| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
Which of these is matter than cannot be separated into different types of matter by ordinary chemical methods?
molecule |
|
element |
|
atom |
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compound |
An element is matter than cannot be separated into different types of matter by ordinary chemical methods.
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
decrease, stabilize |
|
raise, decrease |
|
decrease, raise |
|
stabilize, raise |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
In which type of compound does one atom borrow an electron from another atom?
acidic |
|
chemical |
|
covalent |
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ionic |
A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In covalent compounds, electrons are shared between atoms. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.
Antigens in the blood determine:
negative or positive status |
|
blood type |
|
Rh factor |
|
blood oxygen capacity |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.
As part of digestion, the liver produces bile which breaks down:
protein |
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starches |
|
fat |
|
sugars |
The liver produces bile which emulsifies (separates) fat.