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Chapter 3: Q. 21 (page 93)
Why are biological macromolecules considered organic?
They are made up of elements including carbon atoms.
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Cholesterol is an integral part of plasma membranes.
Based on its structure, where is it found in the
membrane?
a. on the extracellular surface
b. embedded with the phospholipid heads
c. within the tail bilayer
d. attached to the intracellular surface
Saturated fats have all of the following characteristics
except:
a. they are solid at room temperature
b. they have single bonds within the carbon chain
c. they are usually obtained from animal sources
d. they tend to dissolve in water easily
What are the four types of RNA and how do they function?
During the breakdown of polymers, which of the
following reactions takes place?
a. hydrolysis
b. dehydration
c. condensation
d. covalent bond
Plant cell walls contain which of the following in
abundance?
a. starch
b. cellulose
c. glycogen
d. lactose
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