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the plant cell when placed under hypertonic medium,it loses a great amount of water and its cell membrane detaches from the cell wall.in this situation the cell is called plasmolysed cell.when the plasmolysed cell is placed in hypertonic medium it absorbs water and becomes a turgid cell.this phenomenon is called deplasmolysis.</span>
cat eye syndrome is a genetic disorder that affect different parts of the body such as eyes, ears, kidney and heart. it is a disorder resulting from presence of extra small extra chromosome with genetic material from chromosome number 22. sign and symptoms are usually seen in the affected parts of the body. since it affects different parts of the body, treatment involves a group of doctors as well as other healthcare professionals. there are several medical interventions depending on the part of the body affected. they include surgery for heart defects and cleft lip and physical therapy for children with motor problems.
Answer:
- B the kinds of molecules involved in the reaction
- C the kinds of elements that make up a molecule
- D whether the molecules are products or reactants
Explanation:
When modelling the chemical reaction, it is important that the process is explained such that people looking at the model understand what happened in terms of the reactants and products and how they came to be either.
Leann will therefore have to include the kinds of molecules involved in the reaction be they products or reactants. She will also have to include which elements make up the molecules for instance a water molecule would have the elements Hydrogen and Oxygen.
Finally she would have to indicate which molecules are reactant and which are products. Reactants usually stay to the left side of the reaction equation and products stay to the right.
The answer to this question is:
<span>Sodium's atomic number is 11 what does that tell you about an atom of sodium?
</span><span>B-"it contains 11 protons"
Hoped This Helped,</span><span>Caitlyndecker
Your Welcome :)</span>
Answer: The tension is relieved by an enzyme named topoisomerase
Explanation:
As replication starts DNA polymerase needs to move forward of double strand DNA, this creates a lot of tension in the DNA molecule. The tension is relieved by the action of an enzyme named topoisomerase. The stress relieve is needed for the progresion of the replication mechanism.
There are to types of topoisomerases:
a) Topoisomerase I
b) Topoisomerase II
Topoisomerase I underwinds the DNA double helix by making a single cut in one of the strands of the DNA molecule. Once the cut is made, the DNA unwinds and torsional stress is released. Finally the DNA strand , that was cut is ligated ( see attached image)
Topoisomerase II acts when torsional stress is made because two DNA strands cross each other (superhelical stress). Topoisomerase II cuts both strands of a DNA molecule. After this cut is made the DNA unwinds and torsiona stress is relieved ). Finally both DNA strands are ligated ) see attached image)
Topoisomerases II enzymes require ATP hydrolysis to perform the cut of both of the DNA strands.
