Carbohydrates

Quiz
•
Biology
•
10th Grade
•
Medium
hagar mohamed
Used 7+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
which of the following represents assymetrical disaccharide and is present in the plant cells?
maltose
lactose
sucrose
glucose
Answer explanation
both maltose and sucrose can be found in plant cell,
maltose in malt plant but we will not choose it bec it consists of two symmetrical glucose
we will choose sucrose as it's found in sugarcane plant and it consists of assymetrical molecules which are glucose and fructose
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
which of the following molecules contain carbon atom?
water
table salt
Ammonia
Glucose
Answer explanation
we will choose glucose as it's an organic molecule so it's must contain carbon
water is H2O , ammonia is NH3 and table salt is NaCl, they are inorganic molecules
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
what is the least number of hydrogen atoms that share in monosaccharide formation?
4
6
8
10
Answer explanation
the number of carbon in monosaccharide is from 3 to 6 atoms
as number of hydrogen atoms is double the number of carbon, so that the umber of hydrogen atom will be 6 , 8 , 10 or 12 (the least number is 6)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The following diagram illustrates a plant complex sugar:
what does this figure represents?
starch
glycogen
sucrose
lactose
Answer explanation
glycogen is the complex sugar stored in the liver of human and and animals. while, starch is the complex sugar that stored in plant
5.
OPEN ENDED QUESTION
3 mins • 1 pt
waht is the similarity between galactose and lactose?
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Answer explanation
both of them are simple sugar
soluble in water
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
you have 3 carbohydrates (A, B & C). if A and B belong to the same group of substances, and A is a part of B. and C is produced from the combination of several molecules of compound A. which of the following represents A, B and C respectively?
glucose/fructose/sucrose
glucose/maltose/starch
glucose/galactose/lactose
glucose/glycogen/sucrose
Answer explanation
glucose and maltose are from the same group which is simple sugar
glucose is part of maltose as maltose consists of two molecules of glucose
starch is formed from combination of several molecules of glucose
7.
OPEN ENDED QUESTION
3 mins • 1 pt
"monosacharides have the same molecular weight" how far is this statement correct? with explaination
Evaluate responses using AI:
OFF
Answer explanation
the statement is wrong as all monosaccharides consist of one molecule but the number of carbon atom may vary between 3 to 6 thus the nuber of hydrogen and oxygen will vary.
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