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3 years ago

Explain the key concepts of the Atomic Theory and the potential uses.

Biology

1 answer:

crimeas [40]3 years ago

8 0

Answer:

See answer below.

Explanation:

Atomic theory, dating from the nineteenth century postulated by the scientist Dalton, states that nature is composed of discrete units: the atoms. There are precedents to this theory: Law of conservation of mass (Lavoisier), Law of Avogadro Law of defined proportions and Law of multiple proportions (Proust). In summary, atomic theory describes the composition of the atom by protons, neutrons and electrons. The combinations of these elements make up the building blocks and then the molecules. Other points of the theory stand out: atoms of the same element are equal to each other (in mass and physical-chemical properties), atoms of different elements differ in mass and other properties, the compounds are formed in a simple numerical relationship by the union of atoms of the corresponding elements. Regarding the uses of atomic theory, there are applications in the field of nuclear energy, petrochemicals, pharmaceutical industry, development of new materials.

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Describe the process of photosynthesis, including a brief description of the light reactions and the Calvin cycle. Be sure to in

Marysya12 [62]

Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

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3 years ago

The small organs of equilibrium in scyphozoan jellyfishes are called

borishaifa [10]

Answer;

Statocysts

Explanation;

-The small organs of equilibrium in scyphozoan jellyfishes are called statocysts, and these are borne in more complex sense organs called rhopalium.

The statocyst is a balance sensory receptor present in some aquatic invertebrates, including molluscs, bivalves, cnidarians,ctenophorans, echinoderms, cephalopods and crustaceans. These structures aid in orientation and balance during swimming in medusae and are located around the margin of the bell in Craspedacusta.

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3 years ago

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Interviewing friends and family about their jobs and careers is one way of conducting ______ research about your own career opti

vampirchik [111]

... is one way of conducting B - informal research about your own career options.

The reason why this is a way of doing an informal assessment of careerr options is because you get to know a basic outline and idea on what are the possible careers that you can expect but in no way does it make you have a good job.

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3 years ago

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Ivanshal [37]

Answer:

Hydrogen

Explanation:

Hydrogen is the non-mineral nutrient, that is essential for photosynthesis.

Carbon, Oxygen and Hydrogen are the non-mineral nutrients.

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List and describe three ways that bacteria can acquire new genetic material

OLga [1]

Answer:

The three most common ways that bacteria diversify their DNA are transformation, conjugation, and transduction. Genetic Material: the material in our cells that makes us who we are inside and out.

Deoxyribonucelic Acid (DNA): hereditary material found in the nucleus.

Ribonucleic Acid (RNA): genetic material that differs from DNA through its chemical bases.

DNA contains all the secrets that make you so awesome! So, it is super important that the cell keeps the DNA safe. DNA has so much information that it could stretch from the earth to the sun four times! No seriously, four times! I'm sure you're thinking, how does all that information get into something so small? Well, DNA is highly organized in order to keep all information safe, yet accessible to the cell. This is a great thing because you don't want to lose your awesomeness! DNA is comprised of four chemical bases also known as nucleotides: adenine (A), guanine (G), cytosine (C), and thymine (T). These bases pair with one another, A with T and C with G. Each base is attached to a sugar (ribose) and a phosphate molecule: hence the name deoxyribonucleic acid.

Now that we have the basic building blocks of DNA, let's get into the structure. DNA is double stranded, and each strand is held together by the pairing of the nucleotides. Remember what we mentioned above: A loves T and C loves G. These bases never cheat on one another; they only pair with the partner they love! The double stranded DNA is spirally coiled to form a helix. You will find many textbooks refer to DNA as a double helix. This double helix looks much like a ladder with the nucleotides representing the rungs on the ladder and the sugar and phosphate are the sides. The double helixes are then wrapped around proteins called histones and packaged into chromosomes.

The other type of genetic material called ribonucleic acid (RNA) is structurally similar to DNA, but there are a few differences--primarily in their chemical bases. Before we get more into the differences, let's examine the similarities. Both have a sugar, phosphate group, and four chemical bases. Unlike DNA which is double stranded, RNA is single stranded. The other major difference is the bases that are found in RNA. RNA contains adenine (A), guanine (G), cytosine (C), and uracil (U). So, in RNA the base thymine is replaced with uracil. In RNA the base pairs are A loves U and C loves G.

Explanation:

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3 years ago