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NEET Preparation Practice MCQ for Students
Which cell organelle shows a typical internal pattern of “9 + 2” microtubule arrangement?
a) Cytoskeleton
b) Microfilaments
c) Cilia or flagella
d) Microtubules
Option c – Cilia or flagella
Which among the following is an enzyme that is not a protein?
a) Ligases
b) Trypsin
c) Pepsin
d) Ribozyme
Option d – Ribozyme
Where in the chloroplast is chlorophyll found?
a) Outer membrane
b) Inner membrane
c) Thylakoid membranes
d) Stroma
Option c – Thylakoid membranes
Intercalated discs are characteristic of which type of muscle?
a) Smooth muscles
b) Cardiac muscles
c) Skeletal muscles
d) Tendons
Option b – Cardiac muscles
What structures are created by stacked, flattened membrane-bound sacs inside the chloroplast?
a) Stroma
b) Grana
c) Stroma lamellae
d) Cristae
Option b – Grana
What term includes all the chemical reactions involving synthesis and breakdown of biomolecules?
a) Exergonic reactions
b) Thermophilic reactions
c) Metabolism
d) Exothermic reactions
Option c – Metabolism
Which type of chromosome has its centromere positioned near one end?
a) Acrocentric
b) Sub-metacentric
c) Metacentric
d) Telocentric
Option a – Acrocentric
Which of the following is correctly classified?
a) Cartilage – Loose connective tissue
b) Areolar tissue – Loose connective tissue
c) Adipose tissue – Dense connective tissue
d) Tendon – Specialized connective tissue
Option b – Areolar tissue – Loose connective tissue
Which metabolic process converts glucose into lactic acid?
a) Krebs cycle
b) Gluconeogenesis
c) Anabolic pathway
d) Glycolysis
Option d – Glycolysis
What enables the cockroach head to move in multiple directions?
a) Fusion of six segments in the head
b) Presence of appendages on the head
c) Compound eyes located on the head
d) Connection to the thorax by a movable neck-like prothorax
Option d – Connection to the thorax by a movable neck-like prothorax
What elements are always found in carbohydrates?
a) Carbon and hydrogen
b) Carbon, hydrogen, nitrogen, and oxygen
c) Carbon, hydrogen, and oxygen
d) Carbon and oxygen
Option c – Carbon, hydrogen, and oxygen
The rough endoplasmic reticulum is covered with
a) Peroxisomes
b) Centrioles
c) Lysosomes
d) Ribosomes
Option d – Ribosomes
What forms the chitin-based exoskeleton in arthropods?
a) Proteoglycans
b) N-acetylglucosamine
c) Lipoglycans
d) Keratin sulfate and chondroitin sulfate
Option b – N-acetylglucosamine
Which organelle is mainly responsible for holding hydrolytic enzymes?
a) Chloroplast
b) Chromoplast
c) Lysosome
d) Centriole
Option c – Lysosome
Which of the following is appropriately paired?
a) Nephron tubules – Cuboidal epithelium
b) Buccal cavity surface – Glandular epithelium
c) Bronchiole lining – Squamous epithelium
d) Salivary duct lining – Ciliated epithelium
Option a – Nephron tubules – Cuboidal epithelium
What type of bond joins monosaccharides in a polysaccharide?
a) Phosphoester bond
b) Hydrogen bond
c) Peptide bond
d) Glycosidic bond
Option d – Glycosidic bond
Which is true about the vacuole found in plant cells?
a) It has no membrane and holds air
b) It is enclosed by a membrane and contains water and waste materials
c) It is membrane-bound and stores proteins and lipids
d) It is non-membranous and filled with water and waste
Option b – It is enclosed by a membrane and contains water and waste materials
What is produced when one glycerol combines with three fatty acids?
a) Protein
b) Nucleic acid
c) Fat
d) Nucleotide
Option c – Fat
Identify the correct set of pyrimidine nitrogen bases.
a) Adenine and Guanine
b) Thymine and Cytosine
c) Adenine and Thymine
d) Guanine and Cytosine
Option b – Thymine and Cytosine
Which of the following breaks down to give two glucose molecules?
a) Maltose
b) Lactose
c) Sucrose
d) Galactose
Option a – Maltose
What is a major difference between plant and animal cells?
a) Animal cells do not have a cell wall
b) Plant cells lack a cell membrane
c) Animal cells have a rigid wall
d) Plant cells are without a cell wall
Option a – Animal cells do not have a cell wall
What is the R group in the amino acid serine?
a) Methyl group
b) Carboxyl group
c) Hydrogen atom
d) Hydroxymethyl group
Option d – Hydroxymethyl group
What cellular structure do plant cells have that animal cells lack?
a) Golgi apparatus
b) Centrosome
c) Plasma membrane
d) Plastids
Option d – Plastids
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