Chapter 24, Animal Digestion Video Solutions, Must Know High School Biology

Problem 1

The first stage of digestion is , when you take a bite of food. That food is broken up during the process of when large molecules are broken up into smaller components. The small components are more easily taken up into the bloodstream through the process of . Finally, any indigestible material is passed out of the body through

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Problem 2

What type of enzymatic reaction is responsible for chemical digestion of food?

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Problem 3

What structural detail of the small intestine helps increase its ability to absorb nutrients?

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Problem 4

Fill in the following table about gastric cell function:

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Problem 5

Explain the difference between mechanical digestion and chemical digestion.

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Problem 6

Match the following terms with their correct definition:
\begin{tabular}{l|l|l|}
\hline a. alimentary canal & 1. Location of protein digestion by an enzyme that only \\
\hline functions in acidic conditions \\
\hline b. esophagus & 2. Stores bile \\
\hline c. liver & 3. First site of mechanical digestion \\
\hline d. large intestine & 4. Secretes a large number of digestive enzymes (plus \\
\hline e. mouth & insulin!) \\
\hline f. pancreas & 6. Undigested food is passed through here \\
\hline g. salivary glands & 7. The majority of nutrient absorption occurs here \\
\hline h. small intestine & 8. Term for entire length of digestive tract \\
\hline i. rectum & 9. Produces bile \\
\hline i. gall bladder & 10. Major role is reabsorption of water \\
\hline k. stomach & 11. Food tube that doesn't help in digestion \\
\hline
\end{tabular}

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Problem 7

If you compared the lengths of the ceca (plural of cecum) of a tiger versus a rabbit, what difference would you expect and why?

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Problem 8

Interesting poop trivia! About a third of your poop is composed of and poop is brown because of pigments produced
from the breakdown of

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