Membranes And Transport worksheets
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Active transport is movement of particles through the cell membrane from a region of ...1... to a region of ...2... using energy in the form of ...3...
1: lower concentration, 2: higher concentration, 3: NADPH
1: higher concentration, 2: lower concentration, 3: NADPH
1: higher concentration, 2: lower concentration, 3: ATP
1: lower concentration, 2: higher concentration, 3: ATP
Which one is the definition of active transport?
movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.
passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane
net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient
net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient
Which is an accurate description of the diagram below?
Na+ and Amino Acids are both transporting passively.
Na+ and Amino Acids are both transporting actively.
Na+ is diffusing passively, and Amino Acids are transporting actively.
Na+ is transporting actively, and Amino Acids are diffusing passively.
What might happen if a cell did not have any ATP/energy?
It would not have enough energy to do active transport
It's cell membrane would break
The transport proteins would not be needed.
Special transport proteins in the cell membrane carry out active transport. How are molecules transported through the protein pumps?
The molecules are sucked in automatically through the transport proteins.
The transport proteins change shape to push the molecules through the membrane of the cell.
The protein pumps have characteristics which attract molecules from the outside of the cell.
They just naturally occur without any efforts.
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