What type of muscle tissue is found in the lining of organs such as the esophagus, stomach,
and small intestine? - Answers smooth
Atoms are the fundamental units that make up the world around us. Which of the following is
not a part of an atom? - Answers molecules
What term refers to the form of GI movement that both mixes and slowly propels food? -
Answers segmentation
Bile plays an important role in the digestion of which nutrient? - Answers fats
Which of the following GI hormones is released in response to the presence of food in the
stomach and is responsible for increasing gastric emptying? - Answers Gastrin
molecules that contain thousands of atoms bonded together are... - Answers macromolecules
when a chemical bond forms between two glucose molecules - Answers condensation
when a chemical bond forms between two glucose molecules - Answers hydrolysis
have carbon atoms - Answers organic acids
do not have carbon atoms - Answers inorganic acids
when fluids have more hydroxide ions than hydrogen ions they are - Answers basic/alkaline
a substance that releases or binds hydrogen ions, which enables fluids to resist changes in pH -
Answers buffer
a process that does not require energy (ATP) is called - Answers a passive transport
mechanism
one that does require energy (ATP) is called an - Answers active transport mechanism
enables substances to cross cell membranes from a region of higher concentration to a region
of lower concentration without using energy (ATP) in the process - Answers simple diffusion
involves the passive movement of a substance down its concentration gradient (high
concentration to low concentration) but differs from simple diffusion in that it requires the
assistance of a membrane-bound transport protein that facilitates the movement of materials
across cell membranes. - Answers facilitated diffusion
Which of the following organelles produces ATP used by cells and serves as the cell's power
station? - Answers mitochondria
Identify the accessory organ that participates in digestion but is not part of the GI tract. -