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Johana Resendiz
Phys Midterm
| A saturated fatty acid is one in which | oneone or more double bonds in its hydrocarbon chain are saturated with hydrogen atoms. or more double bonds in its hydrocarbon chain are saturated with hydrogen atoms. |
| A triglyceride is composed of a glycerol molecule and three of the same type of fatty acid. | False |
| RNA and DNA have the same pyrimidine bases but different purine bases. | False |
| A very large molecule composed of subunits of sugar, a nitrogen base, and a phosphate bond is a | nucleic acid. |
| Which of these is not a lipid? | polysaccharide |
| Unsaturated fats: | will kink or bend because of the double bonds between the carbon atoms. |
| 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. |
| The amino group in an amino acid is: | NH3+. |
| Which energy-releasing or energy-transferring molecule does not contain a nucleotide? | Creatine phosphate |
| A structural lipid found in the cell membrane is a: | steroid, and triglyceride. |
| If one side of a DNA molecule is CTAGGCTG, the other side would be: | GATCCGAC. |
| Why is cartilage slow to heal? | because it is semi-solid and flexible, and because it does not have a blood supply |
| Bones grow in diameter due to bone formation ________ | In the endosteum or periosteum |
| Which function of the skeletal system would be especially important if you were in a car accident? | protection of internal organs |
| The joints between the articulating surfaces of the vertebral processes are classified as what type of joint? | gliding |
| A contraction in which muscle length remains the same but muscle tension increases is called an | isometric contraction. |
| The contractile unit of a muscle cell is the | sarcomere. |