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2 years ago

The atomic number of an element

1 answer:

6 0

According to the research, the correct answer is that the atomic number of an element is usually denoted by the letter Z and represents the stable compound particles of a positive elementary charge.

<h3>What is the atomic number ?</h3>

It is a total number of the smallest particles that make up the atom with a positive electric charge that is denoted with the letter "Z" that make up the atomic nucleus of a certain chemical element.

In this sense, each chemical element has a different atomic number, although its chemical way of behaving is established by the electrons that orbit around its nucleus.

Therefore, we can conclude that according to the research, the atomic number presents the different amounts of protons in the atoms of different elements.

Learn more about the atomic number here: brainly.com/question/8834373

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Phospholipids make up most of the lipid part of the cell membrane. Since water exists on both the outside and inside of a cell,

timurjin [86]

Answer:

Two back-to-back phospholipid layers with the polar heads facing out on both sides

Explanation:

Phospholipids are made up of a head and two tails. The head can be described as a phosphate molecule that is water loving (hydrophilic) whereas fatty acids make up the two tails. The fatty acids repel water and hence are hydrophobic. The assembling of the phospholipids for the the formation of cell membrane depends on these hydrophilic and hydrophobic properties. The assembling of the phospholipids is in two layers. The phosphate head face outwards on both sides to attract water and the tails tend to hide from the water molecules by being composed in the layers of the head. this assembling is termed as the "self-assembly".

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3 years ago

Salinity:

Maksim231197 [3]

D. All of the above.

Hope I helped.

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3 years ago

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How cells, tissues, organs, and organ systems<br> are related

Scorpion4ik [409]

Answer:

A group of cells make a tissue, a group of tissues make and organ, a group of organs make an organ system, and an organ system makes a organism.

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3 years ago

What is the relationship between the rate at which molten material cools and a minerals crystals

worty [1.4K]

The answer is; The slower the cooling the larger the crystals

Slow cooling allows the aqueous molecules of the compound to find a perfect geometry and grow into a large crystal. Fast cooling causes impurities to be incorporated into the growing lattice hence atagonizing the growing crystals.

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3 years ago

A student noticed that the freshwater plant, Elodea, produced bubbles when placed in direct light. What could the student most l

erastovalidia [21]

Explanation:

-The increased light intensity increased the rate of photosynthesis.

Photosynthesis produces glucose and O2 from inorganic CO2, light energy and water. Since photosynthesis is rate limited, the rate of energy intake can be increased in order to speed up photosynthesis, by speeding up photolysis.

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

These end products, namely O2 and glucose are then used in respiration...

C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

The CO2 and H2O produced as waste in respiration can then be incorporated at the beginning of photosynthesis. Thus the reactions are cyclic- they feed into each other.

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

Occuring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Respiration and photorespiration both utilize oxygen for;

the production of ATP via the oxidization of pyruvate;
and the oxygenation of the molecule Ribulose 1,5-bisphosphate (RuBP), an organic molecule also used in photosynthesis, to form 3-PGA + phosphoglycolic acid,

∴ the rate of CO2 usage for photosynthesis where O2 is produced, outpaces the rate of O2 use in respiration and photorespiration.