Answer: Prolactin
Explanation: During breastfeeding the anterior pituitary gland in the brain releases hormone prolactin as part of positive feedback mechanism. A mothers alveoli will collect nutrients from the blood and convert them into milk. Another hormone oxytocin, causes the muscles around the breast to eject milk (a let-down reflex) whilst a baby is sucking.
A sucking baby is actually a positive feedback that causes the brain to release more prolactin, which in turn causes the alveoli to convert more sugars and nutrients into milk.
Instead, it is started by enzymes, whichare protein molecules that speed up reactions. Specifically, salivaryamylase, the enzyme found in the saliva of humans. ... When combined with calcium, chloride, and water, theseamino acids form a specific amylasestructure called alpha amylase.
Answer:
plasmids (nonchromosomal DNA molecules) helps bacteria to exchange genetic material.
Answer:
Normally, the iron group in myoglobin has an oxidation state of 2+. However, when oxygen binds to the iron, it gets oxidized to an oxidation state of 3+. This allows the oxygen that is binded to have a negative charge, which stabilizes it. Myoglobin's affinity for oxygen is higher than hemoglobin.
Answer:
Hydrochloric acid Prepares protein for digestion (denaturation) Activates enzymes and “Disinfection”
Pepsin (an enzyme) Begins protein digestion
Gastric lipase Some lipid digestion
Gastrin (hormone) Stimulates gastric secretion and movement
Intrinsic factor (a glycoprotein) Needed for absorption of vitamin B12
Explanation: