Answer: a. the ph of the matrix increases
Explanation:
NADH and FADH2 molecules resulting from the Krebs cycle (by reducing respectively NAD + and Electron and proton carriers (e- and H +), are oxidized in the final reactions of cellular respiration, and the electrons and protons are captured by oxygen, the final acceptor. The flow of electrons along the respiratory chain causes the active transport of protons along the chain through the inner membrane of the mitochondria. Protons return to the mitochondrial matrix by diffusion - chemiosmosis - and at the same time, ADP undergoes oxidative phosphorylation forming ATP. Because of this movement of protons inside the matrix, the ph of the matrix increases.
The neurotransmitter that is responsible for the voluntary movement of muscles in the arm is ACETYLCHOLINE.
Acetylcholine is the neurotransmitter that act at neuromuscular junctions, that is, it is released by the nervous system to activate muscle movement. Muscular contraction is usually initiated by the release of acetylcholine by the nervous system.
<u>Stomach</u> is the part of the GI tract does not actively participate in the digestion of carbohydrates.
Carbohydrates are first mechanically and chemically broken down in the mouth. Mastication, another term for chewing, breaks down the meals high in carbohydrates into ever-tinier bits. Saliva that covers the food particles is produced by salivary glands in the mouth cavity. Salivary amylase is an enzyme found in saliva.
Dietary carbohydrates are converted to glucose, fructose, and/or galactose in the small intestine and then absorbed into the blood. The breakdown and absorption of dietary carbohydrates can be influenced by a variety of factors.
The given question is incomplete, find below the complete question,
Q. Which part of the GI tract does NOT actively digest carbohydrates?
a)small intestine
b)stomach
c)pancreas
To know more about the Carbohydrate Digestion, click on the below link,
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4. Gene frequencies will remain constant
Secondary succession takes place in a grasslands and primary succession takes place in rocky desert.
Secondary succession also progresses faster.
