The most important function of troponin is___________?

A. To bind with actin
B. To bind with tropomyosin.
C. To bind with Ca2+ ions.
D. All of these

Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.
A. Binding sites of actin get attached to the myosin head. B. Troponin uncovers the actin binding sites. C. Tropomyosin gets removed from the binding sites of actin filaments. D. Ca2+ goes back inside sarcoplasmic reticulum....
Protein factory is___________?
A. nucleus B. ribosome C. golgi complex D. centriole...
The major constituent of blood plasma is___________?
A. Protein B. NaCl C. Water D. Cholesterol...
In humans the number of tetrads formed during mitosis is___________?
A. 23 B. 46 C. 0 D. 4...
The one which is a weed killer is___________?
A. IAA B. NAA C. 2 4-D D. GA...
Unicellular fungi which is non-hyphal is___________?
A. Mushroom B. Yeast C. Penicillium D. Mold...
The only group of algae having no flagellated motile cells at any stage is___________?
A. Chrysophyta B. Phaeophyta C. Pyrrophyta D. Rhodophyta...
The system well developed in the acoelomate is___________?
A. Excretory system B. Nervous system C. Transport system D. All of these...
Types of behaviour enabling pillbugs to reach moist area is___________?
A. Kinesis B. Taxes C. Instinct D. Learning...
Number of spiracles present in cockroach is___________?
A. 15 B. 10 C. 20 D. 30...