BIO 120 DEL TECH EXAM 1 STUDY GUIDE | COMPREHENSIVE BIOLOGY
STUDY GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027
Define Anatomy - correct answer ✔✔The structure or study of the structure of the body and the
relationship of its parts to each other
Define the Anatomical Position - correct answer ✔✔A position of the body universally used in
anatomical descriptions in which the body is erect, the head is level, the eyes face forward, the upper
limbs are at the sides, the palms face forward, and the feet are flat on the floor
Compare common and anatomical terms used to describe regions of the body - correct answer ✔✔
Directional Terms (Definition) - correct answer ✔✔
Planes (Definition) - correct answer ✔✔
Sections (Definition) - correct answer ✔✔
Discuss the levels of structural organization (chemical through organismic) - correct answer ✔✔- Going
from smallest to largest. Okay so chemical just what it sounds like. This is the atomic level. These are
atoms. These are elements we take those chemicals and we build molecules. Okay. A molecule of DNA
protein, carbohydrate, those kind of things we built. Okay.
- I put organelles in parentheses because
- It's not listed on this chart, but we'll build things that are parts of a cell. So we'll build a nucleus will
build a mitochondria will build a membrane. And those are parts of the cellular level. Okay.
- Cells are the smallest living unit so circle that put a little asterisk in there. Okay, cells need food, they
grow, they reproduce. So they are the smallest living unit of an organism.
- Okay, what is the smallest living unit of the body. It is a cell, not an organ, not a piece of DNA.
- Right, a bunch of cells coming together makes a tissue. Alright, so we can have muscle tissue, we can
have heart tissue can have nervous tissue.
- When those tissues come together, they can build an Oregon. Right. So a neuron is a brain cell a bunch
of neurons together makes nervous tissue, then my nervous tissue comes together and makes an
Oregon and makes the brain. Alright so cells, tissues, organs.
- Organs and then organized into system. So I just use brain right the brain, plus all of our nerves makes
the nervous system.
- The esophagus and the stomach and the intestines make my GI system I gastrointestinal system. Okay.
And then all of our systems working together.
- Make an organism, just like I love her at all. It's me. Alright so that is those are levels of organization.
- You can expect to be asked to put those in order or for me to say which one is larger. Right. So what is a
higher level of organization, a tissue or a cell, tissue is a higher level more things have been built to make
a tissue. So there's a higher
Identify the 11 principal body systems, their organs, and their function - correct answer ✔✔- So the
thing that we will break our units down based off of an anatomy, physiology or our body systems. Alright,
so we're going to start off with.
, - Building, these, these people and then looking at systems, one of the first ones we do is the skeletal
system. Yes, missy cells make tissues tissues make organs organs make systems.
- These are the major systems of our body. I can definitely ask you to name these things, they're not
they're not numbered in any kind of way, but I could ask you and I will ask you on the first exam.
- To name the systems and what are some representative members. Okay, now I'm not going to ask you,
every single one. We haven't studied them yet.
- But if I asked you are the lungs part of the integrity entry system or the respiratory system you
absolutely on an exam on are expected to know that lungs help you read. Okay.
-
Define the major body cavities, the 9 regions of the abdominopelvic cavity, and the organs they contain -
correct answer ✔✔
Define Physiology - correct answer ✔✔Science that deals with the functions of an organism or its parts
Differentiate between the internal and external environments - correct answer ✔✔
Define homeostasis and give examples of how the body maintains homeostasis - correct answer ✔✔-
The condition in which the body's internal environment remains relatively constant within physiological
limits
-
Define negative and positive feedback systems - correct answer ✔✔--> Negative Feedback
- A feedback system that reverses a change in a controlled condition
--> Positive Feedback
- Feedback system strengthens a change in one of the body's controlled conditions
Describe the structure of a generalized cell as seen under the light microscope - correct answer ✔✔
Describe the structure of the cell membrane - correct answer ✔✔- What can diffuse through a cell
membrane? (at 10:43am)
1) Oxygen
2) Carbon Dioxide
3) Steroids
- What gets turned away?
