Q1. What is Anatomy & Physiology (A&P)?

Background

Topic: Introduction to Anatomy & Physiology

This question is testing your understanding of the definitions and distinctions between anatomy and physiology, which are foundational concepts in this course.

Key Terms

• Anatomy: The study of the structure of body parts and their relationships to one another.

• Physiology: The study of the function of the body and how its parts work together.

Step-by-Step Guidance

1. Start by defining anatomy in your own words. Think about what it means to study the structure of the body.

2. Next, define physiology. Consider how it differs from anatomy and what it means to study function.

3. Reflect on how these two fields are related and why both are important for understanding the human body.

Try solving on your own before revealing the answer!

Q2. What are the levels of complexity in the human body (cells, tissues, etc.)?

Background

Topic: Levels of Organization

This question tests your knowledge of the hierarchical organization of the human body, from the simplest to the most complex levels.

Key Terms

• Cell: The basic unit of structure and function in living things.

• Tissue: Groups of similar cells performing a common function.

• Organ: Structures composed of two or more tissue types that perform specific functions.

• Organ System: Groups of organs that work together to perform complex functions.

• Organism: The complete living being.

Step-by-Step Guidance

1. List the levels of organization in order from simplest to most complex.

2. For each level, briefly describe what it consists of or represents.

3. Think about examples for each level (e.g., a muscle cell, muscle tissue, the heart, the circulatory system, the human body).

Try solving on your own before revealing the answer!

Q3. What is the basic unit of structure and function in the human body?

Background

Topic: Cells

This question is testing your understanding of the fundamental building block of all living organisms.

Key Term

• Cell: The smallest unit of life that can carry out all the processes necessary for life.

Step-by-Step Guidance

1. Recall what the smallest living unit in the body is.

2. Think about what structure is common to all living things and is responsible for both structure and function.

Try solving on your own before revealing the answer!

Q4. What is homeostasis?

Background

Topic: Homeostasis

This question tests your understanding of how the body maintains a stable internal environment despite external changes.

Key Term

• Homeostasis: The maintenance of a stable internal environment within narrow limits.

Step-by-Step Guidance

1. Think about what it means for the body to keep conditions constant (e.g., temperature, pH, glucose levels).

2. Consider why this stability is important for survival and function.

Try solving on your own before revealing the answer!

Q5. What are positive and negative feedback? Give definitions and examples.

Background

Topic: Feedback Mechanisms in Homeostasis

This question tests your understanding of how the body regulates itself using feedback loops.

Key Terms

• Negative Feedback: A mechanism that reverses a deviation from the set point; the most common feedback mechanism in the body.

• Positive Feedback: A mechanism that amplifies a change away from the set point.

Step-by-Step Guidance

1. Define negative feedback and think of a common physiological example (e.g., body temperature regulation).

2. Define positive feedback and consider an example (e.g., blood clotting or childbirth).

3. Explain how each type of feedback affects homeostasis.

Try solving on your own before revealing the answer!

Q6. What substance is MOST important for humans?

Background

Topic: Essential Substances for Life

This question is testing your knowledge of the most vital substance for human survival and physiological processes.

Key Term

• Water: The most abundant and essential compound in the human body.

Step-by-Step Guidance

1. Think about which substance makes up the largest percentage of the human body.

2. Consider why this substance is critical for chemical reactions, temperature regulation, and transport.

Try solving on your own before revealing the answer!

Q7. What are the types of membranes (parietal, visceral, etc.)?

Background

Topic: Body Membranes

This question tests your knowledge of the different types of membranes that line body cavities and organs.

Key Terms

• Parietal membrane: Lines the cavity wall.

• Visceral membrane: Covers the organs within the cavity.

• Serous membrane: A double-layered membrane that produces serous fluid.

Step-by-Step Guidance

1. Identify the difference between parietal and visceral membranes.

2. Recall examples of where these membranes are found (e.g., pericardium, pleura, peritoneum).

3. Think about the function of serous fluid between these layers.

Try solving on your own before revealing the answer!

Q8. What are the functions of each of the body systems (Digestive, Respiratory, etc.)?

Background

Topic: Organ Systems

This question tests your understanding of the major functions of each organ system in the human body.

Key Terms

• Digestive system: Breaks down food and absorbs nutrients.

• Respiratory system: Exchanges gases (O2 and CO2) with the environment.

• Other systems: Circulatory, nervous, muscular, skeletal, etc.

