The number of mitochondria per cell varies widely—for example, in humans, erythrocytes (red blood cells) do not contain any mitochondria, whereas liver cells and muscle cells may contain hundreds or even thousands. The only eukaryotic organism known to lack mitochondria is the oxymonad Monocercomonoides species.
Why do liver and muscle cells have more mitochondria?
Therefore, more mitochondria means more energy generation. Since liver cells are highly regenerative and muscle cells spend high energy in contraction and expansion, these cells require high energy.
Why do heart cells have more mitochondria than other cells?
Mitochondria supply the cell with ATP (Adenosine Triphosphate), which is the energy the cell needs. A heart cell is a type of muscle cell which needs plenty of energy to contract and keep functioning. This is why a heart cell needs more mitochondria than other cells- because they need more energy.
Which muscle tissue do have more mitochondria (skeletal or cardiac)?
Which muscle tissue do have more mitochondria (skeletal or cardiac)? It's commonly believed that it's muscle cells that have the largest amount of mitochondria, and for good reason. Muscle cells are continually used to move the body, so they have the most mitochondria because of the large energy requirement.
Which part of the cell has the largest amount of mitochondria?
It's commonly believed that it's muscle cells that have the largest amount of mitochondria, and for good reason. Muscle cells are continually used to move the body, so they have the most mitochondria because of the large energy requirement.
Do liver cells have a lot of mitochondria?
The liver is one of the richest organs in terms of number and density of mitochondria. Most chronic liver diseases are associated with the accumulation of damaged mitochondria.
Do muscle cells have more mitochondria?
It takes place in the mitochondria and consumes oxygen. Due to their relatively high energy demand, muscle cells require a particularly high number of mitochondria compared to other cell types.
Why do liver cells contain more mitochondria?
Cells, which require more energy, possess more mitochondria such as muscles, liver, brain cell. Mitochondria produces ATPs, so cells, which perform more metabolic functions and have a more energy requirement contain thousands of mitochondria in each cell. Liver cells contain 1000-2000 mitochondria in each cell.
Which cells contain more mitochondria?
A. Your heart muscle cells – with about 5,000 mitochondria per cell. These cells need more energy, so they contain more mitochondria than any other organ in the body!
How many mitochondria are in muscle cells?
The cell membrane of all the muscle cells of the bundle, the mitochondria and the nuclei are traced; the nuclei are filled in grey and the mitochondria are filled in black. There are 136 muscle cell profiles in the bundle at this level, 11 nuclei and 765 mitochondria.
What cells have few mitochondria?
A few types of cells, such as red blood cells, lack mitochondria entirely. As prokaryotic organisms, bacteria and archaea do not have mitochondria.
What do liver cells have a lot of?
Hepatocytes comprise the principle cell population in the liver. They contain a large number of mitochondria, the powerhouses of the cell – seen here in yellow – and rough endoplasmic reticulum, a structure involved in protein and lipid synthesis, shown in blue.
Which cells would contain the most mitochondria quizlet?
What type of cell is likely to have the most mitochondria? Cells that need to perform high amounts of work, such as muscle cells in the heart and legs, fat cells and liver cells.
How many mitochondria are in liver cells?
The liver is extremely rich in mitochondria due to its critical metabolic function in the body, with each hepatocyte containing 1000–2000 mitochondria9.
Why do liver cells have lots of ribosomes?
Liver cells contain more ribosomes than fat cells because the liver is an organ in which much protein synthesis occurs, and ribosomes are the cell...
Why do liver cells have a lot of smooth ER?
Large amounts of smooth ER are found in liver cells where one of its main functions is to detoxify products of natural metabolism and to endeavour to detoxify overloads of ethanol derived from excess alcoholic drinking and also barbiturates from drug overdose.
Why do sperm cells have lots of mitochondria?
The sperm cell needs a lot of energy to reach the egg cell and therefore contains many mitochondria. So, now we know that the correct answer choice is (A). Sperm cells contain many mitochondria to provide them with energy needed for movement.
Which cell has more mitochondria than liver?
Muscle cell has more mitochondria than liver cell because muscles needs more energy to function.
Which theory states that mitochondria are the ancestors of free living organisms?
According to the endosymbiotic theory mitochondria are the ancestors of free living organisms, single...
Which organ is the largest internal organ in the body?
Liver is the largest internal organ of the body. It has many functions including metabolism. Metabolism...
What is the smallest particle?
The smallest is a Subatomic Particle. An atom is made out of subatomic parti cles. The word SUBatomic...
Which cell has more mitochondria than liver?
Muscle cell has more mitochondria than liver cell because muscles needs more energy to function....
Why do liver cells have mitochondria?
Metabolism and some other function require energy. This energy is provided by the liver mitochondria because the mitochondria are the power house of energy. Liver cells have maximum number of mitochondria (1000-2000 per cell). The enzymes in the liver cell mitochondria help in detoxifying ammonia which is produce as wast product of metabolism. This is the reason that liver cells have high number of mitochondria.
Why is the mitochondria important?
