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| Metal ion transport refers to the movement of metal ions across biological membranes or through aqueous solutions. This process is crucial for various biological functions and cellular processes. Metal ions are essential for enzyme activity, signal transduction, and maintaining cellular homeostasis.
In biological systems, metal ion transport occurs through specialized proteins such as ion channels, transporters, and pumps. These proteins facilitate the movement of metal ions across cell membranes, ensuring their delivery to specific cellular compartments or their removal from cells as needed. The transport of metal ions is tightly regulated to prevent toxic accumulation or deficiency, which could disrupt cellular function. Understanding metal ion transport involves studying the mechanisms by which these ions are recognized, bound, and transported across membranes. Various factors, including pH, concentration gradients, and the presence of chelating agents, influence metal ion transport processes. |
Metal Ion Transport Online Quiz
By presenting 3 options to choose from, Metal Ion Transport Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Metal Ion Transport Questions and Answers and click over the correct answer.
- Test Name: Metal Ion Transport MCQ Quiz Practice
- Type: Quiz Test
- Total Questions: 40
- Total Marks: 40
- Time: 40 minutes
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Metal Ion Transport Flashcards
Which ion transporter is responsible for the transport of calcium ions out of the cell?
Calcium pump
Which metal ion is primarily transported by the ATP-binding cassette (ABC) transporters in bacteria?
Zinc
What is the main function of metal ion transporters in biological systems?
Maintain metal ion homeostasis
Which metal ion transporter is involved in the absorption of dietary iron in the small intestine?
Divalent metal transporter 1 (DMT1)
Which type of transporter is responsible for the transport of metal ions across the mitochondrial membrane?
Mitoferrin
What is the term for the transport of metal ions across biological membranes driven by a concentration gradient?
Passive transport
What is the term for the transport of metal ions against their concentration gradient using energy from ATP?
Active transport
Which metal ion transporter is responsible for the transport of zinc ions into synaptic vesicles?
ZnT3
What is the term for the family of metal ion transporters that utilize ATP hydrolysis to transport metal ions across membranes?
P-type ATPases
What is the term for the transport of metal ions through protein channels in the cell membrane?
Ion channel
Which metal ion transporter is responsible for the transport of manganese ions across the blood-brain barrier?
SLC30A10
What is the term for the transport of metal ions through carrier proteins in the cell membrane?
Facilitated diffusion
Which metal ion transporter is responsible for the transport of iron ions across the blood-brain barrier?
Ferroportin
What is the term for the process of engulfing extracellular material into vesicles for transport into the cell?
Endocytosis
Which metal ion transporter is responsible for the export of iron ions from cells into the bloodstream?
Ferroportin
What is the term for the movement of metal ions across biological membranes driven by a concentration gradient and carrier proteins?
Facilitated diffusion
Which metal ion transporter is responsible for the transport of copper ions across the blood-brain barrier?
CTR1
What is the term for the process of releasing intracellular material from vesicles into the extracellular space?
Exocytosis
What is the term for the family of metal ion transporters that use ATP hydrolysis to pump metal ions out of the cell?
ABC transporters
What is the term for the selective uptake of specific molecules into cells through vesicle formation?
Endocytosis
Which metal ion transporter is involved in the transport of zinc ions from the cytoplasm into the Golgi apparatus?
ZnT2
What is the term for the transport of metal ions across membranes without the input of energy?
Passive transport
What is the term for the process by which metal ions are transported across biological membranes by binding to specific carrier proteins?
Ionophores
Which metal ion transporter is responsible for the transport of copper ions into the Golgi apparatus?
ATP7B
What is the primary function of metal ion transporters in the human body?
Maintain metal ion homeostasis
Which metal ion transporter is involved in the transport of zinc ions out of synaptic vesicles?
ZnT3
What is the term for the proteins that bind to metal ions and facilitate their transport across biological membranes?
Metallochaperones
Which metal ion transporter is responsible for the transport of iron ions from the bloodstream into cells?
Transferrin receptor
What is the term for the transport of metal ions across biological membranes driven by a concentration gradient and carrier proteins?
Facilitated diffusion
What is the term for the process by which metal ions are transported across biological membranes against their concentration gradient using energy from ATP?
Active transport
Which metal ion transporter is responsible for the transport of calcium ions into the endoplasmic reticulum?
SERCA
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