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RUDIKE [14]
3 years ago
13

14. Operons allow prokaryotes to

Biology
1 answer:
Vladimir79 [104]3 years ago
4 0
14: Operons allow prokaryotes to replicate DNA at the appropriate time.

Operons are specific regions of genes that are linked to a singular process. They ensure that the expression of these genes does not go unchecked and only occurs when necessary. Two key examples of this in humans are the lac operon and trp operon. 

15. The central dogma of molecular biology is:

DNA to RNA to Proteins

Protein Synthesis occurs in 3 steps. 

First our DNA is translated into RNA. Next the RNA is sequenced into Amino Acids by reading the corresponding 3-Base Codons. These Amino Acid sequences form various protein structures. 
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after light excites electrons and they leave Photosystem II to travel down the first electron transport chain. How are these ele
umka2103 [35]

Answer:

Through the photolysis of water molecules

Explanation:

<em>When the electrons in photosystem II gets excited, released and travel down to the electron transport chain, the electrons are replaced by the electron released by the cleavage/photolysis of water.</em>

<em>Water molecule is cleaved resulting in the formation of hydrogen ion, oxygen gas and electrons. The electrons then replace those lost by photosystem II.</em>

3 0
3 years ago
During science class, Mr. Webber read four scenarios to his class, which all describe an object in
wel

Answer:

I believe it would be C.

Explanation:

The change in the direction is the key factor to look at to find the answer

7 0
3 years ago
What model do scientist use to describe how electrons move around the nucleus?
kodGreya [7K]
Electron cloud modle should be the answer
3 0
3 years ago
What is the center of the atom called? <br> A Electron <br> B Neutron <br> C Nucleus <br> D Proton
sesenic [268]
Answer:
You’re answer is C

Explanation:
Atoms consist of three basic particles: protons, electrons, and neutrons. The center on the atom is called the Nucleus.
4 0
3 years ago
The type of bond that joins monosaccharides and is easily digested by enzymes in the human intestine is a __________. delta bond
timurjin [86]

Answer: alpha bond

Explanation:

The carbohydrates popularly called sugars are energy nutrients formed by carbon, hydrogen and oxygen atoms. It is the main energy source of the man and also has a structural or plastic role (formation of parts of cells such as the cell wall, or tissues, such as the exoskeleton chitin of the insects and crustaceans - crab). The small intestine's main mission is to complete the digestion of the chyme. In its passage through the duodenum, it suffers the action of pancreatic and intestinal juices and bile. In fact, it is in the duodenum that most digestive secretions are produced. The foods complexes are thus transformed into simple elements, easily assimilable by the body.

Enzymes are protein catalysts responsible for most of the chemical reactions of the organism, is found in all tissues. Amylase acts in the intestine hydrolyzing glucose polymers (starch, amylopectin, and glycogen). The bonds that hold the monosaccharides together and which are easily digested by pancreatic amylase in the intestine are known as alpha bonds. Some examples of sugars that have alpha bonds are sucrose, maltose, and starch.

6 0
3 years ago
Read 2 more answers
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