Which statement is true of facilitated diffusion it does not...

Which statement is true of facilitated diffusion? It does not require a carrier. It does not require energy. It is the same as simple diffusion. The transported substance must move from a region of higher concentration to a region of lower concentration. All of the following statements are true of active transport across membranes except: It has an intrinsic directionality. Energy is always required. Transport of one species is always coupled to that of another species. It requires a carrier, or "pump." All of the following are true of the sodium-potassium pump except: It is a symport. It is a protein. It uses the energy of ATP hydrolysis. It is an antiport. Lysosomes play a role in each of the following processes except: Programmed cellular self-destruction. Autophagy or recycling of cell components. The degradation of hydrogen peroxide. Digestion of material ingested by phagocytosis. The enzyme in peroxisomes responsible for the breakdown of hydrogen peroxide is called: Catalase. Peroxidase. Lipase. Pepsidase.

Transcript

00:01 I don't want to this question is talk about cell transport.

00:03 It says which statement is through a facilitated diffusion.

00:06 Remember that in facilitated diffusion, you're going to have your cell membrane, and you're going to move a substance down the concentration radiant.

00:13 It means from higher concentrations to lower concentrations.

00:16 But in case of facilitated diffusion, you're going to acquire protein transporters, for example, ion channels, okay? so this is like the only one very important point here, and also it is not going to require atp.

00:31 So let's look at the options.

00:33 Option a says it does not require a carrier.

00:36 This is false, okay, option a is false because it does require a carrier.

00:40 Then option b says it requires energy, this is also false because this is not going to require energy.

00:45 Option cises, it is the same as simple diffusion and it is also false because in simple diffusion you are going to both a substance down a concentration gradient.

00:53 Also you're not going to require atp, but you are not going to require a transporter approach.

00:58 Protein molecule here.

01:00 Then we have option d that says that transport substance must move from a region of higher concentrations to a region of lower concentrations.

01:08 It means down the concentration gradient and this is true and this is the answer for this question.

01:14 The next question is all of the following statements are true of active transfer across membranes except, so remember that about active transport, this is going to be your cell membrane and this is going to be a pump.

01:25 And this pump is going to move a substance up the...

01:28 Concentration variant.

01:29 It means from lower concentrations to fire concentration.

01:34 It's like the opposite to this type of diffusion here.

01:37 And also you're going to require here atp.

01:41 Okay, so option aces.

01:43 It has a okay, option aces, it has an intrinsic directionality and this is true, okay? this is true because an increasing directionality means that this active transport is going to move a substance only in this direction and not in that like from this constant, this place to this place...

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