Place the Following Steps in the Correct Order for a Reflex

question 59

Multiple Choice

Place the following steps in the correct order for a reflex arc:
1) Sensory neurons pass signals to interneurons.
2) Nerve signals travel along motor fibers to an effector.
3) Sensory receptors generate nerve signals.
4) Interneurons synapse with motor neurons.
5) There is a response to the stimulus.

• A) 3,4,1,2,5
• B) 2,1,3,4,5
• C) 1,2,3,4,5
• D) 3,1,4,2,5
• E) 2,4,1,3,5

---

Definitions:

Plasma Membrane

The plasma membrane is a semi-permeable lipid bilayer that encloses the cytoplasm of a cell, controlling the passage of substances in and out of the cell.

Intermediate Filament

Stable cytoskeletal element of animals and some protists; structurally supports cell membranes and tissues; also forms external structures such as hair.

Cytoskeletal Element

Component of the cytoskeleton, providing structure and shape to cells, and involved in cell division, movement, and transport of materials within the cell.

Centriole

In animal cells, a barrel-shaped organelle from which microtubules grow.