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46 questions
What type of macromolecule contains carbon, hydrogen and oxygen?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule contains carbon, hydrogen, oxygen and nitrogen?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule uses dehydration synthesis to form?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule includes saccharides?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule is the main source of energy?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule ends in -ose?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule stores unused energy?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule is formed from a glycerol and three fatty acids?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule is is formed from amino acids?
Carbohydrates
Protein
Lipids
All of them
This is an image of a...
glycerol
fatty acid
phospholipid
sugar
This is a...
glycerol
sugar
fatty acid
amino acid
Peptides and polypetides are formed from which macromolecule?
Carbohydrate
Protein
Lipid
Fat
Nucleotides are the components of...
DNA
Proteins
Carbohydrates
Polypeptides
Which of the following is true of coagulation?
A temporary physical change that can occur to proteins
A temporary chemical change that can occur to proteins
A permanent physical change that can occur to proteins
A permanent chemical change that can occur to proteins
Which of the following is true of denaturation?
A temporary physical change that can occur to proteins
A temporary chemical change that can occur to proteins
A permanent physical change that can occur to proteins
A permanent chemical change that can occur to proteins
Compounds that have the same chemical formula but with a different arrangement of atoms is called...
an active site
a peptide bond
an isomer
denaturation
A substance that acts a catalyst in organism to speed up reactions are called...
substrates
catalytic converters
bolus
enzymes
The flap at the back of the throat that controls what goes into the esophagus and the trachea is the...
peristalsis
epiglottis
chyme
pyloris
The ball of masticated food that travels down the esophagus is called the...
bolus
chyme
ball of food
bile
The involuntary contraction and relaxation of the muscles surrounding the esophagus in order to move food down is called...
gastrin
coagulation
squishy
peristalsis
What is emulsification?
The breaking down of lipids
The dispersion of lipids for better digestion
What happens when you swallow
The substance that activates lipase
The stage of digestion where food is taken in is...
The stage where food molecules are broken down is...
The stage where digested molecules are transported to the cells of the body are...
The stage where food waste is removed from the body is....
The structures which greatly increase the total surface area of the small intestine are...
villi and microvilli
villi and megavilli
peptides and polypeptides
sphincters and chyme
The muscle that prevents acid from entering the esophagus is the
pyloric sphincter
esophageal sphinter
duodenum sphinter
upper stomach sphincter
The muscle that controls movement from the stomach to the small intestine is the
pyloric sphincter
esophageal sphinter
duodenum sphinter
upper stomach sphincter
The enzyme that breaks down carbohydrates is ...
lipase
pepsin
erepsin
amylase
Gastrin causes the production of HCl ,which then causes _________ to turn into ____________ , which then breaks down protein chunks into long chain polypeptides.
pepsinogen, pepsin
pepsin, pepsinogen
tripsinogen, tripsin
tripsinogen, erepsin
Trypsinogen is turned into trypsin by the substance ___________. This occurs in the __________.
enterokinase, stomach
erepsin, stomach
enterokinase, small intestine
erepsin, small intestine
Biles salts are produced in the _________ and stored in the ____________.
pancreas, gall bladder
pancreas, stomach
liver, stomach
liver, gall bladder
A fatty meal will cause the release of ___________, which will slow down the movement of the food.
enterokinase
enterogastrone
glycerol
gastrin
Lipase is released from _______ and breaks down _________.
gall bladder, fats
pancreas, fats
gall bladder, protein
pancreas, protein
The bicarbonate (HCO3-) ion is released from the __________ when there is too much _________.
pancreas, HCl
pancreas, fat
stomach, HCl
stomach, fat
What substance triggers the release of bile salts from the gall bladder?
enterogastrone
erepsin
CCK
HCl
How do enzymes speed up reaction rates?
They reduce the temperature
They reduce the activation energy
They increase the temperature
They increase the activation energy
Which is the correct order of organs in which food is digested?
mouth, stomach, small intestine, large intestine
mouth, small intestine, large intestine, stomach
stomach, mouth, small intestine, large intestine
mouth, stomach, large intestine, small intestine
Which organ absorbs nutrients?
Stomach
small intestine
large intestine
pancreas
What is the main function of the large intestine?
Absorption of food
Egestion of waste
Reabsorption of water
Neutralization of acidic chyme
What type of macromolecule cushion the organs?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule synthesize hormones?
Carbohydrates
Protein
Lipids
All of them
What type of macromolecule is the building block of cells?
Carbohydrates
Protein
Lipids
All of them
What is the optimum temperature of the body?
27 degree Celsius
98 degree Celsius
37 degree Celsius
34 degree Celsius
Which organ releases the bicarbonate ion?
pancreas
gall bladder
stomach
liver
Churned and grinded food creates a thick liquid called...
mucus
bolus
bile
chyme
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