Lipid consists elements of
BIOLOGICAL MOLECULES: LIPIDS

Quiz
•
Biology
•
11th Grade
•
Medium
ANIS SALIM
Used 13+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
carbon, oxygen, hydrogen, sulphur
carbon, hydrogen, oxygen, nitrogen
carbon, oxygen, phosphorus
carbon, oxygen, hydrogen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Although carbohydrates and lipids are made of the same elements, they dissolve in different types of solvents, as
carbohydrates dissolve in nonpolar solvents while lipids dissolve in polar solvents
monosaccharides dissolve in nonpolar solvents, like water, while oils dissolve in polar solvents, like benzene
polysaccharides dissolve in polar solvents, like carbon tetrachloride, while waxes dissolve in nonpolar solvents
monosaccharides dissolve in polar solvents, like water, while oils dissolve in nonpolar solvents, like benzene
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Xerophytes are plants that have adapted to live in dry conditions. How do lipids contribute to reducing water loss during transpiration in xerophytes leaves?
Xerophyte leaves have a high phospholipid content that reduces water loss.
Xerophytes have waxy leaves that reduce water loss.
Xerophyte leaves have a low oil content that reduces water loss.
Xerophyte leaves have a low phospholipid content that reduces water loss.
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Write an equation of formation of trigycerides
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is used to dissolve lipids?
Carbon tetrachloride only
Benzene only
Water
Both carbon tetrachloride and benzene
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oil is always in a liquid state at room temperature. What could prevent oil from solidifying in the fridge?
Its low glucose content
Its high melting point
Its high phosphate content
Its unsaturated fatty acids
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The lipids forming the main component of cell membranes of animal cells are different from other lipids because they have ...
phosphorus (P)
calcium (Ca)
oxygen (O)
hydrogen (H)
Answer explanation
The lipids forming the main component of cell membranes are complex lipids called phospholipids. They are complex because, in addition to the alcohol (glycerol) and fatty acids that form simple lipids (e.g., fats, oils, and waxes), they contain a phosphate group and often an additional choline group, which contains a phosphorus (P) atom and a nitrogen (N) atom respectively. The phosphate group (that is present in every phospholipid) is the reason phospholipids are different from many other lipids, as simple lipids only consist of carbon, hydrogen, and oxygen atoms.
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