Answer:
C. They are carried by motor proteins using the cytoskeleton as a "roadway"
Explanation:
Vesicles hitch a ride on molecular motors such as kinesin or myosin, moving along the cytoskeleton until they reach their intended location, where they then fuse with the target membrane or organelle. Typically, vesicles progress from the ER to the cis Golgi, followed by movement from the cis to the medial Golgi, from the medial to the trans Golgi, and finally from the trans Golgi to the plasma membrane or other cellular compartments. While the predominant direction is forward, there are also vesicles that return from the Golgi to the ER, carrying proteins that should have remained in the ER (e.g., PDI) that were inadvertently enclosed in a vesicle.
Answer:
Exocrine glands are characterized by discharging their secretions into duct systems.
Explanation:
Exocrine glands:
These glands transport their secretions through a network of ducts that ultimately connect to the body's exterior. This means there is a direct continuity between the interior surfaces of the glands and their duct system with the external surfaces of the body (like the skin).
Examples of exocrine glands include gastric glands, salivary glands, and sweat glands.
Answer: True
Explosions linked to electricity happen when electric current interacts with air, resulting in energy transfer from electricity to the air. The electrical energy acts as a trigger, exciting the air molecules and leading to an explosion. An explosion is characterized as a quick event involving the release of energy in gaseous form alongside the destruction of nearby structures. For an explosion, both the right fuel and combustion gases are essential. Fuels like methane and natural gases are used, while oxygen plays a crucial role in facilitating the combustion of these fuels.
Answer:
The pathway likely taken is ER - Golgi - vesicles that merge with the plasma membrane.
Explanation:
The endomembrane system comprises a complex network of internal membranes. It was first identified in the late 19th century when Camillo Golgi observed that a specific stain selectively colored certain cellular membranes. Golgi believed these membranes were interconnected; however, subsequent developments in microscopy and biochemical analysis revealed that the organelles within the endomembrane system function as distinct compartments with specialized roles.
Response:
The skeletal system's bones collaborate with the muscular system's muscles.
Clarification: The system composed of muscles and bones allows for movement.
(I hope this is useful; you could also look for the same question as someone might have already addressed it.)
:)
