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liubo4ka [24]
2 years ago
7

"Explain how chemical energy for use in the cell is generated by electron transport and chemiosmosis"

Biology
1 answer:
Reika [66]2 years ago
7 0

Answer:

Explanation:

The electron-carrier proteins are arranged in the inner mitochondrial wall. A dehydrogenase enzyme (think of it as the first protein of the electron-transport chain) oxidises NADH2 (which is the reduced coenzyme NAD) and/or FADH2 (reduced coenzyme FAD). The energy from the oxidation process is used to pump hydrogen ions from the matrix to the inter-membrane space of the mitochondrion. Because of this, gradient of hydrogen ion concentration builds up across the inner mitochondrial membrane, which generates a potential difference across the membrane. The protons then flow back to the matrix through an enzyme called ATP synthase (also called ATPase). (This is called chemiosmosis because a chemical substance (H+) moves across a membrane, down the concentration gradient.) This releases energy needed for the ATP synthase to phosphorylate ADP, i.e. make ATP (chemical energy for use in the cell) from ADP and inorganic phosphate.

Note: Bolded things are important, everything else is just additional clarification in case you need it. This is the last major phase of cellular respiration. If you want a deeper insight into the process, I suggest you read a bit about glycolysis and Krebs cycle.

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A nursing instructor is teaching students about skin structure. The instructor evaluates student knowledge of the Langerhans cel
Alexxandr [17]

Answer:

Their answer about the location or function of the cells.

Explanation:

Since there are no options to select as the answer, i will just try my best to list a couple of them.

Langerhans Cells are from the family of cells named "Dendritic Cells" because of their tree like shapes. They can be found on parts of our body that come into contact with foreign environments or particles, such as skin, on the inside of our mouth, nose and stomach etc.

The nursing instructor could evaluate the students' knowledge by asking them where Langerhans Cells are located in our body, on which layer of our skin they can be found or what their primary functions are.

I hope this answer helps.

4 0
3 years ago
What is the correct order of genetic material from smallest to largest?
Ede4ka [16]

Answer: allele, gene, DNA, chromosome, nucleus

Explanation: An allele is a variant of a gene or a different form of a gene. A gene is a segment of a DNA that codes for an RNA or a protein. A DNA is a genetic material that contains all the genetic information of an organism. A DNA is packaged and condensed into a threadlike material known as chromosome and chromosomes are found in the nucleus of a cell.

5 0
3 years ago
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Which statement correctly describes a feature of carrying capacity? A. can only change if the population experiences migration B
svet-max [94.6K]

The answer is; E


With environmental changes, the carrying capacity can either increase or decrease. It is important to note that the carrying capacity is the number of individuals of a species that a habitat can sustain indefinitely.  With favorable environmental conditions, the carrying capacity increases while unfavorable environmental conditions decrease the carrying capacity.


6 0
3 years ago
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Specific regions of eukaryotic chromosomes contain sequence elements that are absolutely required for the proper transmission of
grandymaker [24]

Answer:

A. terminators of replication.

Explanation:

For the proper transmission of genetic information from a mother cell to each daughter cell, the cell copies or replicates its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set. And in order to duplicate and segregate correctly, chromosomes must contain three functional elements which are origins for initiation of DNA replication, the telomeres and the centromeres. Terminators of replication is not a required element.

3 0
3 years ago
The -- states that the cell is the basic unit of a living thing
Artemon [7]
<span>the cell is the basic unit of a living the</span> cellular level of an organism is where the metabolic processes occur and keep the organism alive that's why it is referred to the basic unit of a living thing
5 0
3 years ago
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