூடியவை எவை?

A) Activation energy B) Inhibitors C) Competitive inhibitors D) Non-competitive inhibitors

சரியான விடை: B) Inhibitors

3. Enzyme-ன் active site-ஐ occupy செய்ய போட்டியிடுபவை எவை?

A) Activation energy B) Inhibitors C) Competitive inhibitors D) Non-competitive inhibitors

சரியான விடை: C) Competitive inhibitors

4. பல enzymes-க்கு efficient activity-க்கு தேவைப்படும் non-protein components எவை?

A) Allosteric inhibitors B) Feedback allosteric inhibitor C) End-product inhibition D) Cofactors

சரியான விடை: D) Cofactors

5. Non-protein component உடன் கூடிய active enzyme எவ்வாறு அழைக்கப்படுகிறது?

A) Holoenzyme B) Apoenzyme C) Inorganic ions D) Coenzymes

சரியான விடை: A) Holoenzyme

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6. Non-protein component இல்லாத inactive enzyme எவ்வாறு அழைக்கப்படுகிறது?

A) Holoenzyme B) Apoenzyme C) Inorganic ions D) Coenzymes

சரியான விடை: B) Apoenzyme

7. Organic compounds acting as cofactors எவை?

A) Holoenzyme B) Apoenzyme C) Inorganic ions D) Coenzymes

சரியான விடை: D) Coenzymes

8. Purine அல்லது pyrimidine + ribose/deoxyribose sugar சேர்ந்து உருவாகுவது என்ன?

A) Nucleic acids B) Nucleotides C) Nucleoside D) Dinucleotide

சரியான விடை: C) Nucleoside

9. இரண்டு nucleotides இணைந்தால் உருவாகுவது எது?

A) Nucleic acids B) Nucleotides C) Nucleoside D) Dinucleotide

சரியான விடை: D) Dinucleotide

10. DNA-வின் 5' end-ல் இருப்பது எது?

A) Phosphate group B) OH group C) 20 Å D) Plectonemic coiling

சரியான விடை: A) Phosphate group

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11. DNA-வின் 3' end-ல் இருப்பது எது?

A) Phosphate group B) OH group C) 20 Å D) Plectonemic coiling

சரியான விடை: B) OH group

12. DNA helix-ன் diameter எவ்வளவு?

A) Phosphate group B) OH group C) 20 Å D) Plectonemic coiling

சரியான விடை: C) 20 Å

13. DNA-வின் இரண்டு strands ஒன்றை ஒன்று சுற்றிக்கொள்ளும் விதம் என்ன?

A) Phosphate group B) OH group C) 20 Å D) Plectonemic coiling

சரியான விடை: D) Plectonemic coiling

14. mRNA-வில் இருந்து code-ஐ translate செய்து amino acids-ஐ transfer செய்வது எது?

A) ribosomal RNA B) messenger RNA C) transfer RNA D) DNA

சரியான விடை: C) transfer RNA

15. Electron microscope-ஐ கண்டுபிடித்தவர்கள் யார்?

A) Janssen B) Edison C) Knoll and Ruska D) Landsteiner

சரியான விடை: C) Knoll and Ruska

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