Biomembrane Processes Overview

False (B)

To transport proteins from later to earlier Golgi cisternae.

<p>regulated</p> Signup and view all the answers

<p>Both B and C (A)</p> Signup and view all the answers

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

<p>They transport proteins between organelles.</p> Signup and view all the answers

<p>Constitutive secretion = Proteins move freely to the cell exterior. Cisternal maturation = Modification of proteins in the Golgi. Regulated secretion = Proteins are released in response to signals. Endocytosis = Plasma membrane invagination to uptake material.</p> Signup and view all the answers

<p>Proteins entering the ER as they are being synthesized by ribosomes. (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>The Golgi apparatus modifies proteins as they move through its cisternae.</p> Signup and view all the answers

<p>lysosomes</p> Signup and view all the answers

<p>Endoplasmic Reticulum (ER) = Initial entry point for protein synthesis and transport Golgi Apparatus = Modification and packaging of proteins Lysosomes = Degradation of proteins and cellular waste Transport Vesicles = Transport of proteins between organelles</p> Signup and view all the answers

<p>They are stored in secretory vesicles until an external signal triggers their release. (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Vesicles bud off from donor organelles and fuse with acceptor organelles, transporting proteins and lipids.</p> Signup and view all the answers

<p>living</p> Signup and view all the answers

<p>Stacked, flattened sacs called cisternae. (B)</p> Signup and view all the answers

Process where proteins enter the ER while being synthesized by ribosomes.

Vesicles bud off from the ER to transport proteins to the Golgi apparatus.

Process where Golgi cisternae change composition as proteins pass through.

Proteins move through the Golgi and are sent to the cell exterior constantly.

Proteins stored in vesicles and released in response to signals.

Movement of proteins from Golgi to ER or from later to earlier Golgi cisternae.

Transport of proteins specifically to lysosomes for degradation.

Process where the plasma membrane invaginates to bring in outside materials.

An organelle where proteins enter during synthesis.

Organelle that modifies proteins as they move through.

Flattened sacs in the Golgi involved in protein processing.

Membrane-bound containers that transport proteins.

Organelles that degrade unwanted proteins.

Vesicles that store proteins until they receive a signal.

Substances outside the cell that can be absorbed.

Fluid part of the cytoplasm where processes occur.

Dynamic structures that organize transport processes.