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olchik [2.2K]
4 years ago
15

As the electron transport carriers shuttle electrons, they actively pump _____ into the outer membrane compartment, setting up a

concentration gradient called the proton motive force.
Chemistry
1 answer:
balu736 [363]4 years ago
8 0

Answer:

Hydrogen ions or protons

Explanation:

Electron transport carriers is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane. This creates an electrochemical proton gradient that drives the synthesis of ATP, a molecule that stores energy chemically in the form of highly strained bonds. The molecules of the chain include peptides, enzymes (which are proteins or protein complexes), and others. The final acceptor of electrons in the electron transport chain during aerobic respiration is molecular oxygen although a variety of acceptors other than oxygen such as sulfate exist in anaerobic respiration.

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Match the definition with the correct vocab word. - Numbers to Names
sergij07 [2.7K]

Answer:

1. Matter

2. Atom

3. Proton

4. Nucleus

5. Electron

6.Neutron

3 0
3 years ago
The processes of gluconeogenesis and glycolysis are said to be reciprocally regulated.Reciprocal regulation means thata) molecul
yawa3891 [41]

Answer:

Explanation:

Gluconeogenesis and glycolysis are coordinated so that within a cell one pathway is relatively inactive while the other is highly active. If both sets of reactions were highly active at the same time, the net result would be the hydrolysis of four nucleotide triphosphates (two ATP plus two GTP) per reaction cycle. Both glycolysis and gluconeogenesis are highly exergonic under cellular conditions, and so there is no thermodynamic barrier to such simultaneous activity. However, the amounts and activities of the distinctive enzymes of each pathway are controlled so that both pathways are not highly active at the same time. The rate of glycolysis is also determined by the concentration of glucose, and the rate of gluconeogenesis by the concentrations of lactate and other precursors of glucose.

The interconversion of fructose 6-phosphate and fructose 1,6-bisphosphate is stringently controlled (Figure 16.30). As discussed in Section 16.2.1, AMP stimulates phosphofructokinase, whereas ATP and citrate inhibit it. Fructose 1,6-bisphosphatase, on the other hand, is inhibited by AMP and activated by citrate. A high level of AMP indicates that the energy charge is low and signals the need for ATP generation. Conversely, high levels of ATP and citrate indicate that the energy charge is high and that biosynthetic intermediates are abundant. Under these conditions, glycolysis is nearly switched off and gluconeogenesis is promoted.

6 0
3 years ago
Which of the following statements are true? Heat is converted completely into work during isothermal expansion. Isothermal expan
icang [17]

Answer:

Heat is converted completely into work during isothermal expansion

Explanation:

first law:

  • ΔU = Q + W

∴ ΔU = CvΔT = 0....isothermal

⇒ Q = - W

5 0
4 years ago
What is the maximum number of electrons that an L shell may contain?
kirill [66]

Answer:

Eight

Explanation:

The L shell only holds eight electrons.

5 0
3 years ago
Read 2 more answers
How many grams of a 23.4% by mass naf solution is needed if you want to have 1.33 moles of naf?
jenyasd209 [6]
Percentage by mass is the mass of NaF present in 100 g of the solution.
the percentage by mass of NaF is 23.4 %
this means that in 100 g of solution, mass of NaF present is 23.4 g
the number of moles of NaF present - 1.33 mol
mass of NaF - 1.33 mol x 42 g/mol = 55.9 g
when there's 23.4 g of NaF - mass of solution is 100 g
therefore when there's 55.9 g of NaF - mass of solution is 100 / 23.4 x 55.9 
= 239 g
mass of solution required is 239 g
6 0
4 years ago
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