STD 11 - 10. Cell cycle and cell division — BIOLOGY STD 11 Science — Question

$A$. An excessive loss of body fluid from the body switches off osmoreceptors.

$B$. $ADH$ facilitates water reabsorption to prevent diuresis.

$C$. ANF causes vasodilation.

$D$. $ADH$ causes increase in blood pressure.

$E$. $A D H$ is responsible for decrease in $GFR$.

Choose the correct answer from the options given below:

$II.$ The neural system provides an organized network of point to point connection for a quick coordination.

$III.$ The neural organization is very complex in lower invertebrates.

$IV.$ The human neural system includes $CNS$ and $PNS$

Select the correct statements.

$(I)$ In human body, it is made of number of muscle bundles.

$(II)$ Muscle bundles contains a number of muscle fibers and fiber is lined by the sarcollemma.

$(III)$ In Muscle fiber, sarcoplasm contains only one nucleus.

$(IV)$ In muscle fiber, sarcoplasmic reticulum is the store house of calcium ions.