Biology Forums - Study Force

Biology-Related Homework Help General Biology Topic started by: shannerellyce on Jan 13, 2012



Title: What building-block molecules does the body need to prevent anemia?
Post by: shannerellyce on Jan 13, 2012
Our teacher, on the first day through us right in... I bought a used book (BAD MOVE) and am having a hard time with this pop quiz he gave us. I was able to answer most, but am having an issue with these.
What building-block molecules does the body need to prevent anemia?
Aluminum
Iron
Selenium
Zinc
4. What would happen to temperature homeostasis in the human body if water had a low specific heat and low heat of vaporization?
5. What would result if the enzyme carbonic anhydrase or its substrate change shape? How would this affect the body?
6. Describe all the molecules and processes that constitute the Central Dogma of biology?


Title: What building-block molecules does the body need to prevent anemia?
Post by: how_mendel on Jan 13, 2012
Iron


Title: What building-block molecules does the body need to prevent anemia?
Post by: how_mendel on Jan 13, 2012
4. What would happen to temperature homeostasis in the human body if water had a low specific heat and low heat of vaporization?

If water had a low specific heat, we would boil over with the least activity. In other words, if water had a low specific heat, then the bodies of all animals and humans would change quickly as the temperature of the environment changed. This would be deadly. No part of your body could be unprotected from the environment. If it was unprotected, the blood would freeze, expand, and crack open the skin.


Title: What building-block molecules does the body need to prevent anemia?
Post by: how_mendel on Jan 13, 2012
5. What would result if the enzyme carbonic anhydrase or its substrate change shape? How would this affect the body?

Carbonic anhydrase is an enzyme that assists rapid inter-conversion of carbon dioxide and water into carbonic acid, protons and bicarbonate ions. As a result, with any mutation, it wouldn't be able to efficiently transfer CO2 out of our blood, causing our blood to become highly acidic, leading to death.


Title: What building-block molecules does the body need to prevent anemia?
Post by: how_mendel on Jan 13, 2012
6. Describe all the molecules and processes that constitute the Central Dogma of biology?

Nucleotides are the main macromolecules involved in transcription and translation. Another are amino acids, that come together to form protein.

Central Dogma of Biology: DNA --> RNA  -->  Protein

** DNA is made up of sugar (deoxyribose), phosphate, and four nucleotides.

DNA is the carrier of genetic information in organisms.  What does that mean?   Large molecules in organism can have many functions: they can provide structure,   act as catalyst for chemical reactions,  serve to sense changes in their environment (leading to immune responses to foreign invaders and to neural responses to stimuli such as light, heat, sound, touch, etc) and provide motility.  DNA really does none of these things.  Rather you can view it as an information storage system.   The information must be decode to allow the construction of other large molecules.   The other molecules are usually proteins, another class of large polymers in the body.  Chromosomes are located in the nucleus of a cell.


Title: What building-block molecules does the body need to prevent anemia?
Post by: shannerellyce on Jan 13, 2012
Thank you very much, I was wrong on answer 5. Thank you!!