Question

Which is the following is an example of compartmentation at the intracellular level?

Group of answer choices

Skeletal muscle cells have organelles called sarcoplasmic reticulum (SR) that contain large stores of calcium ions. The calcium is released during muscle contraction and then pumped back into the SR as the muscle relaxes.

The heart is divided into four chambers, with two upper chambers that receive incoming blood and two lower, more muscular chambers that send blood out into the circulation.

Regions of the brain are specialized for different functions.

The walls of arteries consist of an outer connective tissue layer, a middle layer of smooth muscle and elastic fibers, and an inner endothelial lining.

Answer 1

compartmentation at the intracellular level means, inside the cell there are various organelles like mitochondria, endoplasmic reticulum golgi complex, each of which is a compartment and has its own function inside the cell.

heart dividing into 4 chambers is structural feature is not about what is happening in the cardiac cell.

the wall of arteries structure is decribed by the number of layers of tissue present in it is not compartmentatlization inside the cell.

skeletal muscles have sarcolemma that endoplasmic reticulum contain calcium inside it. is an example of compartmentalization

so, the answer is Skeletal muscle cells have organelles called sarcoplasmic reticulum (SR) that contain large stores of calcium ions. The calcium is released during muscle contraction and then pumped back into the SR as the muscle relaxes.