Portage Learning Set M1 All Answers Correct

Portage Learning Set M1 All Answers Correct What are three ways that biochemists study biological organisms? Ans- the relationship between structure and function of biomolecules, 2) chemical reactions of organisms (metabolism), and 3) communication within and among organisms What is the definition of biochemistry? Ans- The chemistry of life What is another name for firefly? Ans- Lightening bugs Is Li an element common in biological organisms? Ans- No What is known as the "medium of life"? Ans- Water What is the bond angle associated with trigonal pyramidal shape? Ans- 107.5 degrees Are transition metals commonly found in biological organisms? Ans- Yes True or false: Water can make up 85% (by mass) of a living organism. Ans- True True or false: Large elements tend to make the strongest covalent bonds. Ans- False Name three bulk elements. Name three trace elements. Ans- Bulk: Hydrogen, Sodium, Potassium Trace: Iron, Cobalt, Nickel Differentiate between inorganic chemistry and organic chemistry. Ans- Organic chemistry focuses on the properties of carbon compounds. Inorganic chemistry focuses on metals, minerals, and non organic compounds. Is H2O an organic molecule? How about CO2? C100H202? Ans- H2O is a inorganic compound CO2 is an organic compound C100H202 is an organic compound The next row of Table 1 would be the 6-carbon alkane, hexane. Write out its chemical formula and condensed formula. Ans- chemical formula: C6H14 Condensed formula: CH3CH2CH2CH2CH2CH3 On your own paper, draw the Kekule structures and line-bond formulas for both butane and hexane. When you have drawn the structures, enter a note in the answer box indicating you have done so (e.g., "I completed these drawings." Or "I drew the structures for butane and hexane.") Ans- ... How are the aldehyde and ketone functional groups similar? Different? Ans- Aldehdyes and ketones both have a carbon double bond oxygen arrangement (C=O) in their structure. They differ in that the other two bonds that the carbon forms are different. A ketone has both bonds connected to other carbons. An aldehyde has one bond to hydrogen and the second bond to either another hydrogen or carbon. What functional groups are found in glycine? Ans- Carboxylic acid and amine Retinal is found in the retina and helps with the absorption of light. What are two functional groups found in Retinal? Ans- alkene and aldehyde A cell wall is a combination of carbohydrates and proteins. What level of organization would this indicate and why? Ans- Supramolecular complex. A cell wall is a combination of two types of macromolecules to form a larger complex (through non-covalent interactions). What is the monomer of proteins, carbohydrates, and DNA? Ans- The protein monomer is an amino acid, a monosaccharide is the monomer for carbohydrates, and a nucleic acid is the monomer for DNA. How are prokaryotes and eukaryotes different? (State your answer in two or more complete sentences.) Ans- While they are both cells types, prokaryotes have a simple structure with no organelles present. Eukaryotes have a true nucleus and organelle structures. As a result, the eukaryotes are also considerably larger than prokaryotes