1) Ions
2) Large, uncharged, polar molecules (Glucose)
- What happens when molecules cannot move through a membrane? (What he said at 10:58am)
1) Solute builds up on one side of the membrane (the concentration gradient grows)
2) Water moves instead of solute = Osmosis
A) Water moves to fix the problem
-
Explain the functions of the peripheral and integral proteins - correct answer ✔✔- The difference
between a Membrane Protein (Peripheral Proteins [I think]) and an Integral protein
-
Compare passive and active transport using examples of each - correct answer ✔✔--> "Active Transport"
STUDY GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027
Define Anatomy - correct answer ✔✔The structure or study of the structure of the body and the
relationship of its parts to each other
Define the Anatomical Position - correct answer ✔✔A position of the body universally used in
anatomical descriptions in which the body is erect, the head is level, the eyes face forward, the upper
limbs are at the sides, the palms face forward, and the feet are flat on the floor
Compare common and anatomical terms used to describe regions of the body - correct answer ✔✔
Directional Terms (Definition) - correct answer ✔✔
Planes (Definition) - correct answer ✔✔
Sections (Definition) - correct answer ✔✔
Discuss the levels of structural organization (chemical through organismic) - correct answer ✔✔- Going
from smallest to largest. Okay so chemical just what it sounds like. This is the atomic level. These are
atoms. These are elements we take those chemicals and we build molecules. Okay. A molecule of DNA
protein, carbohydrate, those kind of things we built. Okay.
- I put organelles in parentheses because
- It's not listed on this chart, but we'll build things that are parts of a cell. So we'll build a nucleus will
build a mitochondria will build a membrane. And those are parts of the cellular level. Okay.
- Cells are the smallest living unit so circle that put a little asterisk in there. Okay, cells need food, they
grow, they reproduce. So they are the smallest living unit of an organism.
- Okay, what is the smallest living unit of the body. It is a cell, not an organ, not a piece of DNA.
- Right, a bunch of cells coming together makes a tissue. Alright, so we can have muscle tissue, we can
have heart tissue can have nervous tissue.
- When those tissues come together, they can build an Oregon. Right. So a neuron is a brain cell a bunch
of neurons together makes nervous tissue, then my nervous tissue comes together and makes an
Oregon and makes the brain. Alright so cells, tissues, organs.
- Organs and then organized into system. So I just use brain right the brain, plus all of our nerves makes
the nervous system.
- The esophagus and the stomach and the intestines make my GI system I gastrointestinal system. Okay.
And then all of our systems working together.
- Make an organism, just like I love her at all. It's me. Alright so that is those are levels of organization.
- You can expect to be asked to put those in order or for me to say which one is larger. Right. So what is a
higher level of organization, a tissue or a cell, tissue is a higher level more things have been built to make
a tissue. So there's a higher
Identify the 11 principal body systems, their organs, and their function - correct answer ✔✔- So the
thing that we will break our units down based off of an anatomy, physiology or our body systems. Alright,
so we're going to start off with.
, - Building, these, these people and then looking at systems, one of the first ones we do is the skeletal
system. Yes, missy cells make tissues tissues make organs organs make systems.
- These are the major systems of our body. I can definitely ask you to name these things, they're not
they're not numbered in any kind of way, but I could ask you and I will ask you on the first exam.
- To name the systems and what are some representative members. Okay, now I'm not going to ask you,
every single one. We haven't studied them yet.
- But if I asked you are the lungs part of the integrity entry system or the respiratory system you
absolutely on an exam on are expected to know that lungs help you read. Okay.
-
Define the major body cavities, the 9 regions of the abdominopelvic cavity, and the organs they contain -
correct answer ✔✔
Define Physiology - correct answer ✔✔Science that deals with the functions of an organism or its parts
Differentiate between the internal and external environments - correct answer ✔✔
Define homeostasis and give examples of how the body maintains homeostasis - correct answer ✔✔-
The condition in which the body's internal environment remains relatively constant within physiological
limits
-
Define negative and positive feedback systems - correct answer ✔✔--> Negative Feedback
- A feedback system that reverses a change in a controlled condition
--> Positive Feedback
- Feedback system strengthens a change in one of the body's controlled conditions
Describe the structure of a generalized cell as seen under the light microscope - correct answer ✔✔
Describe the structure of the cell membrane - correct answer ✔✔- What can diffuse through a cell
membrane? (at 10:43am)
1) Oxygen
2) Carbon Dioxide
3) Steroids
- What gets turned away?
1) Ions
2) Large, uncharged, polar molecules (Glucose)
- What happens when molecules cannot move through a membrane? (What he said at 10:58am)
1) Solute builds up on one side of the membrane (the concentration gradient grows)
2) Water moves instead of solute = Osmosis
A) Water moves to fix the problem
-
Explain the functions of the peripheral and integral proteins - correct answer ✔✔- The difference
between a Membrane Protein (Peripheral Proteins [I think]) and an Integral protein
-
Compare passive and active transport using examples of each - correct answer ✔✔--> "Active Transport"
