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Cell Biology Quiz: Organelles and Functions

10 Questions

1 Views

Cell Biology Quiz: Organelles and Functions

Created by

@IrreplaceableVorticism

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Questions and Answers

What is the primary structure of centrioles composed of?

Lipids

Microtubules (correct)

Proteins

Nucleic acids

Centrioles are membrane-bound organelles.

False

What do centrioles typically appear as when stained with iron hematoxylin?

Two dark bodies near the nucleus

Centrioles are formed of highly organized __________.

microtubules Signup and view all the answers

Match the following characteristics with centrioles:

Non-membranous = Yes Function in cell division = Yes Organized in pairs = Yes Contains ribosomes = No Signup and view all the answers

Which of the following best describes cytoplasmic inclusions?

Temporary, nonliving, and nonessential materials Signup and view all the answers

Cytoplasmic inclusions play a crucial role in cell metabolism.

False Signup and view all the answers

What is one form in which carbohydrates are stored in the liver and muscle?

glycogen Signup and view all the answers

Cytoplasmic inclusions are considered __________ materials in the cytoplasm.

nonliving Signup and view all the answers

Match the following types of cytoplasmic inclusions with their descriptions:

Stored food = Temporary materials Carbohydrates = Stored as glycogen Liver = One of the storage organs Muscle = Another storage location for glycogen Signup and view all the answers

Study Notes

Centrioles

Non-membranous organelles
Composed of highly organized microtubules
Appear as two dark bodies near the nucleus when stained with iron hematoxylin

Cytoplasmic Inclusions

Temporary, nonliving, and nonessential metabolically inactive materials in the cytoplasm
Stored food
- Carbohydrates
  - Stored in the liver and muscle as glycogen
  - Appear as light areas formed of nucleolar sap

Cell Renewal

Most mature specialized cells are not in the active cell cycle (mitosis-interphase-mitosis)
Energy is stored as ATP molecules through oxidative phosphorylation

Rough Endoplasmic Reticulum (rER)

Membranous organelle responsible for protein synthesis
Present mainly in protein-secreting cells
Hydrolytic enzymes are synthesized in the rER, transferred to the Golgi apparatus, and released as primary lysosomes
Cannot be seen with light microscopy, but the acid phosphatase enzyme inside the lysosome can be detected by histochemical reactions

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Description

Test your knowledge on the essential organelles within cells, including centrioles, rough endoplasmic reticulum, and cytoplasmic inclusions. This quiz covers their structures, functions, and importance in cell renewal and metabolism. Perfect for students studying cell biology!