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SCI221 - Juan G
week 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: | viruses |
| Local control or _____, intrinsic mechanisms often make use of chemical signals. | autoregulation |
| Prostaglandins and steroids share which of the following characteristics? | Both have a ring structure in their molecule |
| The most important monosaccharide is | glucose |
| When the chromosomes align themselves across the equator of the spindle fibers, it is characteristic of which phase of mitosis? | Metaphase |
| The physical process by which water and solute move through a membrane when a hydrostatic pressure gradient exists across the membrane is the process of: | filtration |
| The small water channels in the cell membrane are called: | aquaporins |
| Water pressure that develops in a solution as a result of osmosis into that solution is called _____ pressure. | osmotic |
| Connective tissue forms from stem cell tissue called: | mesenchyme |
| A tissue is: | a group of similar cells that perform a common function |
| Bones grow in diameter by the combined action of which two of the three bone cell types? | osteoblasts and osteoclasts |
| Normally, bone loss will begin to exceed bone gain between the ages of _____ years | 35 and 40 |
| After the age of 50, the density of bone: | decreases slowly because of a shift in the remodeling activity |
| The rotator cuff muscles and tendons form a cufflike arrangement around the _____ joint. | shoulder |
| The largest and most frequently injured joint is the: | knee |
| Which type of muscle does not have T-tubules? | Smooth |
| The protein molecule that has heads jutting out for cross-bridging is: | myosin |