BIOCHEMISTRY
ENZYMES AND METABOLISM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
All parts of the body must have the same pH in order to survive
|
|
|
Many reactions can only happen at specific pH levels
|
|
|
pH affects osmosis
|
|
|
Control of active transport is achieved by pH
|
Detailed explanation-1: -Living organisms control pH within their tissues. What is a reason for regulating pH? A. All parts of a body must be kept at the same pH to survive.
Detailed explanation-2: -Regulation of body fluid pH is one of the most important physiological functions of homeostasis, because activity of most chemical reactions via enzyme proteins is dependent on fluid pH.
Detailed explanation-3: -By adjusting the speed and depth of breathing, the brain and lungs are able to regulate the blood pH minute by minute. Kidneys: The kidneys are also able to affect blood pH by excreting excess acids or bases in the urine. The kidneys make these adjustments more slowly than the lungs do, usually over several days.
Detailed explanation-4: -Importance of pH Balance Our bodies live and die at a cellular level and the cells must maintain alkalinity in order to function and stay alive. An acidic state causes lack of oxygen at a cellular level. A pH of below 7.4 is sub-optimal rpoviding the perfect environment for bacteria, mold and viruses to grow.
Detailed explanation-5: -The three essential mechanisms involved in regulating pH homeostasis include chemical buffer, the second line of defense in the respiratory system, and the urinary system. These three mechanism works together to keep the body pH with a narrow range.