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Match the cytoskeletal filament to its primary function:

Why do lysosomes maintain an acidic internal environment?

What major modification occurs to proteins as they pass through the Golgi apparatus?

Which motor protein moves cargo toward the microtubule minus end?

Acetylcholine causes skeletal muscle contraction, slows heart rate, and stimulates salivary secretion. What accounts for this diversity?

True or False: Phagocytosis involves the engulfment of large particles using pseudopods, whereas pinocytosis is the nonspecific uptake of extracellular fluids.

Fill in the blanks using the dropdown menu to describe the process of mitochondrial transport: Protein is Synthesized in the [1]. The newly made precursor protein contains an N-terminal signal sequence (also called a mitochondrial targeting sequence); This sequence is recognized by a receptor protein located on the [2]. The receptor is part of the [3] which initiates translocation across the outer membrane; The protein begins to thread through the TOM channel into the [4]. The receptor–protein–TOM complex moves laterally in the outer membrane until the signal sequence is recognized by the [5] in the inner membrane. The [6] complexes align, allowing the protein to be [7] across both membranes simultaneously. Mitochondrial chaperones inside the matrix (like Hsp70) help pull the protein through and refold it once import is complete; This process requires energy, usually from [8].

What would be the most likely cellular consequence if a protein produced in the cytosol and destined for the lysosome had its signal sequence removed?

Match the protein transport to the processes that utilize them

This type of art is about stylishness and artificiality. It displays elongated forms, a lack of proportion, and complex arrangements: