18 Questions
What is the main function of the cytoskeleton in plant cells?
Cell division and movement
What is the primary function of the lysosome?
Detoxification and breakdown of fatty acids
What is the site of protein synthesis and modification?
Endoplasmic reticulum
What is the primary function of peroxisomes?
Detoxification and breakdown of fatty acids
What is the function of the chloroplast?
Photosynthesis
What is the function of the Golgi apparatus?
Sorting and processing of secreted and lysosomal proteins
What is the primary source of energy for secondary active transport?
Ion gradients generated by primary active transport
What type of cotransporter moves substances in the same direction across the plasma membrane?
Symporter
Where does the synthesis of lipids occur in the cell?
Endoplasmic reticulum
What is the function of the nuclear envelope pores?
To regulate the movement of molecules in and out of the nucleus
What is the site of protein synthesis in the cell?
Ribosome
What is the function of the Golgi apparatus in protein synthesis?
To modify and package proteins
What is the primary function of ion channels in facilitated diffusion?
To facilitate the movement of specific ions into or out of the cells
What is required for the transport of glucose by a specific transporter?
The binding of the transporter to glucose with a certain affinity
What is the characteristic of primary active transport proteins?
They require the hydrolysis of ATP
What is the role of Aquaporins in cellular transport?
To facilitate the transport of water into and out of cells
What is the characteristic of transport proteins that function in secondary active transport?
They do not possess ATPase activity
What is the function of P-class ATPases in primary active transport?
To move ions against their concentrations
Learn about facilitated diffusion, ion channels, transport proteins, and pumps that facilitate the movement of ions and molecules across cell membranes. Understand how these transmembrane proteins bind to substances and catalyze movement across the membrane.
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