Active transport of solutes across a membrane ____ energy input, and ____ need the involvement of membrane proteins. It transports solute _______ its electrochemical gradient. (1): needs/ (2): does not need; (3): does/(4): does not; (5): following/(6) against
A)2, 3, and 5
B)2, 3, and 6
C)1, 3, and 5
D)1, 3, and 6
E)1, 4, and 6
active transport requires energy input proteins in the plasma membrane helps in the transport of molecules against the concentration gradient with the input of energy is called active transport.
Active transport of solutes across a membrane needs (1) energy input and does (3) need the involvement of membrane proteins. It transports solute against (6) its electrochemical gradient
so the answer is D) 1,3and 6
Active transport of solutes across a membrane ____ energy input, and ____ need the involvement of...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
A correct distinction between facilitated diffusion and active transport of a substance across a biological membrane is that . . . A. active transport requires conformational changes in the transport protein associated with the transport process, and facillitated diffusion does not. B. active transport requires integral membrane protein to carry out the transport, and facillitated diffusion does not. C. facilitated diffusion depends on an existing energy gradient acting on the transported substance, while active transport makes such a gradient. D....
1a) Which of the following statement is not true for active transport? A Na+/K+ pump is a form of primary active transport B Requires ATP C transports solutes against their concentration gradient D glucose transporters (GLU transporters) use active transport to transport glucose across the membrane E Na+/glucose co-transport is an example of secondary active transport 1b) Which of the following statement is not true for intracellular and extracellular fluids? A Solute composition of the interstitial fluid is similar to...
Lo 10: Electrochemical Gradient The difference in voltage across the membrane is called the __________________________________. The inside of a normal cell is ___________________ (+/-); while the outside is ___________(+/-). The resting membrane potential of a neuron is ___________mV. Diagram the relative ratios of Ca++, Na+ and K+ in a cell under resting conditions. Draw an arrow for each of the molecules indicating which direction would be passive transport (into or out of the cell). For each of the following sentences, fill in...
Pre-Lecture Quiz, Chapter 7, Introduction to Cell Physiology True/False . Active transport requires energy to move substances against the concentration gradient. 2. The cell membrane contains all of the genetic material necessary for cell reproduction. The mitochondria produce energy in the form ATP. Passive transport can occur across any semipermeable membrane and does not 3. 4. require energy 5. An isotonic solution contains the same concentration of solutes as human plasma Fill in the Blank 1. The is the basic...
From the following list of properties, indicate which one(s) can be used to distinguish between each of the following pairs of transport mechanisms. Transport Mechanisms: A. Simple diffusion; facilitated diffusion B. Facilitated diffusion; active transport C. Simple diffusion; active transport D. Symport; antiport E. Uniport; coupled transport Properties: 1. Directions in which two transported solutes move 2. Direction the solute moves relative to its concentration gradient or its electrochemical potential 3. Kinetics of solute transport (rate and ability to move)...
Question 35 2 pts Energy is indirectly used to co-transport hydrogen ions and glucose sugar across the cell membrane, against the concentration gradient of the glucose. This scenario describes facilitated diffusion. secondary active transport. simple diffusion. primary active transport. - Previous Next →
Membrane Transport 1. What is the difference between a carrier and a channel? 2. What are the two ways energy can be coupled to active transporters? 3. What are the driving forces behind solute transport? Consider charged and uncharged solutes separately.
4. Create some drawings/models of membrane transport proteins. Blob models are fine but they should be annotated as instructed below. In your drawing include a model for a lipid bilayer clearly showing the polar and non-polar nature of the lipid components. The models of the proteins should include annotation/shading or other indication that indicates the types of amino acid functional groups you might expect to see in (a) the exterior of the protein in contact with the lipid bilayer, (b)...
Active transport requires and in order to function correctly. • A. nucleic acids, membrane proteins e B. energy, peripheral proteins C. energy, membrane pxoteins D. energy, nucleic acids Which of the following is not a Eukaryote? A. Oak tree B. Bacteria C. Human D. Mushroom A neuron has many short thin fibers called and a single long • A. Dendrites, Axon B. Receptors, Nerve fiber C. Axons, Dendrite D. Myelin sheaths, Cell body • Bacteria can be described as: I....