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| 1 | |
Which sequence of words goes from most general (most inclusive) to most specific (least inclusive)? |
| | A) | organ system, organs, tissues, cells |
| | B) | organs, organ system, tissues |
| | C) | cells, tissues, organs, organ system |
| | D) | body, organ system, tissues, organs |
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| 2 | |
The total magnification of a compound light microscope is |
| | A) | the magnification of the ocular lens |
| | B) | the magnification of the objective lens |
| | C) | the magnification of the ocular lens divided by the magnification of the objective lens |
| | D) | the magnification of the ocular lens multiplied by the magnification of the objective lens |
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| 3 | |
Keeping in mind that all the body's systems are interconnected, which body system or systems are most closely associated with the process of cellular respiration? |
| | A) | the circulatory system |
| | B) | the respiratory system |
| | C) | the circulatory system, respiratory system, and digestive system |
| | D) | the circulatory system and the respiratory system |
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| 4 | |
If the total magnification of a compound light microscope using the high-power objective lens is 400X, |
| | A) | the magnification of the high-power objective lens is 10X and the magnification of the eyepiece (ocular lens) is 10X. |
| | B) | the magnification of the high-power objective lens is 40X and the magnification of the eyepiece (ocular lens) is 10X. |
| | C) | the magnification of the low-power objective lens is 10X and the magnification of the eyepiece (ocular lens) is 40X. |
| | D) | the magnification of the medium-power objective lens is 10X and the magnification of the eyepiece (ocular) is 40X. |
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| 5 | |
Which sequence of metric prefixes goes from smallest to largest? |
| | A) | micro-, centi-, deci-, deca- |
| | B) | nano-, micro-, mega-, kilo- |
| | C) | nano-, milli-, micro-, centi- |
| | D) | micro-, milli-, deci-, centi- |
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| 6 | |
Glucose is |
| | A) | a monosaccharide (simple sugar). |
| | B) | a disaccharide (simple sugar). |
| | C) | a form of starch (polysaccharide). |
| | D) | a part of a fat molecule. |
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| 7 | |
Which molecule is the source of the greatest amount of energy for the human body? |
| | A) | food |
| | B) | ATP |
| | C) | oxygen |
| | D) | glucose |
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| 8 | |
Which body system is responsible for removing carbon dioxide from the body? |
| | A) | digestive system |
| | B) | excretory system |
| | C) | respiratory system |
| | D) | circulatory system |
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| 9 | |
The role of the cell membrane in regulating movement of substances into and out of the cell is vital because |
| | A) | the cell membrane is selectively permeable. |
| | B) | cells cannot survive for long without taking in food substances and gases and getting rid of wastes. |
| | C) | the cell membrane is a bilayer. |
| | D) | cell membranes are composed mainly of a double layer of phospholipids in which proteins and other molecules are embedded. |
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| 10 | |
Glucose is actively transported across the wall of the small intestine in order to move into the bloodstream. This means that |
| | A) | glucose concentrations are higher in the small intestine than they are in the bloodstream. |
| | B) | glucose enters the walls of the small intestine by diffusion. |
| | C) | glucose is moved against its concentration gradient. |
| | D) | glucose moves with its concentration gradient. |
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| 11 | |
A sample of rainwater has a recorded pH of 5.3. A sample of blood has a recorded pH of 5.5. Which of the following statements is true? |
| | A) | The blood sample is less acidic than the rainwater sample. |
| | B) | The rainwater sample is less acidic than the blood sample. |
| | C) | Stomach acid has a higher pH than both of these samples. |
| | D) | Drain cleaner is less alkaline than both of these samples. |
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| 12 | |
A dorsal view of an organ specimen is illustrated. Which surface is being shown? |
| | A) | the lower (under) part of the specimen |
| | B) | the back end of the specimen |
| | C) | the front end of the specimen |
| | D) | the upper (back) part of the specimen |
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| 13 | |
Nutrients obtained through ingesting and digesting food |
| | A) | make up the digestive system. |
| | B) | provide the body with energy and materials for growth, development, and repair of tissues. |
| | C) | provide the body with essential vitamins and minerals. |
| | D) | must first be synthesized before they can be used by the body. |
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| 14 | |
Oxygen is not a nutrient, but it is an essential component of the processes by which energy is released from food in most animals. This is true because |
| | A) | oxygen is considered a nutrient when discussing the digestive system. |
| | B) | oxygen is needed for anaerobic cellular respiration. |
| | C) | oxygen is needed for aerobic cellular respiration. |
| | D) | oxygen is a by-product of cellular respiration. |
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| 15 | |
Enzymes are |
| | A) | carbohydrates, proteins, and lipids. |
| | B) | protein molecules that increase the rate of biochemical reactions. |
| | C) | substances that cause chemical reactions. |
| | D) | substances that inhibit biochemical reactions. |
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