Which of these is NOT a lipid?

Question

RNA
wax
phospholipid
steroids
cholesterol
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Part B
This figure is an example of a(n) _____.
A structure of an organic compound. It has a CH2CHCH2 backbone, and three identical groups attached to each carbon. The group is OC left parenthesis CH2 right parenthesis 14 CH3 with an O double-bonded to the first (from left to right) carbon.

saturated fat
unsaturated fat
protein
nucleic acid
steroid
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Part C
Which of these is a phospholipid?

An organic compound consisting of carbon and hydrogen atoms only. This compound contains three rings, two of which are six-membered and one is five-membered. There is a hydrocarbon chain between the six-membered rings; the five-membered ring is fused with one of the six-membered ones. There is a branched hydrocarbon chain attached to the five-membered ring.
An organic compound containing one amine and one carboxyl functional group attached to one carbon atom of the molecule.
An organic compound consisting of two globular subunits, which contain spiral and straight parts.
An organic compound containing a CH2CHCH2 backbone. The first and the second (from left to right) carbons have a long hydrocarbon chain attached via an OC group (and an O atom is double-bonded to this carbon atom). The third carbon has an OPOCH2CH2N plus left parenthesis CH3 right parenthesis 3 group attached. There are also an O double-bonded and an O minus bonded to the P atom.
An organic compound consisting of a linear chain of six-membered carbon rings connected via an O atom. Each ring has a carbon atom replaced by an oxygen atom. Each carbon has either -H, -OH, or CH2OH attached.
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Part D
Which of these is rich in unsaturated fats?

beef fat
olive oil
lard
a fat that is solid at room temperature
butter
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Part E
A function of cholesterol that does not harm health is its role _____.

in calcium and phosphate metabolism
as a component of animal cell membranes
the most abundant male sex hormone
as the primary female sex hormone
All of cholesterol's effects cause the body harm.
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Answer 1

Part A

Which of these is NOT a lipid?
Answer: RNA

Part B

This figure is an example of a(n) _____.
Answer: unsaturated fat

Part C

Which of these is a phospholipid?
Answer: An organic compound containing a CH2CHCH2 backbone. The first and the second (from left to right) carbons have a long hydrocarbon chain attached via an OC group (and an O atom is double-bonded to this carbon atom). The third carbon has an OPOCH2CH2N+(CH3)3 group attached. There are also an O double-bonded and an O- bonded to the P atom.

Part D

Which of these is rich in unsaturated fats?
Answer: olive oil

Part E

A function of cholesterol that does not harm health is its role _____.
Answer: as a component of animal cell membranes