Ch 11 Review
Answer Section
MODIFIED TRUE/FALSE
1. ANS: T
2. ANS: F
Each organ is made up of groups of different tissues.
3. ANS: F
Organ systems work together to form an organism.
4. ANS: F
Groups of different tissues form organs.
5. ANS: F
The excretory system removes liquid and gaseous waste from the body.
COMPLETION
6. ANS: organ system
7. ANS: tissue
8. ANS: respiratory
9. ANS: organs
10. ANS: circulatory
MATCHING
11.
12.
13.
14.
15.
16.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
C
F
A
D
E
B
SHORT ANSWER
17. ANS:
- A system is made of individual parts that work together as a whole.
- One system is usually connected to one or more other systems.
- If one part of a system is missing or not functioning, the system will not function well or may not function at
all.
18. ANS:
An organ is made up of groups of tissues working together. Organs are important because they take on a
specific function within a more complex, yet specific, system. Answers will vary but may include any one of
the following:
- stomach helps in chemical digestion within the digestive system
- lungs exchange gases within the respiratory (and circulatory) systems
- heart pumps blood within the circulatory system
- brain responds to stimuli within the nervous system
PROBLEM
19. ANS:
You breathe more quickly and deeply, bringing more oxygen into the lungs and on into the blood. Your heart
beats faster to move more blood around the body, and therefore more oxygen and nutrients to the muscles.
Your excretory system releases more water into the system so that your pores can release water (perspiration),
which evaporates and cools your body.
20. ANS:
Tissues are composed of cells. Organs are composed of tissues. Systems are composed of groups of organs.
21. ANS:
Answers will vary, but should include a brief description of each term and an explanation of how each is
related to one another and how they are different.
For example:
organ – a distinct structure containing different types of tissues that work together to perform a specific task
cell – the smallest and most basic functional unit of any living thing
tissue – a group of similar cells that work together to perform a specific function
- An organ contains different types of cells and tissues, but is larger and performs more complex functions
than cells and tissues.
- A cell is part of an organ or a tissue, but it is smaller than an organ or a tissue. Organs and tissues can be
broken down into smaller and simpler functional units that still have the characteristics of life, while a cell
cannot. (Organelles could be described as smaller and simpler functional units, but no organelle, by itself,
exhibits the characteristics of life).
- A tissue is made up of cells. Tissues make up organs. A tissue is larger and more complex than a cell, but
smaller and less complex than an organ.