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strojnjashka [21]
2 years ago
5

Write a paragraph as if you are a molecule of carbon dioxide in the blood that will be excreted through the lungs. Start in the

blood vessels of the lungs and finish as the breath is exhaled from the body. Be sure to include what structures are involved, what other substances are involved, the path taken out of the body, and the effect on the body.
Biology
1 answer:
schepotkina [342]2 years ago
6 0

Carbon dioxide (chemical formula CO2) is a colorless and odorless gas that is vital to life on Earth. This naturally occurring chemical compound is made up of a carbon atom contently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent (400 ppm) by volume.Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and also in seawater. It is present in deposits of petroleum and natural gas.

spent a few minutes on this

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What is the name of the thermodynamic barrier that must be overcome before products are formed in a spontaneous reaction?
ira [324]

The thermodynamic barrier that must be overcome before products are formed in spontaneous reaction is activation energy.

The activation energy is the maximum amount of extra energy that is required by a reacting molecules to get converted into product. It is the minimum energy that is required or needed to activate or energize molecules or atoms.

It is needed in the reaction so that reactants can move together and overcome forces of repulsion and start bond breaking.

Reactant is the substance that takes part in and that undergoes change during a reaction.

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3 0
1 year ago
think about a petal plucked from its flower. is the petal alive according to the characteristics of life? why or why not?
Anna [14]

Answer;

No, the petal is not alive according to the characteristics of life

Explanation;

-This is because the flower petal on it's own can not Grow, or Reproduce, Adapt to it's Environment, Use Energy, or Respond to it's Environment.

-Growth, reproduction, response, and respiration are some of the characteristics of living organisms, therefore for anything to be considered living it must possess these characteristics.

7 0
3 years ago
Read 2 more answers
Discussion
Viefleur [7K]

Answer:

The answer to these questions are the following:

1. sucrose solution (higher concentration of water molecules in the onion cells) >> red onion cells will shrink >> smaller diameter

2. distilled water (higher concentration of water molecules in the surrounding solution) >> red onion cells will become turgid >> higher diameter

Osmosis refers to the movement of a solvent (usually water molecules) across semipermeable biological membranes, which occurs from a region of higher concentration to a region of lower concentration. There are three classes of solutions that have different effects on cells due to the process of osmosis:

1. In a hypotonic solution, the cells will become turgid  

2. In an isotonic solution, the cells will become flaccid.  

3. In a hypertonic solution, the cells will shrink (plasmolysis)

When plant cells are placed into a hypertonic solution where there is a greater concentration of solute outside the cells (as in this case sucrose solution), water molecules will move from inside the cells to outside the cells, thereby cells will shrink due to water loss

When plant cells are placed into a hypotonic solution that is diluted in comparison to the content of the cell (as in this case plant cells placed in distilled water) water molecules will move from outside the cells to inside the cells, thereby cells will become turgid.

Learn more about this topic here:

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4 0
3 years ago
El esmog fotoquímico es causado por la acción sobre los productos químicos de
g100num [7]

Answer: El smog fotoquímico se forma cuando los fotones de la luz solar chocan con moléculas de diferentes tipos de agentes contaminantes en la atmósfera. Los fotones hacen que se produzcan reacciones químicas. Las moléculas de contaminación se convierten en otros productos químicos nocivos, como ya venimos en el laboratorio.

Explanation:

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Sickle cell anemia is a genetic disorder that can be diagnosed by observing a sample of blood. Which instrument would be utilize
Norma-Jean [14]
A microscope is the best tool
4 0
3 years ago
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