Mitochondria can be seen as "cellular power plants" because of its main function is to generate the energy of oxidation of organic matter into ATP, aerobic respiration produces the energy of the main site.In the cytoplasm, mitochondria are often concentrated in the metabolism of active regions, because these areas need more ATP, such as muscle cells, there are many mitochondria in muscle fibers. In addition, sperm cell, flagella, cilia, and renal tubular cells, mitochondria are the base of the distribution of more places.
Why do plants need mitochondria?
Plants need a mitochondria in order to perform specific function such as giving off energy. This energy...
Which theory states that mitochondria are the ancestors of free living organisms?
According to the endosymbiotic theory mitochondria are the ancestors of free living organisms, single...
Does the liver produce ATP?
Yes, the liver is the site of many chemical reactions like the conversion of ammonia to urea, as well as being involved in releasing many hormones such as insulin, and glycagon. All this requires energy. Mitochondria, via cellular respiration create ATP from glucose and other substrates, which the liver can use as energy to produce its products, and to transport them from itself, into the blood and to other cells...
Which cell has more mitochondria than skin cells?
There are more mitochondria in muscle cells than there are in skin cells.
Where does cellular respiration occur?
Cellular respiration occurs in mitochondria. There are three stages to cellular respiration- Glycolysis, the Krebs cycle, and the electron transport chain (ETC). Each stage of cellular respiration utilizes a different part of the mitochondria. Cellular respiration is the process by which energy is made. During cellular respiration, oxygen gas and the sugar called glucose are transformed into carbon dioxide, water, and an energy source called adenosine triphosphate (ATP).
Why do muscles have more mitochondria?
Muscle cell contain more mitochondria because it need more energy.
Which cells have the least mitochondria?
If you're curious, the cells with the least amount of mitochondria are skin cells and erythrocytes (red blood cells) since skin is just a protective barrier and red blood cells don't need to exert any effort or energy to move. Sources: http://hyperphysics.phy-astr.gsu.edu/hbase/biology/mitochondria.html.
What is the difference between glycolytic fibers and oxidative fibers?
Additionally, though I don’t have the images here, capillary density between the two fiber types are dramatically different. Oxidative fibers are covered in a sinus network, whereas glycolytic fibers generally have fewer capillaries.
Where does cellular respiration occur?
When oxidative phosphorylation inside mitochondria occurs, about 28 more ATP are produced. Most of cellular respiration, including aerobic respiration, occurs within mitochondria. Cellular respiration can be broken down into 5 steps, and all of them - except for the first one - occur inside mitochondria. 1.
What is the powerhouse of a cell?
Therefore, more mitochondria means more energy generation. Since liver cells are highly regenerative and muscle cells spend high energy in contraction and expansion, these cells require high energy. Hence, presence of large number of mitocho ndria in liver cells and muscle cells is justified.
Why do mitochondria have the most mitochondria?
Muscle cells are continually used to move the body, so they have the most mitochondria because of the large energy requirement. If you want to be more specific, the muscle cells of a marathon runner have even more since the muscle cells involved in running need to be able to do a lot of aerobic respiration.
How big is a Xenopus oocyte?
A human oocyte is about 0.1 mm in diameter; a frog ( Xenopus laevis) oocyte is 1.2 mm in diameter — about 12 times larger, hence more mitochondria.
Why do heart cells have a high amount of mitochondria?
The heart muscle is truly amazing in that it is constantly contracting and relaxing, and never tires. Mitochondria are the means of providing energy for this constant activity, and a lot are needed for this. As the heart is constantly pumping blood around the body, it needs a rich supply of oxygen and glucose. There are more mitochondria found in heart cells because this means we are able to produce enough energy to keep it functioning efficiently. This is a trait we humans have evolved in order to increase our chances of survival.
Why are mitochondria found in heart cells?
There are more mitochondria found in heart cells because this means we are able to produce enough energy to keep it functioning efficiently. This is a trait we humans have evolved in order to increase our chances of survival. fara_akhtar. 04 March 2017.
Why do cells need ATP?
ATP provides energy for the cell to contract. The more energy any cell needs to generate the more mitochondria it has. they contract often due to the pumping action of the heart, when a muscle contracts ATP is required therefor many mitochondria are required for aerobic respiration to produce this ATP.
How does ATP synthesis occur in muscle cells?
ATP synthesis occurs in them by ADP and Pyruvate synthesizing to create ATP , which is energy. Muscle cells work hard to move and contract and this is why they require a lot of energy thus they contain more mitochondria to produce a high level of ATP. Muheilan.
What is the role of mitochondria in the heart?
03 March 2017. The heart is constantly working. Mitochondria provide energy to all the cells in the body. The cells in the heart are working all the time and working hard. As a result the cells need a lot of energy and therefore a lot of mitochondria to produce the energy.
Why do mitochondria produce energy?
Our heart muscles contain so much mitochondria because those muscles are very active in our body and require lots of energy to constantly pump blood through our circulatory system. Mitochondria produce energy in the form of ATP from glucose (sugar) in our cells.
Why is the heart muscle important?
The heart muscle is truly amazing in that it is constantly contracting and relaxing, and never tires. Mitochondria are the means of providing energy for this constant activity, and a lot are needed for this. As the heart is constantly pumping blood around the body, it needs a rich supply of oxygen and glucose.