Step-by-Step Guidance

1. List each major organ system.

2. Write a brief function for each system (one sentence each).

3. Think about how these systems interact to maintain homeostasis.

Try solving on your own before revealing the answer!

Q9. What is anatomical position? What does “superficial” mean? What are the sections of the body (frontal, sagittal, etc.)?

Background

Topic: Anatomical Terminology

This question tests your understanding of standard anatomical terms and body planes.

Key Terms

• Anatomical position: The standard reference position for the body.

• Superficial: Toward or at the body surface.

• Body sections/planes: Frontal (coronal), sagittal, transverse (horizontal).

Step-by-Step Guidance

1. Describe the anatomical position (body posture, orientation of palms, feet, etc.).

2. Define “superficial” and contrast it with “deep.”

3. List and describe the major body planes (frontal, sagittal, transverse).

Try solving on your own before revealing the answer!

Q10. What is the diaphragm?

Background

Topic: Body Cavities and Muscles

This question tests your knowledge of the structure that separates the thoracic and abdominal cavities and its function.

Key Term

• Diaphragm: A dome-shaped muscle important for breathing.

Step-by-Step Guidance

1. Identify the location of the diaphragm in the body.

2. Describe its role in separating body cavities.

3. Explain its function in respiration.

Try solving on your own before revealing the answer!

Q11. What are electron shells and how many electrons are in each?

Background

Topic: Atomic Structure

This question tests your understanding of how electrons are arranged around the nucleus of an atom.

Key Terms

• Electron shell: Energy levels where electrons are found.

• First shell: up to 2 electrons

• Second shell: up to 8 electrons

• Third shell: up to 8 electrons (for basic A&P)

Step-by-Step Guidance

1. Recall the maximum number of electrons in each shell (first three shells).

2. Think about how this arrangement affects chemical bonding.

Try solving on your own before revealing the answer!

Q12. What are acids and bases on the pH scale (numbers)?

Background

Topic: pH and Chemical Properties

This question tests your understanding of the pH scale and how it relates to acids and bases.

Key Terms

• pH scale: Measures hydrogen ion concentration; ranges from 0 to 14.

• Acid: pH less than 7

• Base: pH greater than 7

• Neutral: pH of 7

Step-by-Step Guidance

1. Recall the range of the pH scale.

2. Identify which numbers represent acids, bases, and neutral substances.

3. Think of examples of each (e.g., stomach acid, blood, bleach).

Try solving on your own before revealing the answer!

Q13. What are the different types of bonds?

Background

Topic: Chemical Bonds

This question tests your knowledge of the main types of chemical bonds found in biological molecules.

Key Terms

• Ionic bond: Transfer of electrons between atoms.

• Covalent bond: Sharing of electrons between atoms.

• Hydrogen bond: Weak attraction between a hydrogen atom and another electronegative atom.

Step-by-Step Guidance

1. List the three main types of bonds.

2. Describe how each bond forms (transfer, sharing, or attraction).

3. Think of examples of each type in the body (e.g., NaCl, water, DNA).

Try solving on your own before revealing the answer!

Q14. What is alkalosis and acidosis?

Background

Topic: Acid-Base Balance

This question tests your understanding of pH imbalances in the body.

Key Terms

• Acidosis: Blood pH below 7.35

• Alkalosis: Blood pH above 7.45

Step-by-Step Guidance

1. Recall the normal pH range for blood.

2. Define what happens when pH falls below or rises above this range.

3. Think about possible causes or consequences of each condition.

Try solving on your own before revealing the answer!

Q15. What is DNA, what does it do, and what is it made of?

Background

Topic: Nucleic Acids

This question tests your understanding of the structure and function of DNA.

Key Terms

• DNA (deoxyribonucleic acid): The molecule that stores genetic information.

• Nucleotide: The building block of DNA, consisting of a sugar, phosphate, and nitrogenous base.

Step-by-Step Guidance

1. Define DNA and its role in the cell.

2. Describe what DNA is made of (nucleotides).

3. Think about the structure (double helix) and function (genetic code).

Try solving on your own before revealing the answer!

Q16. Which macromolecules are hydrophobic?

Background

Topic: Biological Macromolecules

This question tests your understanding of the properties of different macromolecules, especially their interaction with water.

Key Term

• Hydrophobic: Repelled by water; does not dissolve in water.

Step-by-Step Guidance

1. Recall the four main types of macromolecules: carbohydrates, lipids, proteins, nucleic acids.

2. Identify which of these do not mix well with water.

3. Think about the structure of these molecules and why they are hydrophobic.

Try solving on your own before revealing the answer!

