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38 Cards in this Set
- Front
- Back
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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?
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Gizzard
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What breaks down food into smaller pieces,breaks up food, increases surface area,and mixes enzymes with food?
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Chewing
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Which part of the digestive system doesn't produce any secretions that aid in the digestive process?
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Esophagus
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What are rings of circular muscles that subdivide the gut?
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Sphincters
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Where is the bolus formed?
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mouth
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What closes the trachea leading to the lungs during the process of swallowing?
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Epiglottis
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Which process propels the food down the esophogus into the stomach?
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peristalsis
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Where does the digestion of proteins begin?
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Stomach
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What is not a secretion of the stomach?
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Lipase
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What doesn't digest proteins
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Lipase
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The first part of the small intestine is ?
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Duodenum
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What is the first hormone secreted by the intestinal tract in response to the presence of food?
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gastrin
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What acts enzymatically rather than hormonally
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Salivary amylase
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which layer lies next to the lumen of the intestinal tract
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mucosa
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The greatest amount of nutrient absorption takes places in the ?
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Small Intestine
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What are the tiny projections of the mucosal wall?
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villi
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Is the liver associated with the secretions of bicarbonate ions?
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NO
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what is the primary function of the large intestine?
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Absorption of water
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what should be present in the human diet in the highest percentage?
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carbohydrate
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lipase is formed in what?
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pancreas
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what is not a function of the digestive organs?
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excretion
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What is a crayfish
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protosome
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How many premolar teeth would be present in an adult human who had two wisdom teeth removed?
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8
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the double membrane of the mitochondrion in contrast to the membrane of the nucleus
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creates two compartments
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cells parts used to move chromosomes are the
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microtubules
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organs bound by membranes
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-mitochondria
-chromoplast -vacuole -lysosome |
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organ not bound by membrane
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Ribosome
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What is the cell theory generalization
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all living things are made up of cells
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if a cell did not have ribosomes, it would be unable to
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form proteins
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What pinches off a portion of its membrane to form a vesicle used for storage or transport?
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Golgi body
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What is not part of the endomembrane system
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nucleus
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What serves as the internal transportation system of the cell?
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Endoplasmic reticulum
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what contains enzymes and is the main organelle of intracellular digestion
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lysosomes
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What cell organelle is responsible for disposal of hydrogen peroxide
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peroxixomes\
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what may have originated as endosymbiotic bacteria
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mitochondria
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what organelles are found in both plant and animal cells
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-ribosomes
-mitochondria -plasma membrane |
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What are types of intracellular connections
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-tight junctions
-gap junctions -plasmodesmata -adhering junction |
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What is not a type of intracellular connection
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microvilli
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