Table of Contents
- 1 What are two hydrogen-carrying molecules?
- 2 What is produced from the Krebs cycle?
- 3 Is nad a hydrogen carrying molecule?
- 4 Is Plastoquinone a hydrogen carrier?
- 5 What carries hydrogen in photosynthesis?
- 6 What type of molecule is plastoquinone?
- 7 Where does the Krebs cycle produce high energy molecules?
- 8 Where is NADH and flavin dinucleotide produced in the Krebs cycle?
What are two hydrogen-carrying molecules?
A hydrogen carrier is an organic macromolecule that transports atoms of hydrogen from one place to another inside a cell or from cell to cell for use in various metabolical processes. Examples include NADPH, NADH, and FADH.
What is produced from the Krebs cycle?
Overview of the Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and produces carbon dioxide, NADH, FADH2, and ATP or GTP.
What electron carrier molecules are made during the Krebs cycle?
The Krebs Cycle generates ATP and many energized electrons (in the form of FADH2 and NADH) for the electron transport chain. The mitochondrial electron transport cchain is similar to that used in chloroplasts for photosynthesis.
What is the symbol of hydrogen-carrying molecules produced during glycolysis?
Hydrogen-carrying molecules are also produced during glycolysis. What is the symbol of these molecules? NAD.
Is nad a hydrogen carrying molecule?
The electron transport system, whose function is to generate energy in the form of ATP during respiration, involves a series of hydrogen carriers, including NAD and FAD, which pass on the hydrogen (derived from the breakdown of glucose) to the next carrier in the chain. …
Is Plastoquinone a hydrogen carrier?
The function of the plastoquinone pool as a possible pump for vectorial hydrogen (H+ + e-) transport across the thylakoid membrane has been investigated in isolated spinach chloroplasts. Therefore, the plastoquinone pool might act as a pump for a vectorial hydrogen (H+ + e-) transport.
What hydrogen-carrying molecules are also produced in glycolysis How many?
Remember that glycolysis produces two pyruvic acid molecules per glucose molecule along with two of the hydrogen-carrying NADH molecules. Remember also that the Krebs cycle produces NADH as well as another hydrogen carrier called FADH2.
What energy carrying molecules are formed during glycolysis?
Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to produce more energy.
What carries hydrogen in photosynthesis?
In the first part of photosynthesis, the light-dependent reaction, pigment molecules absorb energy from sunlight. Energy travels through the electron transport chain, which pumps hydrogen ions into the thylakoid space. This forms an electrochemical gradient.
What type of molecule is plastoquinone?
isoprenoid quinone molecule
Plastoquinone (PQ) is an isoprenoid quinone molecule involved in the electron transport chain in the light-dependent reactions of photosynthesis. The most common form of plastoquinone, known as PQ-A or PQ-9, is a 2,3-dimethyl-1,4-benzoquinone molecule with a side chain of nine isoprenyl units.
Which element is constituent of plastoquinone and Plastocyanin?
The Copper Center Plastocyanin (PC) is a β-sheet protein (Figure 1) with a Cu atom that acts as the redox center. The Cu atom is coordinated to four amino acid residues (H87, H37, S84, and M92) in a distorted tetrahedral geometry.
How does the total number of hydrogen atoms change when glucose is converted to 2 molecules of pyruvic acid?
Remember that glycolysis produces two pyruvic acid molecules per glucose molecule along with two of the hydrogen-carrying NADH molecules. When each FADH2 gives up electrons and hydrogen ions, there is enough of a potential energy change to make two ATP molecules. 20.
Where does the Krebs cycle produce high energy molecules?
The Krebs cycle uses the two molecules of pyruvic acid formed in glycolysis and yields high-energy molecules of NADH and flavin adenine dinucleotide (FADH2), as well as some ATP. The Krebs cycle occurs in the mitochondrion of a cell (see Figure 6-1).
Where is NADH and flavin dinucleotide produced in the Krebs cycle?
The Krebs cycle uses the two molecules of pyruvic acid formed in glycolysis and yields high-energy molecules of NADH and flavin adenine dinucleotide (FADH 2 ), as well as some ATP. The Krebs cycle occurs in the mitochondrion of a cell (see Figure 6-1).
What happens to pyruvic acid during the Krebs cycle?
Prior to entering the Krebs cycle, the pyruvic acid molecules are altered. Each three-carbon pyruvic acid molecule undergoes conversion to a substance called acetyl-coenzyme A, or acetyl-CoA. During the process, the pyruvic acid molecule is broken down by an enzyme, one carbon atom is released in the form of carbon dioxide,…
How does acetyl CoA enter the Krebs cycle?
In the process, electrons and a hydrogen ion are transferred to NAD to form high-energy NADH. Acetyl-CoA enters the Krebs cycle by combining with a four-carbon acid called oxaloacetic acid. The combination forms the six-carbon acid called citric acid. Citric acid undergoes a series of enzyme-catalyzed conversions.