Answer:
Cold air is denser than warm air, it will sink below warmer air, pushing warm air upward.
Explanation:
Increase in carbon dioxide in your red blood cells which causes a drop in PH causes your breathing to speed up. If you hold your breath, rising carbon dioxide blood gas changes first leading to the urge to breathe. Carbon dioxide enters blood at the abdominal organs, hindlimbs, capillaries of the head.
Answer:
The proximal tubule of nephron in the kidney is composed of single layer of cuboidal cells that are covered with striated borders.
Explanation:
Proximal tubules or proximal convoluted tubule is an important part of vertebrate kidney which is located between bowman's capsule and loop of Henle.
Proximal tubules are divided into 2 parts- Proximal convoluted tubules and Proximal straight tubules.
Proximal convoluted tubules are located entirely to the renal cortex and the Proximal straight tubules descend into the outer medulla.
The major function of Proximal tubules are mainly absorption and secretion.
The proximal tubules helps to regulate the pH from the filtration and also causes sodium reabsorption that is driven by P type ATPase.70% re absorption of sodium takes place in the proximal tubules through active transport.
Moreover elimination of ammonia takes place through proximal tubules by breaking glutamine to alpha ketoglutarate.
