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NEET Biology Solved Question Paper 2006

Multiple Choice Questions

A prokaryotic cell lacks :

nucleus
nuclear membrane
membrane bound organelles
all of the above

Extranuclear inheritance is a consequence of the presence of genes in :

ER and mitochondria
lysosomes and ribosomes
ribosomes and chloroplast
mitochondria and chloroplasts

Vesicles of Smooth Endoplasmic Reticulum (SER) are most likely on their way to :

plastids
lysosomes
nucleolus
Golgi apparatus

Lysosomes are the store house of :

ATP
sugar
proteins
hydrolytic enzymes

Lipids are insoluble molecules are :

neutral
Zwitter ions
hydrophobic
hydrophilic

Which of the following is the simplest amino acid?

Glycine
Alanine
Tyrosine
Asparagine

Carbohydrates, ingested in the diet, are hydrolyzed by the enzyme :

pepsin
cellulose
$α$ - amylase
glycosidase

Stomach is the site of digestion mainly for :

fats
proteins
carbohydrates
all of these

9.
Which proteolytic enzyme induces lysis of fibrin during fibrinolysis ?

Fibrin

Thrombin

Plasmin

Platelet factor-VII

Plasmin

In fibrinolysis, a fibrin clot, the product of coagulation is broken down. Plasmin is a proteolytic enzyme in plasma which can digest many proteins through the process of hydrolysis. It cuts the fibrin mesh at various places, leading to production of circulating fragments which are cleared by other proteases or by the kidney and liver. It induces lysis of fibrin during fibrinolysis and is known as fibrinolysin