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Melissa Damerow
Week 7: Assignment
| Questions/Terms | Answers/Definition |
|---|---|
| Of the pathogenic organisms, which of the following are the most complex? | Tapeworms |
| Of the 11 major body systems, which is the least involved in maintaining homeostasis? | Reproductive |
| 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 |
| Intracellular parasites that consist of DNA or RNA surrounded by a protein coat and sometimes by a lipoprotein envelope are called: | viruses. |
| Shivering to try to raise your body temperature back to normal would be an example of: | a negative-feedback mechanism. the body trying to maintain homeostasis. |
| Prostaglandins and steroids share which of the following characteristics? | Both have a ring structure in their molecule. |
| A _____ is a functional group that is temporarily unattached and is highly reactive because of unpaired electrons | free radical |
| A structural lipid found in the cell membrane is a: | phospholipid. steroid. |
| Which of the following is not true of RNA? | It contains ribose sugar. It contains adenine. It is composed of smaller molecules called nucleotides |
| All of the following occur as a result of meiosis except: | chromosome number remains at 46. |
| Diffusion requires: | a concentration gradient. |
| Which is not true about the sodium and potassium pump? | Sodium moves into the cell and potassium moves out of the cell. |
| A saline solution that contains a higher concentration of salt than a red blood cell would be: | hypertonic. |
| Materials can be moved from a low concentration to a high concentration through: | active transport. |
| If a sequence of nitrogen bases in nucleic acid were A-U-C-G-A, which of the following would be true about the nucleic acid? | It contains ribose sugar |
| NaCl would move through the cell membrane in which direction? | Both into and out of the cell |
| Which of the following terms is synonymous with tumor? | Neoplasm |
| When the chromosomes align themselves across the equator of the spindle fibers, it is characteristic of which phase of mitosis? | Metaphase |
| Which of the following vitamins is(are) absorbed through the skin? | Vitamin D Vitamin K Vitamin A |
| Which cells form the blood-brain barrier that protects the brain from harmful substances in the blood? | Astrocytes |
| Which type of tissue has the greatest capacity to regenerate | Epithelial |
| Which of the following epithelial functions is a primary activity of glandular epithelium | Secretion |
| Connective tissue forms from stem cell tissue called: | mesenchyme. |
| Which of the following is not a characteristic of skeletal muscles? | Having one nucleus per cell |
| Hematopoietic tissue can be found in the: | bones. |
| Areolar tissue usually contains which types of cells in the greatest number? | Fibroblasts |
| Which cells electrically insulate axons to increase the speed of conduction? | Oligodendrocytes Schwann cells |
| Please select the bone positioned most superiorly on the human skeleton | frontal |
| As the activity of osteoblasts increases, the: | - amount of calcium in bone increases. -level of calcium in the blood decreases |
| After the age of 50, the density of bone: | decreases slowly because of a shift in the remodeling activity. |
| The primary ossification center of a long bone is located: | in the diaphysis. |
| A person with a fractured patella would expect discomfort in the: | Knee |
| Bones act as a reservoir for which of the following minerals? | - Calcium - Phosphorus |
| Young children’s bones have a greater risk of fracturing because of incompletely ossified bone. | False |
| Due to how the clavicle articulates with the scapula, all shoulder movements involve the sternoclavicular joint. | True |
| If there is an injury to the occipital bone you may expect that which sense is damaged? | vision |
| A gliding joint is an example of a(n) _____ joint. | multiaxial |
| The lactate produced by anaerobic respiration is converted back to glucose in the: | Liver |
| Which type of muscle is responsible for peristalsis? | Single Unit Smooth |
| The first event to occur in muscle relaxation is that: | the sarcoplasmic reticulum begins actively pumping calcium back into its sacs. |
| Which of the following is an incorrect statement regarding heat production? | - The body temperature set point is established by the hypothalamus. - Shivering will increase body temperature. - Body temperature functions on a negative-feedback mechanism. |
| The substance that attracts oxygen in the myoglobin molecule is: | Iron |
| The energy required for muscular contraction is obtained by hydrolysis of | ATP |
| Which joint allows for a unique movement called opposition? | Saddle |
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melissad2504
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