Physiology Chapter 1 Quiz

Which type of junction prevents the movement of material between cells?

The basal lamina is a cellular layer secreted by the epithelial cells.

What are the two proteins found on the surface of cells in the second cross-section?

The disappearance of anchoring junctions can contribute to ___________, a process where cancer cells spread to other parts of the body.

Match the following epithelial tissue characteristics with their corresponding descriptions:

Epithelial tissue can be categorized based on the number of cell layers and the shape of the cells.

Which of the following is NOT a function of epithelial tissue?

What is the name of the acellular matrix layer that epithelial cells attach to?

Which of the following biomolecules are responsible for storing and transmitting genetic information?

Hydrogen bonds are stronger than covalent bonds.

What is the primary function of lipids in the body?

The ______ buffer system helps maintain the pH balance of blood.

Match the following body cavities with their locations:

Which of the following is NOT a body fluid compartment?

Mutations in DNA can lead to genetic disorders like cystic fibrosis.

Explain the role of buffers in maintaining pH balance within the body.

The body's ability to maintain stable conditions is known as ______.

Positive feedback mechanisms amplify physiological responses.

Which of the following is NOT an example of a lipid?

What is the primary function of thromboxanes?

Match the following terms with their corresponding definitions:

The molecule ______ serves as the backbone for most lipids.

Humans can easily digest cellulose.

What is the significance of the R-group in an amino acid?

Which of these is NOT a major body cavity?

The cell membrane is selectively permeable, meaning it allows some substances to pass through while blocking others.

What is the primary function of mitochondria?

The ______ is a network of interconnected membranes involved in lipid synthesis.

Match the type of cell junction with its primary function:

Which type of epithelial tissue is specialized for transporting substances?

Skeletal muscle is responsible for involuntary movements, such as heart contractions.

What are the three types of cytoskeletal fibers, ranked from smallest to largest?

Which of the following are pyrimidines?

Deoxyribose is a five-carbon sugar that contains oxygen.

What is the universal solvent in biological solutions?

The concentration of a solution is the amount of ______ per unit volume of solution.

Which of the following best describes how the pH scale relates to alkalinity?

Match the following terms with their definitions.

A protein's affinity for a ligand determines how strongly it binds to that ligand.

What is the name of the model that describes the interaction between proteins and ligands, in which the binding site changes its shape to better fit the ligand?

What are the main components of the cell membrane?

The lipid bilayer of the cell membrane is permeable to all molecules.

The ______ is a layer of carbohydrates that surrounds the external surface of the cell, contributing to cell recognition and immune response.

What are the key functions of microtubules in the cell?

Match the following cell structures with their functions:

Which of the following is NOT a type of intracellular compartment?

Tau tangles are a primary biomarker of Alzheimer's disease.

What is the role of differentiation in cell specialization?