Q17. What does “chemically inert” mean?

Background

Topic: Chemical Reactivity

This question tests your understanding of the term "inert" as it applies to elements and compounds.

Key Term

• Chemically inert: Not reactive; does not easily form chemical bonds.

Step-by-Step Guidance

1. Think about what it means for an atom to be stable.

2. Recall which group of elements on the periodic table are inert (noble gases).

3. Consider why these elements do not react easily with others.

Try solving on your own before revealing the answer!

Q18. What are proteins made of?

Background

Topic: Proteins and Amino Acids

This question tests your knowledge of the building blocks of proteins.

Key Term

• Amino acids: The monomers that make up proteins.

Step-by-Step Guidance

1. Recall the basic building block of proteins.

2. Think about how these building blocks are linked together (peptide bonds).

3. Consider the variety of amino acids and how they determine protein structure.

Try solving on your own before revealing the answer!

Q19. What is phagocytosis?

Background

Topic: Cellular Transport

This question tests your understanding of a specific type of endocytosis used by cells to engulf particles.

Key Term

• Phagocytosis: The process by which a cell engulfs large particles or other cells.

Step-by-Step Guidance

1. Define phagocytosis and identify which cells perform it (e.g., white blood cells).

2. Describe the steps involved in the process (engulfment, formation of a vesicle, digestion).

3. Think about the importance of phagocytosis in immunity.

Try solving on your own before revealing the answer!

Q20. What is the difference between active and passive transport? Which require energy?

Background

Topic: Membrane Transport

This question tests your understanding of how substances move across cell membranes.

Key Terms

• Active transport: Movement of substances against a concentration gradient, requiring energy (ATP).

• Passive transport: Movement of substances down a concentration gradient, without energy input.

Step-by-Step Guidance

1. Define active and passive transport.

2. Identify which type requires energy and why.

3. Give examples of each (e.g., sodium-potassium pump for active, diffusion for passive).

Try solving on your own before revealing the answer!

Q21. What is cancer (in terms of mitosis)?

Background

Topic: Cell Division and Disease

This question tests your understanding of how uncontrolled cell division leads to cancer.

Key Terms

• Mitosis: The process of cell division that produces two identical daughter cells.

• Cancer: Uncontrolled cell division due to loss of regulation in mitosis.

Step-by-Step Guidance

1. Recall the normal purpose of mitosis in the body.

2. Describe what happens when mitosis is not properly regulated.

3. Think about how this leads to tumor formation and cancer.

Try solving on your own before revealing the answer!

Q22. What is apoptosis?

Background

Topic: Programmed Cell Death

This question tests your understanding of the process by which cells self-destruct when no longer needed or damaged.

Key Term

• Apoptosis: Programmed cell death; a normal, controlled process.

Step-by-Step Guidance

1. Define apoptosis and its role in the body.

2. Consider why apoptosis is important for health and development.

3. Think about what happens if apoptosis does not occur properly.

Try solving on your own before revealing the answer!

Q23. What are telomeres? (Hint: mitotic clock)

Background

Topic: Cell Division and Aging

This question tests your understanding of the structures that limit the number of times a cell can divide.

Key Term

• Telomeres: Repetitive DNA sequences at the ends of chromosomes that protect them during replication.

Step-by-Step Guidance

1. Define telomeres and their location on chromosomes.

2. Explain how telomeres shorten with each cell division.

3. Relate telomere shortening to the concept of a "mitotic clock."

Try solving on your own before revealing the answer!

Q24. What are the 3 major parts of a cell?

Background

Topic: Cell Structure

This question tests your knowledge of the basic components found in all human cells.

Key Terms

• Plasma membrane: The outer boundary of the cell.

• Cytoplasm: The fluid and organelles inside the cell.

• Nucleus: The control center containing DNA.

Step-by-Step Guidance

1. List the three main parts of a typical human cell.

2. Briefly describe the function of each part.

Try solving on your own before revealing the answer!

Q25. What are the steps of mitosis? Know the major events in each step.

Background

Topic: Cell Division

This question tests your understanding of the phases of mitosis and what happens in each phase.

Key Terms

• Prophase

• Metaphase

• Anaphase

• Telophase

Step-by-Step Guidance

1. List the four main phases of mitosis in order.

2. For each phase, write a brief description of the key events (e.g., chromosome condensation, alignment, separation, reformation of nuclei).

3. Remember that cytokinesis (division of cytoplasm) often overlaps with telophase.

Try solving on your own before revealing the answer!