Which of the following cell organelles is present in the highest number in secretory cells?

1. Mitochondria 2. Golgi complex
3. Endoplasmic reticulum 4. Lysosomes

Subtopic:  Eukaryotic Cell Orgenelle |
 51%
NEET - 2019
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Which amine reacts with Hinsberg's reagent to produce an alkali insoluble product?

1.    2.  
3.   4.  
 

Subtopic:  Identification of Primary, Secondary & Tertiary Amines |
 76%
From NCERT
NEET - 2019
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Which structure(s) of proteins remains(s) intact during denaturation process?

1. Both secondary and tertiary structures

2. Primary structure only

3. Secondary structure only

4. Tertiary structure only

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 81%
From NCERT
NEET - 2019
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The polymer that is used as a substitute for wool in making commercial fibres is -

1. Melamine

2. Nylon-6, 6

3. Polyacrylonitrile

4. Buna-N
 

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 65%
From NCERT
NEET - 2019
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The artificial sweetener stable at cooking temperature that does not provide calories is-

1. Saccharin

2. Aspartame

3. Sucralose

4. Alitame

Subtopic:  Food - Preservatives, Artificial Sweeteners & Antioxidants |
 58%
From NCERT
NEET - 2019
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The liquefied gas that is used in dry cleaning along with a suitable detergent is-

1. Water gas

2. Petroleum gas

3. NO2

4. CO2

Subtopic:  Wastes & Its Management |
From NCERT
NEET - 2019
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Non-membranous nucleoplasmic structures in the nucleus, are the sites for active synthesis of:

1. protein 2. mRNA
3. rRNA 4. tRNA
Subtopic:  Nucleus |
 62%
From NCERT
NEET - 2019
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Which of the following nucleic acids is present in an organism having 70 S ribosomes only?

1. Single-stranded DNA with a protein coat

2. Double-stranded circular naked DNA

3. Double-stranded DNA enclosed in nuclear membrane

4. Double-stranded circular DNA with histone proteins

Subtopic:  Details of Prokaryotic Cell Structure |
 69%
From NCERT
NEET - 2019
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After meiosis I, the resultant daughter cells have

1. same amount of DNA as in the parent cell in S
2. twice the amount of DNA in comparison to haploid
3. same amount of DNA in comparison to haploid gamete
4. four times the amount of DNA in comparison to haploid gamete

Subtopic:  Cell Cycle: Meiosis I |
From NCERT
NEET - 2019
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Which of the following organic compounds is the main constituent of Lecithin?

1. Arachidonic acid

2. Phospholipid

3. Cholesterol

4. Phosphoprotein

Subtopic:  Lipids | Introduction | Lipids: Glycerolipids, Phospholipids & Glycerol |
 85%
From NCERT
NEET - 2019
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