The resolving power of a compound light microscope will be greatest if the source of light is
blue
green
yellow
red
Which of the following hormone helps in secretion of HCl from stomach?
Renin
Gastrin
Secretin
Somatomedin
Liquid, which collects in Bowman's capsule is
water and sulphates
water and glycogen
plasma minus blood protein
concentrated urine
Which statement is incorrect for ion-channels?
They are proteins
Movement through them is simple diffusion
Movement through them is from high to low concentration
All ions pass through the same type of channel
D.
All ions pass through the same type of channel
Ion channels are protein channels. Substances can move by simple diffusion directly along these cannels from high concentration to low concentration. Many of the protein channels are highly selective for transport of one or more specific ion.
Quaternary structure of protein
consists of four subunits
may be either or
is unrelated to two functions of the protein
is dictated by the primary structures of the individual subunits
Primary and secondary active transport both
generate ATP
use ATP directly
can move solutes against their concentration gradient
include the passive movement of glucose molecule
Which type of membrane is most abundant within a cell?
ER membrane
Nuclear membrane
Golgi membrane
Plasma membrane
Part of the brain concerned with the muscular movement is
cerebellum
thalamus
Hippocampus
temporal lobe of cerebrum
In human, corpus callosum connects
the two optic lobes
bone and muscle
the two cerebral hemispheres
two lobes of pituitary gland