Which one of the following plasma proteins is involved in the coagulation of blood?
Serum amylase
A globulin
Fibrinogen
Fibrinogen
C.
Fibrinogen
Fibringoen (factor 1) is a soluble plasma glycoprotein, synthesised by the liver. It is converted by thrombin inot fibrin during blood coagulation. Fibrin is the cross - linked by factor XIII to form a clot.
Important site for formation of glycoproteins and glycolipids is
Golgi apparatus
plastid
lysosome
lysosome
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?
63
84
21
21
Which of the following enzymes carries out initial step in the digestion of milk in humans?
Rennin
Lipase
Trypsin
Trypsin
Select the correct option with respect to mitosis
Chromatids start endoplasmic
Golgi complex and endoplasmic reticulum are still visible at the end of prophase
chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase
chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase
Organisms called Methanogens are most abundant in a
cattle yard
polluted stream
hot spring
hot spring
Which of the following are correct states as it happens in the common cockroach?
Oxygen is transported by haemoglobin in blood
Nitrogenous excretory products is urea
The food is ground by mandibles and gizzard
The food is ground by mandibles and gizzard
The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eyes is a derivative of
Vitamin -C
Vitamin -D
Vitamin - A
Vitamin - A
Continuous addition of sugars in 'fed-batch' fermentation is done to
obtain antibiotics
purify enzymes
degrade sewage
degrade sewage
Which one of the following correctly explains the function of a specific part of a human nephron?
Henle's loop - most reabsorption of the major substances from the glomerular filtrate
Distal convoluted - reabsorption of ion into the surrounding blood capillaries
Afferent arteriole - carries the blood away from the glomerulus towards renal vein
Afferent arteriole - carries the blood away from the glomerulus towards renal vein
