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38 Cards in this Set

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Animals without teeth such as earthworms and birds have an orgran that accomplishes the same action as teeth. What is it?
Gizzard
What breaks down food into smaller pieces,breaks up food, increases surface area,and mixes enzymes with food?
Chewing
Which part of the digestive system doesn't produce any secretions that aid in the digestive process?
Esophagus
What are rings of circular muscles that subdivide the gut?
Sphincters
Where is the bolus formed?
mouth
What closes the trachea leading to the lungs during the process of swallowing?
Epiglottis
Which process propels the food down the esophogus into the stomach?
peristalsis
Where does the digestion of proteins begin?
Stomach
What is not a secretion of the stomach?
Lipase
What doesn't digest proteins
Lipase
The first part of the small intestine is ?
Duodenum
What is the first hormone secreted by the intestinal tract in response to the presence of food?
gastrin
What acts enzymatically rather than hormonally
Salivary amylase
which layer lies next to the lumen of the intestinal tract
mucosa
The greatest amount of nutrient absorption takes places in the ?
Small Intestine
What are the tiny projections of the mucosal wall?
villi
Is the liver associated with the secretions of bicarbonate ions?
NO
what is the primary function of the large intestine?
Absorption of water
what should be present in the human diet in the highest percentage?
carbohydrate
lipase is formed in what?
pancreas
what is not a function of the digestive organs?
excretion
What is a crayfish
protosome
How many premolar teeth would be present in an adult human who had two wisdom teeth removed?
8
the double membrane of the mitochondrion in contrast to the membrane of the nucleus
creates two compartments
cells parts used to move chromosomes are the
microtubules
organs bound by membranes
-mitochondria
-chromoplast
-vacuole
-lysosome
organ not bound by membrane
Ribosome
What is the cell theory generalization
all living things are made up of cells
if a cell did not have ribosomes, it would be unable to
form proteins
What pinches off a portion of its membrane to form a vesicle used for storage or transport?
Golgi body
What is not part of the endomembrane system
nucleus
What serves as the internal transportation system of the cell?
Endoplasmic reticulum
what contains enzymes and is the main organelle of intracellular digestion
lysosomes
What cell organelle is responsible for disposal of hydrogen peroxide
peroxixomes\
what may have originated as endosymbiotic bacteria
mitochondria
what organelles are found in both plant and animal cells
-ribosomes
-mitochondria
-plasma membrane
What are types of intracellular connections
-tight junctions
-gap junctions
-plasmodesmata
-adhering junction
What is not a type of intracellular connection
microvilli