Ch. 3 The Cellular Level of Organization: Plasma Membrane Structure

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18 Questions

Which organelle in the liver cells helps release glucose into the bloodstream and inactivates or detoxifies lipid-soluble drugs?

Smooth Endoplasmic Reticulum

What is the main function of proteasomes?

Remove unneeded, damaged, or faulty proteins from the cytoplasm

What is the function of drug tolerance in relation to the Smooth Endoplasmic Reticulum?

It increases the tolerance of drugs by increasing the production of detoxifying enzymes

Which organelle is responsible for absorbing and breaking down fatty acids and other organic compounds, while generating hydrogen peroxide?

Peroxisomes

In which organelle does the synthesis of fatty acids and steroids primarily occur?

Smooth Endoplasmic Reticulum

Where are motile cilia mainly found, and what is their primary function?

Respiratory and reproductive systems; they rhythmically move fluids or secretions across cell surface

What is the function of intermediate filaments in a cell?

Support and anchoring of organelles

Which protein filament is responsible for movement and mechanical support within a cell?

Microfilaments

What is the main role of microtubules in a cell?

Intracellular transport of organelles

Which type of ribosome is scattered throughout the cytoplasm and is not attached to the endoplasmic reticulum?

Free ribosomes

What is the primary function of the Golgi apparatus in a cell?

Process, sort, and deliver proteins and lipids

Where are centrioles typically not found in human cells?

Nerve cells

What is the process by which genetic information encoded in DNA is copied onto a strand of RNA called messenger RNA (mRNA)?

Transcription

Which process involves the movement of water across a selectively permeable membrane from a solution with higher solute concentration to a solution with lower solute concentration?

Osmosis

What biological molecules determine the physical and chemical characteristics of cells?

Proteins

In protein synthesis, what is the process of reading mRNA nucleotide sequence to determine the amino acid sequence of a protein called?

Translation

Which type of diabetes occurs when T cells attack and destroy most of the beta cells in the pancreas that are needed to produce insulin?

Type 1 diabetes

Which type of diffusion involves the movement of molecules through the lipid proteins of the membrane, for example, fatty acids and steroids?

Simple diffusion

Test your knowledge on the structure and composition of the plasma membrane, including its lipid bilayer and the functions of the membrane in cellular organization. This quiz also covers the definition and characteristics of sex cells and somatic cells.

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