Answer:
The correct option is option D which is 10 – 1 molecule of Oxaloacetate (OAA) is regenerated for every molecule of Acetyl-Coenzyme (AcCoA) used.
Explanation:
As the complete question is not given, the complete question is as below
Imagine that I start off with 10 molecules of oxaloacetate in a mitochondria. After running the TCA to generate 20 molecules of CO2, how many molecules of oxaloacetate will be left in the mitochondria (assuming oxaloacetate is being used only for TCA in these mitochondria)?
A) 30 – each molecule of CO2 generated corresponds to an increase of one OAA
B) 20 – every two molecules of CO2 generated corresponds to an increase of one OAA
C) 0 – two molecules of CO2 generated corresponds to one AcCoA used in the TCA; each AcCoA requires one molecule of OAA
D) 10 – one molecule of OAA is regenerated for every molecule of AcCoA used
Each cycle of TCA result in consumption of 1 Acetyl-Coenzyme (AcCoA) and 1 Oxaloacetate (OAA) molecule to give rise to 3 molecules of NADH and 2 molecules of CO2 per cycle. But at the end of each cycle, OAA molecule is regenerated. So the number of oxaloacetate(OAA) molecules remains unchanged.
Thus the correct option is option D which is 10 – 1 molecule of Oxaloacetate (OAA) is regenerated for every molecule of Acetyl-Coenzyme (AcCoA) used.
Answer:
1
Explanation:
Mostly because it was the BIGGEST thing that really happend during said event. The others happend yes but not as majorly as number 1.
The endocrine gland is the one that is ductless an release its secretion directly in bloodstream example liver, pancreas, etc. The given statement is true and the correct option is B.
<h3>What is endocrine gland's secretion called?</h3>
The secretion of endocrine gland is referred to as hormones, which are chemical messengers that helps in body's control and coordination.
The endocrine gland is the one that is ductless an release its secretion directly in bloodstream example liver, pancreas, etc.
Thus, the given statement is true and the correct option is B.
For more details regarding endocrine gland, visit:
brainly.com/question/11312688
#SPJ1
It is mostly glass and fiber glass