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Kristina Limburg
Physiology Week 1-7
| Question | Answer |
|---|---|
| homeostasis is known as? | The relatively constant state maintained by the body |
| normal reading or range is called? | set point |
| The body’s thermostat is located in the? | hypothalamus |
| Pathogenesis can be defined as | the course of disease development |
| All proteins have which four elements? | carbon, oxygen, hydrogen, and nitrogen |
| The most important monosaccharide is | glucose |
| DNA is? | a double-helix strand of nucleotides |
| Amino acids frequently become joined by? | peptide bonds |
| The component that distinguishes one nucleotide from another is the | nitrogen base |
| Red blood cells are placed in an unknown solution. After 45 minutes, the cells are examined and determined to have decreased in size. The unknown solution is | hypertonic |
| What is true of RNA? | It is a single strand. It contains uracil rather than thymine. The obligatory base pairs are adenine and uracil, and guanine and cytosine |
| A sequence of three bases forms a | codon |
| Fingernail growth is the result of the mitosis of the cells in the stratum | germinativum |
| Which skin layer contains closely packed, clear cells that contain a gel-like substance called eleidin? | Stratum lucidum |
| Which tissue is most likely to form a keloid scar as it heals? | Connective |
| Which type of tissue has the greatest capacity to regenerate? | Epithelial |
| What is are the two types/functions of bone marrow? | Red & yellow – produces red blood cells and stores energy as fat. |
| Bones grow due to activity in the | Epiphyseal plates |
| What are important functions of the bone? | support. protection. mineral storage. hematopoiesis. |
| The cell organelles that synthesize organic matrix substances in bone formation are | endoplasmic reticulum and Golgi apparatus |
| The contractile unit of a muscle cell is the | sarcomere |
| Joints joined by fibrocartilage are called | symphyses |
| What is true of cardiac muscles | Cardiac muscle is also called striated involuntary muscle and Cardiac muscle contains intercalated disks |
| Which type of muscle is responsible for peristalsis? | Single-unit smooth |
| The mechanisms that produce and maintain the resting membrane potential do so by producing a | slight excess of positive ions on the outer surface of the plasma membrane |
| The active transport mechanism in the plasma membrane that transports sodium and potassium ions in opposite directions and at different rates is the | sodium-potassium pump |
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