Untitled Quiz

<p>Proteins (A)</p> Signup and view all the answers

<p>Increases surface area for gas exchange (A)</p> Signup and view all the answers

<p>Phosphate heads (A)</p> Signup and view all the answers

<p>6-8 um (B)</p> Signup and view all the answers

<p>Heme portion of hemoglobin (B)</p> Signup and view all the answers

<p>To act as channels for the diffusion of ions and molecules (A)</p> Signup and view all the answers

<p>By creating a zeta potential that leads to negative charge (B)</p> Signup and view all the answers

<p>Facilitating the transport of oxygen across the membrane (D)</p> Signup and view all the answers

<p>It enhances their ability to slip through narrow blood vessels (B)</p> Signup and view all the answers

<p>The formation of a cloud of negatively charged particles (B)</p> Signup and view all the answers

<p>Integral adhesion proteins (D)</p> Signup and view all the answers

<p>The fluidity and flexibility of the bilayer (A)</p> Signup and view all the answers

<p>Both are involved in cell signaling and transport (B)</p> Signup and view all the answers

<p>It minimizes cell aggregation during circulation (B)</p> Signup and view all the answers

<p>They traverse the entire phospholipid bilayer, connecting the interior and exterior. (D)</p> Signup and view all the answers

<p>Peripheral proteins do not penetrate the bilayer but associate with its surfaces. (C)</p> Signup and view all the answers

<p>Serves as a receptor for antibodies. (A)</p> Signup and view all the answers

<p>Zeta potential influences the stability of RBC suspensions. (C)</p> Signup and view all the answers

<p>They enable interactions between RBCs and vessel walls. (D)</p> Signup and view all the answers

<p>Altered shape leading to increased fragility and hemolysis. (B)</p> Signup and view all the answers

<p>It plays a crucial role in cell signaling during apoptosis. (C)</p> Signup and view all the answers

<p>Phosphatidylcholine. (A)</p> Signup and view all the answers

Proteins that are located on the surface of the cell membrane, not penetrating the entire phospholipid bilayer.

Proteins that span the entire phospholipid bilayer, extending into both the inner and outer layers.

A critical membrane structure composed of two layers of phospholipid molecules.

A type of phospholipid typically found in the outer layer of the cell membrane.

A type of phospholipid typically found in the inner layer of the cell membrane.

A negatively charged phospholipid that can relocate to the outer layer, found in the inner layer.

Proteins that maintain the structure of red blood cells.

A genetic disorder affecting red blood cell shape, often linked to mutations in integral membrane proteins.

Red blood cells (RBCs) have an average size of 6-8 micrometers.

Red blood cells are biconcave discs, resembling a donut with a central concavity.

The average surface area of a red blood cell is 140 square micrometers.

Red blood cells appear salmon pink due to Hemoglobin.

Hemoglobin is more concentrated on the outer edges of the red blood cell

Red blood cell membranes are mostly comprised of proteins, followed by lipids and carbohydrates.

About 50% of the red blood cell membrane is comprised of protein.

Another name for integral proteins, emphasizing their passage through the entire cell membrane.

The membrane surrounding red blood cells (RBCs), a specialized type of cell in our blood.

The ability of red blood cells to change shape, crucial for their passage through narrow blood vessels.

A molecule found on the cell membrane's surface, particularly on red blood cells, which contributes to a negative charge.

The electrical potential difference between the cell and its surrounding fluid, which can be affected by molecules like sialic acid, creating a negative charge cloud surrounding the cells.

Carbohydrate-based molecules defining different blood groups (e.g., ABO, MNSS).

Integral proteins can serve as portals for substances moving in and out of cells or facilitating interactions between cells.