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Physiology
Weeks 1-6
| Question | Answer |
|---|---|
| Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are called: | Virus |
| Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease? | Prion |
| Shivering to try to raise your body temperature back to normal would be an example of: | the body trying to maintain homeostasis. and a negative-feedback mechanism. |
| What system is the least involved in homeostasis? | Reproductive |
| What pathogenic organism is the most complex? | Tapeworms |
| A _____ is a functional group that is temporarily unattached and is highly reactive because of unpaired electrons. | free radical |
| The term glycoprotein, a combination of two words, tells you that the compound is made of _____, with _____ being the dominant component. | carbohydrate and protein; protein |
| Which energy-releasing or energy-transferring molecule does not contain a nucleotide? | Creatine phosphate |
| Which is true about the sodium and potassium pump? | Three sodium ions are taken out of the cell. |
| During which stage of mitosis do the centrioles move to the opposite poles of the cell? | Prophase |
| When the chromosomes align themselves across the equator of the spindle fibers, it is characteristic of which phase of mitosis? | Metaphase |
| Twenty-three chromosomes per cell in humans is referred to as: | haploid. |
| The correct order of the phases of mitosis is: | prophase, metaphase, anaphase, telophase. |
| The type of tissue that contains cells called neurons is called: | nervous |
| Which type of tissue has the greatest capacity to regenerate? | Which type of tissue has the greatest capacity to regenerate? |
| Which type of connective tissue helps newborns maintain body temperature by producing heat? | Brown fat |
| Which cells help destroy pathogens and damaged tissue in the brain? | Microglia |
| Basement membrane is composed of molecules made by _____ tissue. | connective and epithelial |
| A tissue is: | a group of similar cells that perform a common function. |
| Which tissue is most likely to form a keloid scar as it heals? | Connective |
| Small cells that synthesize and secrete a specialized organic matrix are | osteoblasts |
| During childbirth, a baby passes through an imaginary plane called the: | pelvic outlet |
| A condition that is caused by an abnormally increased roundness in the thoracic curvature is | kyphosis. |
| The cells responsible for active erosion of bone minerals are called: | osteoclasts. |
| Blood calcium levels involve secretion of which two hormones? | parathyroid and calcitonin |
| Muscle contractions will continue as long as | the calcium ions are attached to the troponin. |
| The protein molecule that has heads jutting out for cross-bridging is: | myosin |
| The first event to occur in muscle relaxation is that: | the sarcoplasmic reticulum begins actively pumping calcium back into its sacs |
| Which type of joint joins the two pubic bones together? | Symphysis |
| After it is released from the sarcoplasmic reticulum, the calcium combines with which protein? | Troponin |
| Thick myofilaments extend the length of the | A-band. |
| Three phases of the twitch contraction are the | latent period, contraction phase, and relaxation phase. |
| White fibers are also called _____ fibers. | fast |
| Attempting to pick up an object too heavy to lift would result in which type of muscle contraction? | Isometric |
| Glucose can be stored in the muscle as | glycogen. |