PORTAGE LEARNING CHEM 210 QUIZ 1

This study source was downloaded by from CourseH on :42:46 GMT -06:00 PORTAGE LEARNING CHEM 210 QUIZ 1This study source was downloaded by from CourseH on :42:46 GMT -06:00 PORTAGE LEARNING CHEM 210 QUIZ 1 PORTAGE LEARNING CHEM 210 QUIZ 1 Question 1 What are three ways that biochemists study biological organisms? 1) the relationship between structure and function of biomolecules 2) chemical reactions of organisms (metabolism) 3) communication within and among organisms. Question 2 What is the definition of biochemistry? Often referred to as the chemistry of life, biochemistry asks how the remarkable properties of organisms relate to their molecules. Question 3 What is another name for firefly? Lightening bugs Question 4 Is Li an element common in biological organisms? No Question 5 What is known as the “medium of life”? Water Question 6 What is the bond angle associated with trigonal pyramidal shape? 107.5 degrees Question 7 Are transition metals commonly found in biological organisms? Yes. Question 8 True or false: Water can make up 85% (by mass) of a living organism. True. Some plants are made up of 90% water by mass. Question 9 True or false: Large elements tend to make the strongest covalent bonds. False. Smaller elements tend to make the strongest bonds due to significant overlap.This study source was downloaded by from CourseH on :42:46 GMT -06:00 Question 10 Name three bulk elements. Name three traceelements. Bulk elements (three of these): H, C, N, O, Na, P, S,Cl, K, and Ca Trace elements: Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn,Se, Mo, I, and W. Question 11 Differentiate between inorganic chemistry andorganic chemistry. Organic chemistry is the study of carbonbased compounds. Inorganic chemistry is the study of allother elements. Question 12 Is H2O an organic molecule? How about CO2?C100H202? Water is not organic; it does not contain carbon.Both CO2and C100H202 are organic compounds. Question 13 The next row of Table 1 would be the 6- carbon alkane, hexane. Write out its chemical formula andcondensed formula. chemical formula: C6H14 Condensed formula: CH3CH2CH2CH2CH2CH3 Question 14 On your own paper, draw the Kekule structures andline-bond formulas for both butane and hexane. Question 15 How are the aldehyde and ketone functionalgroups similar? Different? Aldehdyes and ketones both have a carbon doublebond oxygen arrangement (C=O) in their structure.They differ in that the other two bonds that the carbon forms are different. A ketone has bothThis study source was downloaded by from CourseH on :42:46 GMT -06:00 bonds connected to other carbons. An aldehyde has one bond to hydrogen and the second bond to either another hydrogen or carbon. Question 16 What functional groups are found in glycine? Carboxylic acid and amine Question 17 What are the functional groups found in ATP? Alcohol, alkene, amine, and ether Question 18 A cell wall is a combination of carbohydrates and proteins. What level of organization would this indicate and why? Supramolecular complex. A cell wall is a combination of two types of macromolecules to form a larger complex (through non-covalent interactions). Question 19 What is the monomer of proteins, carbohydrates, and DNA? The protein monomer is an amino acid, a monosaccharide is the monomer for carbohydrates, and a nucleic acid is the monomer for DNA. Question 20 How are prokaryotes and eukaryotes different? Your Answer: 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. Question 21 How are Bacteria and Archaea different? Bacteria and Achaea are both simple cells with no organelle structure, and they lack a true nucleus. Archaea live in extreme conditions, such as hot springs and in the artic; they are thought to be more closely related to prokaryotes. Question 22 What is the function of mitochondria, lysosomes, and vacuoles? The mitochondria is the powerhouse of the cell responsible for producing ATP. It also contains metabolic processes that yield ATP in the end. Lysosomes degrade macromolecules–protein, lipid, carbohydrate, nucleic acids–into smaller pieces. These organelles have an acidic pH. Vacuoles have digestive enzymes to degrade proteins, carbohydrates, and nucleic acids, plus vacuoles function largely as storage centers. Question 23 What energy molecule is produced in the mitochondria? Adenosine triphosphate (ATP)