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Physio 221
Chapter 2
Question | Answer |
---|---|
Which of the following is not true of RNA | All of the above are true of RNA |
Which of the following is not true of both triglycerides and phospholipids | They both contain a hydrophobic and hydrophilic end |
The formation of sucrose involves the removal of a molecule of water. This is called | dehydration synthesis |
A structural lipid found in the cell membrane is a | Phospholipid & Steroid |
Prostaglandins and steroids share which of the follwoing characteristics | Both have a rind structure in their molecule |
DNA | is a double helix strand of nucleotides |
Which of the following is not one of the major groups of organic substances in the human body | salts |
All of the following substances are organci except | electrolytes |
A ___is a functional group that is temporarily unattached and is highly reactive because of unpaired elctrons | Free radical |
Amino acids frequently become joined by | peptide bonds |
Unsaturated fats | will kink or bend because of the double bonds between the carbon atoms |
The element that is present in all protein but not in carbohydrates is | nitrogen |
The amino group in an amino acid is | NH3+ |
Humans can synthesize 12 of 21 basic amino acids, the remaining 8 which must be included in the diet are called | essential amino acids |
Which level of protein structure refers to the number, kind, and sequence of amino acids | primary |
They types of lipids found that form hormones, such as cortisone, estrogen and testosterone are | steroids |
Which lipids acts as a "tissue hormone" | prostaglandin |
The type of lipoprotein associated with "bad" cholesterol and the production of atherosclerotic changes in blood vessles is | LDL |
Which lipid is part of vitamin D | Steroids |
What is the most important factor in determining the physical and chemcial properties of fatty acids | degree of saturation |
Peptide bonds join together molecules of | amino acids |
The term glycoprotein, a combination of two words, tells you that the compound is made of __ with __ bein the dominant component | carbohydrate and protein; protein |
The alpha helix is an example of which level of protein structure | secondary |
The roles played by proteins can be divided into which categories | structural and functional |
Which of the following is not true of carbohydrates | All of the above are true of carbohydrates |
When two molecules of glucose are joined, they form which disaccharide | Maltose |
If one side of a DNA molecule is CTAGGCTG, the other side would be | GATCCGAC |
Sometimes reffered to as animal starch ___ is the main polysaccharide in the body | glycogen |
The basic building blocks of fats are | fatty acids and glycerol |
Which energy releasing or energy transfering molecule does not contain a nucleotide | Creatine phosphate |