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50 POINTS YALL!! **PLEASE ANSWER BECAUSE I HAVE A F IN THE CLASS. NO ARTICLE:(. ALSO PLEASE ANSWER ALL IF YOU CAN!! 50 POINTS**

1. Describe the basic molecular structures and primary functions of the four major categories of biological macromolecules. In your explanation, include their molecular structures, their monomers (building blocks), and their basic function in living organisms.
2. Describe what happens when an enzyme is placed in environments that have different pH levels or temperatures than its regular environment.
3. he human body consists of approximately 60% water. Which property of water allows humans to maintain a stable body temperature?
4. Which property of water allows it to move up from the roots of plants to the its leaves for photosynthesis to occur.
5. Describe what cause water to have polarity and what makes it so “sticky”.
6. Explain why water is considered to be a “universal” solvent.
7. Explain why ice floats in a cup of water.

Respuesta :

jyangplboston

Answer:

See below

Explanation:

1. Nucleic acids: Contain phosphate, sugar group, and a base. Its the building block(monomer) of DNA and RNA.

 

Carbohydrates: Made out of Oxygen, carbon, and hydrogen. They mainly work as power source. Their monomers are glucose, frutcotse, and galactose.  

Lipid: Made of carbon, hydrogen, and oxygen. They are the fat(saturated and unsaturated fats). They are a chain of carbon with hydrogen bonding to the carbon.  

Protein: Contain oxygen, nitrogen, carbon, and hydrogen; sometimes contain sulfur. They have many uses in the body, their monoer is amino acid.

2. The enzyme might go through denaturation-they would lose their quaternary structure shape and stop functioning.

3. Water could absorb heat very well and let the heat out slowly when the outside temperature is lower than the body temperature, therefore can successfully maintain body temperature. This happens because breaking hydrogen bond between water takes heat.

4. Adhesion between water molecules and cellulose of the plant cell walls!(also you might want to add the cohesion aspect of water molecules sticking to molecules)

5. The negative charge of the Hydrogen half and the positive charge of the oxygen half; its polar status makes it possible to make hydrogen bond easily, therefore cohesion between water molecules can be formed easily.

6. Simple! Water can dissolve more chemicals than any other solvent.

7. When temperature decreases, the hydrogen bond strengths, therefore sticking the H2O molecules into a rigid shape with empty spaces between them. Therefore the density of ice is lower than liquid water-so it floats!

Hope this helps! Good luck to you in your biology course!

If you still have any question, feel free to leave them in the comments and I'll do my best to help.

Cheers!

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