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Carbohydrates Class 10 MCQ Questions With Answers
1.
Which is not a chemical element needed to build sugars?
Carbon
Oxygen
Nitrogen
Hydrogen
2.
What makes up the disaccharide sucrose?
glucose + glucose
glucose + fructose
glucose + galactose
glucose + maltose
3.
______+_____= Maltose
glucose + glucose
glucose+ fructose
glucose + galactose
4.
Which polysaccharide is used by plants to store glucose?
glycogen
cellulose
starch
chitin
5.
Stored in the liver
Starch
Glycogen
Cellulose
6.
What two monosaccharides make up maltose?
glucose + galactose
glucose + glucose
glucose + fructose
glucose + glycogen
7.
Molecules primarily made of elements found in living organisms. Organic molecules make up living organisms. Organic molecules are made of the elements of life: CHNOPS
Inorganic
Carbonic
Organic
Hydraulic
8.
Starch is an example of a polysaccharide found in plants. What is the monomer of starch (Hint: it is an example of a monosaccharide)?
sucrose
glucose
glycogen
lactose
9.
Can form 4 bonds and is the "backbone of life"
Phosphorus
Nitrogen
Oxygen
Carbon
10.
How many categories of carbohydrates are there?
1
2
3
There are no categories
11.
______+_____= sucrose
glucose + glucose
glucose+ fructose
glucose + galactose
12.
When polymers are broken back down into monomers a water molecule is added between the two monomers breaking them up.
Dehydration Synthesis
Hydrolysis
13.
Sucrose (table sugar) Lactose (Milk Sugar) Maltose (Grain sugar) are examples of
polysaccharides
monosaccarides
disaccharides
14.
Found in fruits, vegetables, grains, potatoes, pasta, breads.
Starch
Glycogen
Cellulose
15.
Smallest unit a biomolecule can be broken down into while still maintaining the properties.
Polymer
Monomer
16.
Many monomers bonded together create a polymer.
Polymer
Monomer
17.
What two groups are removed from monosaccharides to form disaccharides or polysaccharides
water and oxygen
hydrogen and hydroxyl group
carbon and hydrogen
water and carbon
18.
Which is a simple sugar
sucrose
glucose
19.
The 3 categories of carbohydrates are:
Monosaccharide, disaccharide, polysaccharide
glucose, fructose, galatose
starch, cellulose, chitin
There are no categories of carbohydrates
20.
Which monosaccharide is the sweetest?
glucose
fructose
galactose
sucrose
21.
These are all properties of a monosaccharide EXCEPT:
simple sugar
1:2:1 ratio
double sugar
used for energy
22.
Carbohydrtaes are made up of
CHO
CHON
CHONS
CHONPS
23.
Carbohydrates are
Hydrophobic
Hydrophilic
24.
Simple sugars are
polysaccharides
disaccharides
monosaccarides
25.
Which of the following is NOT a monosaccharide?
starch
fructose
glucose
galactose
26.
Which polysaccharide makes up the exoskeleton of insects?
cellulose
starch
chitin
glycogen
27.
Carbohydrates are the first source of _______ for the body?
repair
hygiene
fuel
None of these
28.
Which of the following correctly displays the paired forms of stored energy?
glycogen = liver and starch = potatoes
glycogen = potatoes and starch = liver
potatoes = liver and starch = glycogen
All of above
29.
Polymers form when a single water molecule is removed from between two monomers
Dehydration synthesis
Hydrolysis
30.
Lactose is composed of
glucose + fructose
glucose + glucose
glucose + sucrose
glucose + galactose
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