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xxMikexx [17]
3 years ago
10

How many chemicals are in tobacco smoke?

Biology
2 answers:
Vesnalui [34]3 years ago
8 0
Of the more than 7,000 chemicals in tobacco smoke, at least 250 are known to be harmful, including hydrogen cyanide, carbon monoxide, and ammonia (1, 2, 5). Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer.
tangare [24]3 years ago
3 0

Answer:

More than 7000 chemicals are present in tobacco smoke.

Explanation:

In these 7000 chemicals, 250 are harmful to the human body such as carbonmonoxide, ammonia and hydrogen cyanide etc. There are some chemicals that are found in tobacco smoke which causes cancer disease in human. About 69 chemicals out of 250 are present in tobacco smoke that causes cancer disease. So its consumption is dangerous for health.

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What does it mean when it says that aerobic respiration occurs in the cytoplasm “TO” the mitochondria???
Romashka-Z-Leto [24]

Answer:

Kerb cycle

<u>Explanation</u>:

The result from mitochondria is ATP, that acts as a currency of the energy in the cell. In the cytoplasm of mitochondria kerb cycle occurs. In this process it has several other process, once it uses acetate and water to give NADH from NAD+ and gives carbon dioxide as waste. The NADH formed is fed by oxidative phosphorylation or electron transport. The outcome of these processes is oxidation of nutrients to give chemical energy in ATP form.

4 0
2 years ago
Increases and decreases of the heart rate result from changes in the activity of the _______. A. medulla oblongata B. thalamus C
pantera1 [17]

Option A. Increases and decreases of the heart rate result from changes in the activity of the <u>medulla oblongata</u>

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What is medulla oblongata ?

  • Medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem.
  • The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.
  • The medulla oblongata plays a critical role in transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities, such as heartbeat and respiration
  • The medulla is divided into two main parts: the ventral medulla (the frontal portion) and the dorsal medulla (the rear portion; also known as the tegmentum).
  • The ventral medulla contains a pair of triangular structures called pyramids, within which lie the pyramidal tracts.
  • The pyramidal tracts are made up of the corticospinal tract (running from the cerebral cortex to the spinal cord) and the corticobulbar tract (running from the motor cortex of the frontal lobe to the cranial nerves in the brainstem)

To know more about medulla oblongata, refer:

https://brainly.in/question/123107

#SPJ4

7 0
2 years ago
2. What are three examples of carbohydrates?
o-na [289]
Like bread and chips
6 0
3 years ago
Read 2 more answers
Group the terms according to the subatomic particle they describe.
LiRa [457]

Answer:

This question is incomplete

Explanation:

This question is incomplete but the completed question can be seen in the document attached.

There are three main subatomic particles namely electrons, protons and neutrons. However, the question only discusses two of them; electrons (negatively charged) and protons (positively charged).

A. Found in all matter

Answer: They are <u>both</u> found in all matter since all matter are made up of atoms and all atoms have both protons and electrons (and even neutrons).

B. Negative charge

Answer: The subatomic particle with negative charge (as discovered by R.A Millikan) is the <u>electron</u>

C. Exists in the nucleus

The subatomic particles found in the nucleus are the <u>protons</u> and neutrons.

D. Attract opposite charges

They <u>both</u> (protons and electrons) attract opposite charges because they are of opposite charges and generally unlike charges attract.

E. Moves at extreme speed

Of the two subatomic particles mentioned, <u>electrons</u> move faster than protons because of there lighter mass when compared to the protons. However, the fastest subatomic particle is the neutrino.

F. Bound by strong force

The <u>protons</u> are bound by strong nuclear force which binds them to the nucleus of the atom.

Download docx
3 0
2 years ago
What type of molecule is estrogen made of​
Citrus2011 [14]
Hope this helps!

Estrogen is made out of steroid hormones

8 0
3 years ago
Read 2 more answers
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