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2 years ago

. wil give brainlist!!Summarize the main contributions of Copernicus, Brahe, Kepler, Galileo, and Newton.

1 answer:

5 0

Copernicus is often described as a lone astronomer who defiantly argued that the sun, not the Earth was at the center of the cosmos. Copernicus' contributions to astronomy are so significant that they warrant their own term: The Copernican Revolution.

, Brahe put forward a new model for the cosmos. In Brahe's model, all of the planets orbited the sun, and the sun and the moon orbited the Earth. Keeping with his observations of the new star and the comet, his model allowed the path of the planet Mars to cross through the path of the sun.

Kepler worked for Tycho Brahe, publishing an extensive amount of Brahe's data in Rudolphine Tables. Although he used much of that data for his own publications Kepler's work would significantly depart from Brahe's.

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A synthetic 20 amino acid polypeptide named Betanova was designed as a small soluble molecule that would theoretically form stab

ra1l [238]

Answer:

The β-Turns in this sequence are two and include the Glycine (G), the two anterior amino acids, and the one posterior amino acid.

You will find the molecule image in the attached file.

Explanation:

β-Turns are structural elements that intervene in the orientation of the polypeptide backbone. These are short sequences of amino acids, with a characteristic conformation, that imposes a sharp 180º turn on the polypeptide chain. They are very abundant in globular proteins, such as Betanova, connecting the two adjacent antiparallel segments of the sheet.

They are mostly composed of four amino acids. In most cases, the third amino acid is usually Glycine, and in other cases, the second amino acid is Proline. In any case, the first residue of the sequence forms a hydrogen bridge with the last residue of the sequence, linking the amide-group of the last amino acid with the carbonyl-group of the first amino acid in the sequence.

According to the given sequence of the protein, we can find two specific regions in the molecule that contains glycine (G). Proline is not present in Betanova. Following the theory, in most turns, Gly seems to be the third amino acid of the short sequence. So, we can assume that the first two amino acids that are located before the G and the amino acid located after the G, are the ones that compose the β-Turns.

RGWSVQNGKYTNNGKTTEGR

The first turn (QNGK) turns the direction of the polypeptide 180º, going forward to the opposite side.
The second turn (NNGK) turns again the direction of the polypeptide, driving the last strain to the other side.

In the attached image, you will find the structure of Betanova showing strands (black arrows) and turns (red arrows).

4 0

2 years ago

Which phrase best defines erosion? A. layering bits of rocks and soil B. cementing layers of rock together to form stone C. brea

julsineya [31]

C is the answer. Particles erode from the main rock to form smaller rocks, and rock particles. It's the only answer that makes sense.

6 0

2 years ago

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After suffering an accidental brain injury, Kira has difficulty walking in a smooth, coordinated manner. It is likely that she h

klemol [59]

Answer: Kira has difficulty in walking in smooth coordinated manner because she has suffered injury to the cerebellum.

Explanation:

Cerebellum is a part of the brain situated inferior to cerbrum and posterior to pons. It receives sensory information and converts it into motor responses. Motor coordination is when subsequent parts of the same movement, or the movements of several limbs or body parts are combined in a manner that is well timed, smooth, and efficient. Cerebellum coordinates voluntary motor movements resulting in smooth coordinated muscular activities. Injury to cerebellum causes its loss of function which in return causes

1) loss of coordinated movements

2) inability to perform alternate rapid movements

3) movement tremors

4) staggering wide based gait

3 0

2 years ago

What is the reaction needed to remove a glucose molecule from a polysaccharide, 100 glucose molecues long

vaieri [72.5K]

The reaction needed to remove glucose molecule from a polysaccharide is hydrolysis.

Glucose is a type of monosaccharide which is used in the body for energy.

These monosaccharides such as:

Glucose,

Fructose and

Galactose;

can combine together to form a larger molecule of sugar known as polysaccharides in a reaction called condensation reaction.

Examples of polysaccharides are

Chitin

Cellulose

Start

Inulin

These polysaccharides can also be broken down to form the various monosaccharides that makes them up.

The hydrolysis of polysaccharides involves the breaking of the glycosidic bonds that hold the monomers of a polysaccharide molecule together.

This leads to the formation of monosaccharides such as glucose.

Learn more here:

brainly.com/question/13183834

4 0

1 year ago

Which characteristic is shared by the least number of organisms?

Viktor [21]

Answer:

Explanation:

8 0

2 years ago

Read 2 more answers