Biology respiratory and digestive terms
how does bile help with the digestion of fats?
bile breaks fat droplets into smaller fat droplets
breathing is regulated by a center in the
brain
what is the role of peptidase
break peptides into amino acids
what is the role of pepsin
break proteins into small polypeptides
the pancreas secretes enzymes and bicarbonate into the
duodenum
which of the following is not a main type of digestive enzyme? enterokinase, lipase, nuclease, carbohydrase, protease
enterokinase
when rib muscled relax
exhalation begins
when you exhale as fully as you can, the extra air is called?
expiratory reserve volume
what is the role of lipase?
fat droplets break into glycerol and fatty acids
the epiglottis is
flap that covers windpipe when eating or drinking
air moves into the lungs when the diaphragm is
flattened down by contraction
digestion is defined as the process whereby
food is chemically and physically broken down
alveoli are
sacs at end of bronchioles
which of the following are absorbed by lacteals
starches
what is the max amount of air that can be forced in our out of the lungs called?
vital capacity
the removal of a large section of the colon is likely to affect the
water balance in the body
bronchus is
tube branching from trachea
the function of the gallbladder is to
store bile
the nutrients in food are broken down by enzymes so that they can be
absorbed
the trachea is
air tube that connects mouth to lungs
4 steps of digestion do not include: absorption, digestion, ingestion or alimentation
alimentation
proteins are made up of long chains of
amino acids
oxygen moves from alveoli to blood because
amount of oxygen in blood is low
the pharynx is
area in throat that is passageway for air and food
what do cells need oxygen for?
cellular respiration
which would you notice the change in in 6 hours? why ham, apple splice, bread, chocolate bar
ham because it will shrink its size
what is the extra air that can be inhaled on top of normal breathe
inspiratory reserve volume
which part of the digestive system has the greatest number of folds?
jejunum
the trachea is strengthened and help open by
loops of cartillage
nutrients are also known as
macromolecules
out of the following which is not a macromolecule? metabolites, nucleic acids, lipids, carbs or proteins?
metabolites
digestion of nutrients start in
mouth
expiration is..
move air out of lungs
lipids act as energy molecules and
part of cell membranes
where in the digestive tract does the chemical digestion of protein begin
stomach
the function of the cardiac sphincter is to prevent back flow of acid chyme from the
stomach to esophagus
during exhalation, what structure does air pass through immediately after leaving the bronchioles?
the bronchi
when a person is breathing normally, the amount of air that is exhaled is called the
tidal volume
most oxygen is carried by the blood bound to hemoglobin. most carbon dioxide is transported by the blood dissolved in blood fluids. T OR F?
true