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Review Questions:

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18.1 Exchanging Materials: Basic Principles

  1. List three reasons cells must be small.

Answer

  1. Give an example of homeostasis.

Answer

Quick Overview

Key Points

18.2 Circulation

  1. What are the functions of the heart, arteries, veins, arterioles, blood, and capillaries?

Answer

  1. How do red blood cells assist in the transportation of oxygen and carbon dioxide?

Answer

  1. How does the function of T-lymphocytes differ from B-lymphocytes?

Answer

  1. What is the function of a phagocyte?

Answer

Quick Overview

Key Points

Animations and Review

Labeling Exercises

Interactive Concept Maps

Case Study

18.3 Gas Exchange

  1. Describe the mechanics of breathing.

Answer

  1. How are blood pH and breathing interrelated?

Answer

  1. Why does a poorly functioning heart result in a person experiencing shortness of breath? (hint: think about carbon dioxide)
Answer

Quick Overview

Key Points

Animations and Review

Labeling Exercises

Case Study

Food for Thought

18.4 Obtaining Nutrients

  1. Describe three ways in which the digestive system increases its ability to absorb nutrients.

Answer

  1. List three functions of the liver.

Answer

  1. Name five digestive enzymes and their functions.

Answer

  1. What is the role of bile in digestion?

Answer

  1. How is fat absorption different from absorption of carbohydrate and protein?

Answer

Quick Overview

Key Points

Animations and Review

Labeling Exercises

Interactive Concept Maps

Experience This!

18.5 Waste Disposal

  1. What is the function of the glomerulus, proximal convoluted tubule, loop of Henle, and distal convoluted tubule?
Answer
  1. Describe how the kidney regulates the amount of water in the body.
Answer

Quick Overview

Key Points

Animations and Review

Labeling Exercises

Interactive Concept Maps








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