Which of the following statements is true during active transport
Which of the following is an example of active transport in a cell?
Two solutions are separated by a selectively permeable membrane. This membrane allows water to pass through, but sucrose (a disaccharide) and glucose (a monosaccharide) cannot. A 0.2-molar sucrose solution and a 0.2-molar glucose solution are separated by the membrane. How will the solutions evolve over time? ()
A red blood cell’s solute concentration is around 2%, but red blood cells contain almost no sucrose or urea. Water and urea can move through the membrane, but not sucrose. When immersed in which of the following remedies, osmosis causes red blood cells to shrink the most? ()
ATP or a concentration gradient of a second solute may provide energy for active transport of a solute up its gradient. This second solute gradient retains no net voltage difference across the membrane.
When the concentration of glucose within the cell is higher than the concentration of glucose outside the cell, glucose can be transported into the cell through an active transport mechanism. This active transport mechanism simultaneously transports glucose and sodium into the cell. The glucose goes up the gradient, while the sodium moves down. Which of the following claims about this process is true? ()
What process would allow calcium to continue to enter the root cells?
A) Plant cells have centrioles, which are absent in almost all animal cells… Which of the following claims about photosynthesis is false? What of the following statements is true: ‘The plasma membrane does not need a carrier molecule in which form of transport?’ Which of the following statements is right in which method?’ Which of the following statements is correct?
Which of the following statements about transmembrane proteins in the lipid bilayer of plasma membranes is correct? Which of the following does not involve a carrier molecule during transport across cell membranes? W… Which of the following ions is needed for microtubule assembly? Which of the following ions… The aim of the Na+-K+ pump is to enable… [ Odisha State, 2009 ]
Statement X: During stomatal opening, the majority of… Which of the following accumulates in the vacuoles of guard cells…
[… lipid-like steroidal hormones are synthesized in animal cells…… MPPMT 2010 [ MPPMT 2010 ]
Which way do particles move during active transport?
Which of the following statements accurately describes the cell walls of particular bacteria? The thin layer of peptidoglycan in gram negative bacteria is surrounded by an external membrane consisting of phospholipids (LPS) and proteins.
Which of the following statements is true about the structure of the plasma membrane? The plasma membrane is a bilayer of phospholipids with hydrophilic groups directed toward the cell’s inside and outside.
pg. 96 pg. 96 pg. 96 1.The spore septum isolates freshly replicated DNA and a small amount of cytoplasm. 2. The plasma membrane begins to encircle DNA. 3. The spore septum forms a forespore around the isolated part. 4. Between the membranes, a peptidoglycan layer forms. spore coat f spore coat f spore coat f spore
What is true about the nucleus of an atom
Active transport is the passage of molecules through a cell membrane toward a concentration gradient from a region of lower concentration to a region of higher concentration. To accomplish this movement, active transport necessitates the use of cellular resources. Primary active transport, which uses adenosine triphosphate (ATP), and secondary active transport, which uses an electrochemical gradient, are the two forms of active transport.
Active transport uses cellular energy to transfer molecules toward a gradient, polar repulsion, or other resistance, as opposed to passive transport, which uses the kinetic energy and natural entropy of molecules traveling down a gradient. The accumulation of high concentrations of molecules that the cell requires, such as ions, glucose, and amino acids, is normally associated with active transport. The uptake of glucose in the intestines of humans and the uptake of mineral ions into root hair cells of plants are also examples of active transport. 1st
Sodium glucose cotransporters are one form of cotransporter that has received a lot of attention in diabetes research. Scientists at the National Health Institute discovered these transporters.  These researchers had found a difference in glucose absorption at various points in a rat’s kidney tubule. The gene for intestinal glucose transport protein was then discovered, and it was related to these membrane sodium glucose cotransport systems. SGLT1 was the first of these membrane transport proteins to be discovered, preceded by SGLT2.  Robert Krane was also a key figure in this area.