| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
stabilize, raise |
|
raise, decrease |
|
decrease, raise |
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decrease, stabilize |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
In a eukaryotic cell, which organelles deal with proteins?
all of these deal with proteins |
|
Golgi apparatus |
|
endoplasmic reticulum |
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ribosomes |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles. Ribosomes produce proteins, endoplasmic reticulum helps synthesize proteins and fats, and Golgi apparatus prepares proteins for use.
-40°F is how many °C?
-40 |
|
-8 |
|
\({40 \over 9}\) |
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\(-{40 \over 9}\) |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (-40 - 32)\)
\(C° = {5 \over 9} (-72) = {{-72 \times 5} \over 9}\)
\(C° = {-360 \over 9}\)
\(C° = -40\)
The connective tissue that connects bones to other bones at joints is called:
ligaments |
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knuckles |
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tendons |
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cartilage |
Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).
Arteries carry __________ blood at __________ pressure.
oxygenated, low |
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deoxygenated, low |
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oxygenated, high |
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deoxygenated, high |
Veins carry blood back to the heart from the body. While arteries are thick-walled because they carry oxygenated blood at high pressure, veins are comparatively thin-walled as they carry low-pressure deoxygenated blood. Like the heart, veins contain valves to prevent blood backflow.