test 3 ch 20

if an athlete damages a ligament in his or her knee he or she has damaged

a connection between two bones

where inthe body would you expect to find bouluntary muscle that has a banded appearance

a muscl ethat beends the knee

which of the followin gwould not b found in the lower small intestine

a smooth surface

ther lower region of the small intestine is structured to create large amounts of surface area so that it can more efficiently

absorb the chemical building blocks that are produced by digestion

the human liver produces bile a substance that

allows fats to disolve more easily in the watery contents of the gut

which of the following statementest about amino acids that are required by adult humans is true?

amino acids are the building blocks of proteins

pancreatic cancer is an esp dangerous disease inhuman bc the panc is

an organ that manufactures many different kins of digestive enzymes

the knee is part of the __ skelton which is desgned primary for__

appndicular motion

as an experienemtn a person who wishes to avoid getting ill during the winter significantly boosts his or her vitamin intake by taking multiple vitamin supplements. this action could

be dangerous because the human body needs vitamins only in small amounts

which of the following bits is not associated with building or maintaining bones and teeth

bit e

which of the following nutrients have the lowest energy content per gram?

bitamins

the structure that is highlighter in that is highlighted in this illustraion of a knee joint is a

bone

which of the following things would you expct to happen if a knee joint was formed without any carilage

bones within the knee would experience friction

as nutrients mobe across an intestinal villus most of the nutrients are absorbed by

capillaries

which of the following states about cardiac muscle is true

cardiac muscle contains bands like skeletal muscle but its contractions are inboluntary like smooth muscle

the gunction of the esophagus is to

carry food to the stomach

which letter in this figure identifies the size where most digestion and nutrient abs takes place

d

if you were a bird about to embark on a long migratory journey which of the following nutrients would you want to have stored in large quantities?

fats

the liver secretes bile to the

gallbladder

one of the advantages of the villi that line the small intestine is that they

increase the surface area abailable for food absorption

whcih of the followin g state about the muscle shown in this figure is true

it is under our conscious control

one of the most common knee injuries is the tearing of the anteririor cruciatle ligament how would an injury like this affect the function of the knee

liag hold the bones in the proplr orientation tearing the liagment could disrupt the alignment of the knee making the knee diff to bend

which of the following seq correctly describes the journey of a potato chip through our digestive tract

mouth to esophagus to stomach to small intestine to large intestine to anus

if a drug attcked and destroyed inboluntary musce cells only which of the following body functions would b affected

movement of materials throught the digestive system

which of the following state saobut what happens during a muscle contraction is true

myosin filaments slide along actin filaments

muscle contractions is caused by

myosin filaments sliding along actin filaments

the adv of chewing food is that this process

probides mech digestion and increases the surface area of the food for further digestion

a genetic mutatation has altered a signaling molecule found embedded within cell membranes this signaling molecule is most likely a

protein

minerals are

required by the human body in small amonts

which of the following sequences correctly describes the organization of muscle tissue from smalles to largest componenet

sarcomeres to myofibrils to muscle fibers

the power that moves food along your esophagus comes form

smooth muscle

after certain knee injuries patients experience a swelling bc of an accumulation of fluid within the knee this condition is refered to as water on the knee which of the following is likely source of this fluid

synovial sac

the most likely protein prob faced by a person who is followinga low-protein diet is the failure to

take in enough essential amino acids

food passing through our digestive tract would contain the fewest nutrients when it reaches which of the following organs

teh large intestine

the structure that is high is

tenon

which of the following organs plays a role in producing vit d

the skin

how rapidly an organism can absorb nutrients generally depends on

the surface are abailable for absorption

bending your elbow involves

the use of voluntary muscles

as a muscle contracts which of the following things happens

the z disck moves closer together

which of the following states best explains why starch molecules must be broken down before they can be absorbed by the small intestine

they are too large to pass through the plasma membrane of the intestinal cells

which of the following statesments about myofibrils is true

they contain many sarcomeres

banessa has been lifting weights to increase strentght inher arms which of the following states about the muscles she is strenghtening is true

they have tendons that are connected to bones

carbohydrates and fats are both

used as energy sources

a student tracks his diet for several weeks a part of a nut project. during the tracking period he realizes that his diet is rich inyellow and orange fruits and veggies, cit fruits , nuts and fish but he tends to aboid most leafy green begetables. which of the following bit is most likely deficient in his diet

vit k

babies may recieve an injection of vit k at birth which of the following is the most likely reason why an injection of vit k would b given

vit k is required to prevent bleedin and babies are born with low levels of this vit