Ca2+-ATPases are integral membrane proteins. They are active transport mechanisms that use the energy derived from ATP hydrolysis to pump calcium ions across the membrane. A specific form of Ca2+-ATPase, ERCA, is located on the endoplasmic reticulum membrane. In which direction does ERCA transport calcium ions? a.) ERCA transports calcium ions from the lumen of the endoplasmic reticulum into the cytoplasm. b.) ERCA transports calcium ions from the cytoplasm into the lumen of the endoplasmic reticulum.
Ca2+-ATPases are integral membrane proteins. They are active transport mechanisms that use the energy derived from ATP hydrolysis to pump calcium ions across the membrane. A specific form of Ca2+-ATPase, ERCA, is located on the endoplasmic reticulum membrane. In which direction does ERCA transport calcium ions? a.) ERCA transports calcium ions from the lumen of the endoplasmic reticulum into the cytoplasm. b.) ERCA transports calcium ions from the cytoplasm into the lumen of the endoplasmic reticulum.
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter9: Cell Communication
Section: Chapter Questions
Problem 3ITD
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Ca2+-ATPases are integral membrane proteins. They are active transport mechanisms that use the energy derived from ATP hydrolysis to pump calcium ions across the membrane. A specific form of Ca2+-ATPase, ERCA, is located on the endoplasmic reticulum membrane. In which direction does ERCA transport calcium ions?
a.) ERCA transports calcium ions from the lumen of the endoplasmic reticulum into the cytoplasm.
b.) ERCA transports calcium ions from the cytoplasm into the lumen of the endoplasmic reticulum.
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