WorksheetsCarbohydrates
Total questions: 29
Worksheet time: 10mins
What is the chemical formula for glucose?
C6H12O6
C6H6O6
C7H12O7
C3H8O8
How to you complete the test to show the presence of sugar?
Add Benedict's solution
Add Benedict's solution and heat
Add Biuret solution
Add iodine solution
Which term describes what glucose is?
Polysaccharide
disaccharide
monosaccharide
What are the only elements found in carbohydrates?
glucose and monosaccharides
carbon, hydrogen and oxygen
carbon, hydrogen, oxygen and nitrogen
atoms and molecules
Which of the following are disaccharides?
Which chemical reaction in the human body requires glucose
photosynthesis
digestion
respiration
mitochondria
What is the main function of carbohydrates in the human body?
mitosis
excretion
produce energy
release energy
Glucose is a compound. What is a compound?
a atom on its own
Atoms of the same element chemically combined
Atoms of different elements chemically combined
Atoms of the same element arranged in a ring structure
What type of carbohydrate is starch?
polysaccharide
monosaccharide
disaccharide
What is the chemical test for starch?
iodine solution
Benedict's solution
iodine solution and heat
Benedict/s solution and heat
What colour change does starch show with iodine solution?
yellow to purple
yellow to blue/black
yellow to orange
yellow to green
What colour change does starch show with Benedict's solution?
yellow to blue/black
blue to black
no colour change
blue to brick red
What colour change does glucose show with iodine solution?
yellow to blue/black
yellow to brick red
blue to brick red
no colour change
Which type of polysaccharide is cellulose?
monosaccharide
disaccharide
polysaccharide
Where is cellulose found in living organisms?
animal cell membrane
plant cell membrane
animal cell wall
plant cell wall
Which polysaccharide do plant cells store for energy?
starch
cellulose
glycogen
sucrose
Which sugar is found in the blood of a human?
sucrose
glucose
starch
lactose
Which polysaccharide do humans store in their body?
starch
cellulose
glycogen
sucrose
Where do humans store glycogen in their body?
muscles and liver
brain and bladder
heart and lungs
kidney and pancreas
What safety precautions are needed when heating sugars with Benedict's solution?
wear safety spectacles
Wear a lab coat
tie hair back
use a test tube holder
What can cause a risk when testing a solution for sugar?
The sugar solution
The Benedict's solution
Hot water
What apparatus is this?
test tube
test tube rack
pipette
syringe
What is this piece of apparatus?
test tube race
oven
electronic water bath
incubator
What apparatus is this?
syringe
pipette
mounted needle
measuring cylinder
What two chemicals are shown in the picture?
iodine and starch
starch and glucose
cellulose and starch
Which food group do starch and glucose belong to?
proteins
carbohydrate
lipids
polysaccharides
What does the picture show?
glucose crystals in an animal cell
sucrose dissolved in the vacuole of a plant cell
starch grains in an animal cell
starch grains in a plant cell
What chemical has caused these colour changes?
iodine solution
Benedict's solution
Biuret solution
What apparatus is shown?
test tube holder
test tube rack
test tube incubator
test tube safety device
