Cell Structure and Microtubules

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Each microtubule has 13 ______ and each unit is called longitudinal protofilaments.

unit

This structure help maintain ______ shape.

cell

Microtubules are composed of ______ protofilaments.

longitudinal

Microtubule structure is essential for maintaining ______ shape.

cell Signup and view all the answers

The ______ structure of microtubules is crucial for cell division.

microtubule Signup and view all the answers

The two functions of ______ include protection from minor abrasions and binding cells together by forming large bundles.

tonofibrils Signup and view all the answers

Fat droplets exist in ______ cells, adrenal cortex cells, and liver cells.

adipocytes Signup and view all the answers

Glycogen ______ are accumulations of lipid molecules.

granules Signup and view all the answers

[Blank] are certain junctions where tonofibrils attach to bind cells together.

Desmosomes Signup and view all the answers

Tonofibrils form large ______ that attach to desmosomes to bind cells together.

bundles Signup and view all the answers

Dyneins carry material along the ______ toward the nucleus.

microtubule Signup and view all the answers

Remmy INCLUSIONS carry material away from the ______.

nucleus Signup and view all the answers

Dyneins are responsible for ______ transport.

retrograde Signup and view all the answers

This system plays a role in moving vesicles to and through the ______ apparatus.

Golgi Signup and view all the answers

One role of this system is extending the ER from the ______ envelope to the plasmalemma.

nuclear Signup and view all the answers