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WorksheetsBiology 4, 5, 7
Total questions: 25
Worksheet time: 15mins
Which of these ISN'T a polysaccharide?
starch
glucose
glycogen
cellulose
Which of these elements is an element found in proteins but not carbohydrates or lipids?
Hydrogen
Oxygen
Nitrogen
Sodium
What are the small molecules linked together to form a protein molecule?
(a)
Which is the reagent that is used to test for reducing sugars?
Iodine solution
DCPIP solution
Ethanol
Benedict's solution
What substance does the emulsion test detect?
Fats
Proteins
Sugars
Carbohydrates
Which of these ISN'T a carbohydrate?
glucose
haemoglobin
starch
cellulose
Which bases in DNA are always linked?
C and G
T and A
X and Y
Y and X
C and A
G and T
X and X
Y and Y
What do we call biological catalysts?
(a)
Which of these terms defines the deactivation of an enzyme because of high temperature or pH?
substration
production
denaturing
active site
What would the substrate of a protease enzyme be?
Glucose
Protein
Carbohydrates
Fats
Why is an enzyme reaction slower at low temperatures?
because enzymes freeze at low temperatures
Because it is outside the enzymes optimum temperature
because enzymes like it hot
What is the active site of an enzyme?
The part that accepts any substrate
The specific molecule that an enzyme attaches to
The part that only accepts a specific substrate
Which describes the process of taking in digested food into the body?
Digestion
Absorption
Egestion
Ingestion
Which of these digestive enzymes breaks down fats?
lipase
amylase
sucrase
trypsin
Are any digestive enzymes secreted from the oesophagus?
Yes
No
Which enzymes are found in the duodenum?
amylase
lactase
lipase
trypsin
What is the gall bladder for?
Producing enzymes
Storing enzymes made by the pancreas
Producing stomach acid
Storing enzymes made by the liver
Which of these teeth is responsible for grinding food?
Molars
Incisors
Premolars
Canines
What is the part of the intestines that absorbs nutrients called?
(a)
What two parts combine to make the small intestine?
Caceum
Ileum
Colon
Duodenum
What parts of the body produce amylase?
Pancreas
Salivary glands
Liver
Gallbladder
Which of these substances are organic?
Iron
Vitamin D
Calcium
Vitamin C
What substance in pancreatic juice neutralizes chyme?
Hydrochloric acid
Sodium Chloride
Sodium Hydrogencarbonate
Sodium Precarbonate
What enzyme in gastric juice is only found in young mammals?
Pepsin
Rennin
Amylase
Lactase
What is Vitamin D useful for?
Used for blood clotting
Makes Hemoglobin
Helps calcium to be absorbed
Makes Collagen
