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zhenek [66]
3 years ago
7

Which statement best explains why the overall charge on an atom is zero? The positive charge of the neutrons in the nucleus equa

ls the negative charge in the electron cloud. The positive charge of the protons in the nucleus equals the negative charge in the electron cloud. The negative charge of the neutrons in the nucleus equals the positive charge in the electron cloud. The negative charge of the protons in the nucleus equals the positive charge in the electron clou
Biology
1 answer:
Burka [1]3 years ago
3 0

B) The positive charge of the protons in the nucleus equals the negative charge in the electron cloud.

(I just took the test and it was right). :)

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Which statement describe what happens with ATP during glycolysis
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The first stage of cellular respiration is glycolysis. It does not require oxygen. During glycolysis, one glucose molecule is split into two pyruvate molecules, using 2 ATP while producing 4 ATP and 2 NADH molecules.

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3 years ago
100 POINTS!!! WILL GIVE BRAINLIEST FOR CORRECT ANSWER!!!
cestrela7 [59]

Answer:

Firstly, when we exercise, or do some activity (in this case football), we use more energy than usual...

The reason some of her body systems work faster than normal, is to keep the body working and in the equilibrium, so that she won’t get tired too fast.

Related to circulation, her blood flow increases, since she needs more oxygen to reach the muscles faster, due to the exercise/activity (Lactic acid builds up, so more oxygen is required.)

Her breathing increases to take in more oxygen(O2), and give out more carbon dioxide(CO2).

Her body respires more(respiration), both aerobically(with oxygen), and anaerobically(without oxygen), lactic acid builds up due to anaerobic respiration.

(Here, energy is released from glucose to generate a substance called lactic acid. ... Therefore anaerobic respiration cannot be used for a prolonged period of time without having damaging effects on a cell.)

When she inhales (Oxygen), it goes to the lungs, to the alveoli ( Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in and keep your body going)

In the Alveoli, diffusion takes place, this is where oxygen is diffused into the blood, and carbon dioxide is diffused (taken into) into the lungs.

Then we exhale, which gives out the carbon dioxide(CO2), this happens really fast, we also breathe so fast, this process happens within seconds.

Red blood cells contain something called haemoglobin, this combines with oxygen To form oxyhaemoglobin, then when the red blood cell reaches the muscle, it gives the oxygen, converting oxyhaemoglobin back to  haemoglobin.

Heart: pumps blood faster (as I said before), to ensure oxygen gets distributed faster to where it’s needed

4 0
3 years ago
Provide brief overview of the nervous system and its role in the maintenance of homeostasis.
Alona [7]
Explanation:

The nervous system has two major anatomical subdivisions:

Central Nervous System: Composed of the brain (inside the skull) and the spinal cord (inside the spinal column).

The brain and spinal cord are responsible for processing and integrating the various sources of information to allow us to develop a response. Therefore, the main function of the somatic nervous system is to connect the Central Nervous System with the organs and skeletal muscle to carry out our daily functions.

Peripheral nervous system: it is everything that is outside the bone cavity and is formed by the nerves and nerve ganglia that extend outside the central nervous system.

The peripheral nervous system has a somatic component, which is associated with the voluntary control of body movements through the use of skeletal muscles. This means that it is responsible for all the functions that we are aware of, including the movement of our arms, legs, and other parts of our body.

On the other hand, the autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiological processes. These processes include heart rate, blood pressure, breathing, digestion, and sexual arousal. The autonomic nervous system contains three divisions: sympathetic, parasympathetic, and enteric.

Due to the above relationships and anatomical subdivisions we can say that the nervous system is responsible for regulating and maintaining homeostasis. In fact, through its receptors, neurotransmitters, nervous inputs, and outputs, the nervous system keeps us in touch with our environment, both external and internal.

We can conclude that the correct answer is:

Answer:

Overview of the nervous system:

The nervous system has two major anatomical subdivisions:

Central Nervous System: Composed of the brain (inside the skull) and the spinal cord (inside the spinal column).

The brain and spinal cord are responsible for processing and integrating the various sources of information to allow us to develop a response. Therefore, the main function of the somatic nervous system is to connect the Central Nervous System with the organs and skeletal muscle to carry out our daily functions.

Peripheral nervous system: it is everything that is outside the bone cavity and is formed by the nerves and nerve ganglia that extend outside the central nervous system.

The peripheral nervous system has a somatic component, which is associated with the voluntary control of body movements through the use of skeletal muscles. This means that it is responsible for all the functions that we are aware of, including the movement of our arms, legs, and other parts of our body.

On the other hand, the autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiological processes. These processes include heart rate, blood pressure, breathing, digestion, and sexual arousal. The autonomic nervous system contains three divisions: sympathetic, parasympathetic, and enteric.

Role in the maintenance of homeostasis:

Due to the above relationships and anatomical subdivisions we can say that the nervous system is responsible for regulating and maintaining homeostasis. In fact, through its receptors, neurotransmitters, nervous inputs, and outputs, the nervous system keeps us in touch with our environment, both external and internal.

6 0
1 year ago
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