________ is a cell's main source of energy.

Answers

Answer 1
Answer: ATP (Adenosine Triphosphate)

Answer 2
Answer:

Protein is a cell's main source of energy.


Related Questions

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Susan germinated a seed and watered the growing plant regularly. The plant produced flowers in the second year and died. Which type of plant could it be?
10) What gas is a product of photosynthesis?
Sustainability means developing practices which protect the environment while also providing for human needs. Which of the following changes would be most helpful in achieving sustainable agriculture? A)Clearing land for agriculture by cutting down trees instead of burning them B)Rotating crops to replenish the soil with nutrients C)Tilling the ground to remove weeds and create uniform crops D)Growing crops that produce only renewable resources
In mitosis or a single cell, the nucleus

Hair and nails are derived from cells of theA. skin.
B. bone.
C. blood.
D. fat tissue.

Answers

Answer:

The correct answer is option A. "skin".

Explanation:

Hair and nails are derived from cells of the skin. The cells of the skin have keratin, a protein that creates a protective barrier against the environmental factors that could affect them. The hair and nails are modifications of skin cells, that have keratin but with additional features. The hair is made of 95% keratin and is formed of three components: medulla, cuticle and cortex. The nail cells are made from keratin as well, forming a horn-like structure that is replaced by skin cells constantly.

The answer is A. Hair and nails are derived from cells of the skin.

How many amino acids are found in a living organisn

Answers

20 amino acids are found in a living organism.

Final answer:

Living organisms use 20 standard amino acids to make proteins, as coded by DNA. However, there are additional ones that are modified post-translation into proteins, raising the actual total number of amino acids found in a living organism.

Explanation:

In living organisms, there are 20 standard amino acids that are used to make proteins. These comprise the basic set of amino acids encoded by the genetic code. However, there are additional amino acids, not directly coded for in DNA, that are modified after being translated into proteins, like hydroxyproline and selenocysteine, making the actual total number of amino acids in a living organism somewhat higher than 20.

Learn more about amino acids here:

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if the united states continues using petroleum in vast amounts, it will become even more dependent on foreign sources for this resource. why?

Answers

Since we've been using petroleum in vast amounts organizations such as OPEC have appeared which restricts the U.S which ensued our country into suing; if this lawsuit passes then we will possibly be taking more petroleum than ever before due to it's demand such as it's needed for machinery and vehicles and etc. Most petroleum are from middle eastern countries, so our dependency will run rampant which will make us adhere to any of their policies pertaining to this fossil fuel in the near future.

The downfall of a tragic character is the result of __________.chance
a tragic flaw
the antagonist
poverty

Answers

The downfall of a tragic character is the result of "a tragic flaw".


The term hero is gotten from a Greek word that implies a man who faces affliction, or shows strength, despite risk. Nonetheless, at times he faces ruin too. At the point when a hero goes up against destruction, he is perceived as a tragic hero. Aristotle, the Greek philosopher, portrays these plays or stories, in which the principle character is a shocking saint, as disasters. Here, the hero goes up against his ruin whether because of destiny, or by his own oversight, or some other social reason.  

Hamartia refers to a tragic flaw that causes the downfall of a hero.

Answer:

Option B

Explanation:

In almost all the literature forms specially in greek literature, a hero has always been a person who has rises against all the odds in his/her life. This special character faces affliction and usually shows strength instead of the risk involved in it. Some time this character undergoes complete down fall or he/she get ruined but this "hero" rise up again and stand strongly  against the destruction and thus is perceived as a tragic hero. Aristotle, has always portrayed in his writing "hero" as the main character who get ruined because of destiny or some social reason

Hence, option B is correct

The powerhouse of the cell: that is a term used to describe the ______________, because it's main function is to produce energy for cellular activities.

Answers

The powerhouse of the cell: That is a term used to describe the MITOCHONDRIA, because its main function it to produce energy for cellular activities.

Mitochondria is the host of cellular respiration. This is where the Mitochondria take in glucose and oxygen to produce energy and is distributed all throughout the body as energy-rich molecules of ATP.

Corn oil has a density of 0.7 g/cm3. Water has a density of 1.0 g/cm3. A piece of plastic with a density of 0.9 g/cm3 will _____.sink in corn oil and in water

sink in corn oil and float to the top of water

float in corn oil and in water

sink in corn oil and float in the middle of water

Answers

Answer:

Corn oil has a density of 0.7 g/cm3. Water has a density of 1.0 g/cm3. A piece of plastic with a density of 0.9 g/cm3 will sink in corn oil and float to the top of the water.

Explanation:

Density is a unit that let us know the quantity of mass that a substance has per unit of volume. In a solution, the component with lower density will float, and be on the surface.

If we compare the densities of corn oil and a piece of plastic, the plastic will sink because its density ( 0.9 g/cm³ )is higher than the one of the corn oil (0.7 g/cm³).

In the case of the water, the plastic will float to the top because its density ( 0.9 g/cm³) is lower than the one of water (1.0 g/cm³).