BIOL 235
Biology 235- Exam 1 Study Guide
Questions and Answers Graded A+ 2025
•circulatory- transport materials between cells of body
•digestive- breaks down food to be transported into body
•endocrine- coordination of body function
•immune- defend against foreign invaders
•integumentary- protect against external environment
•musculoskeletal- support and movement of body
•nervous- coordinate body function using electrical signal
•reproductive- to reproduce
•respiratory- bringing air in and out of the body
•urinary- waste removal; maintain water -Correct Answers ✔-List the 10 organ
(body) systems and describe one function for each of them. Table 1-1
Anatomy is the study of structure while physiology is the study of what? -Correct
Answers ✔-Physiology is the study of function and how the body part does what it
does
Explain your understanding of homeostasis. Note the difference between the
intracellular fluid (ICF) and extracellular fluid (ECF). In addition to blood plasma,
what constitutes the ECF? -Correct Answers ✔-Homeostasis is the body's tendency
to maintain a certain internal environment. The body's internal environment is
extracellular fluid which contains blood plasma and interstitial fluid. extracellular
fluid is everything inside the body but outside the cell. Intracellular fluid is fluid
within the cells
BIOL 235
, BIOL 235
List 5 factors/homeostatic balances in the body need to be maintained within
certain limits. Why must these factors be maintained? -Correct Answers ✔-oxygen
lvls, glucose lvls, temperature, pH, salt and water. these factors must be maintained
because our body can only function in a certain range.
For each of the five factors you listed, mention one body systems involved with
their homeostasis. -Correct Answers ✔-oxygen lvl- respiratory, glucose lvls-
digestive, temperature- circulatory, pH- respiratory, salt and water- urinary
Draw an animal cell including the following structures: cell membrane, nucleus,
endoplasmic reticulum, Golgi apparatus, mitochondria and lysosomes. -Correct
Answers ✔-DRAW ON PAPER!
In what part of the cell are chromosomes located? -Correct Answers ✔-the nucleus
What is the function of ribosomes? Rough endoplasmic reticulum and Golgi
apparatus? -Correct Answers ✔-•ribosomes is where proteins are made
•rough ER is stubbed with ribosomes and responsible for assembly of proteins
•golgi apparatus- modify, transport, sorting molecules
Briefly, what is the mitochondria? Lysosomes? -Correct Answers ✔-
•mitochondria- where ATP is made
•lysosome- responsible for waste
Explain the difference between desmosomes and tight junctions. Fig. 3.8 -Correct
Answers ✔-DESMOSOMES anchor cells to each other and TIGHT JUNCTION
anchor cells and prevent fluid and molecules from moving between cells
BIOL 235
Biology 235- Exam 1 Study Guide
Questions and Answers Graded A+ 2025
•circulatory- transport materials between cells of body
•digestive- breaks down food to be transported into body
•endocrine- coordination of body function
•immune- defend against foreign invaders
•integumentary- protect against external environment
•musculoskeletal- support and movement of body
•nervous- coordinate body function using electrical signal
•reproductive- to reproduce
•respiratory- bringing air in and out of the body
•urinary- waste removal; maintain water -Correct Answers ✔-List the 10 organ
(body) systems and describe one function for each of them. Table 1-1
Anatomy is the study of structure while physiology is the study of what? -Correct
Answers ✔-Physiology is the study of function and how the body part does what it
does
Explain your understanding of homeostasis. Note the difference between the
intracellular fluid (ICF) and extracellular fluid (ECF). In addition to blood plasma,
what constitutes the ECF? -Correct Answers ✔-Homeostasis is the body's tendency
to maintain a certain internal environment. The body's internal environment is
extracellular fluid which contains blood plasma and interstitial fluid. extracellular
fluid is everything inside the body but outside the cell. Intracellular fluid is fluid
within the cells
BIOL 235
, BIOL 235
List 5 factors/homeostatic balances in the body need to be maintained within
certain limits. Why must these factors be maintained? -Correct Answers ✔-oxygen
lvls, glucose lvls, temperature, pH, salt and water. these factors must be maintained
because our body can only function in a certain range.
For each of the five factors you listed, mention one body systems involved with
their homeostasis. -Correct Answers ✔-oxygen lvl- respiratory, glucose lvls-
digestive, temperature- circulatory, pH- respiratory, salt and water- urinary
Draw an animal cell including the following structures: cell membrane, nucleus,
endoplasmic reticulum, Golgi apparatus, mitochondria and lysosomes. -Correct
Answers ✔-DRAW ON PAPER!
In what part of the cell are chromosomes located? -Correct Answers ✔-the nucleus
What is the function of ribosomes? Rough endoplasmic reticulum and Golgi
apparatus? -Correct Answers ✔-•ribosomes is where proteins are made
•rough ER is stubbed with ribosomes and responsible for assembly of proteins
•golgi apparatus- modify, transport, sorting molecules
Briefly, what is the mitochondria? Lysosomes? -Correct Answers ✔-
•mitochondria- where ATP is made
•lysosome- responsible for waste
Explain the difference between desmosomes and tight junctions. Fig. 3.8 -Correct
Answers ✔-DESMOSOMES anchor cells to each other and TIGHT JUNCTION
anchor cells and prevent fluid and molecules from moving between cells
BIOL 235
