Which of the following statements correctly describes a characteristic of active transport?Question 1Answera.Active transport involves the movement of molecules down their concentration gradient. b.Active transport moves molecules against their concentration gradient.c.Active transport is responsible for the passive diffusion of oxygen and carbon dioxide across the cell membrane.d.Active transport only occurs in prokaryotic cells and is absent in eukaryotic cells.
Question
Which of the following statements correctly describes a characteristic of active transport?Question 1Answera.Active transport involves the movement of molecules down their concentration gradient. b.Active transport moves molecules against their concentration gradient.c.Active transport is responsible for the passive diffusion of oxygen and carbon dioxide across the cell membrane.d.Active transport only occurs in prokaryotic cells and is absent in eukaryotic cells.
Solution
The correct statement that describes a characteristic of active transport is:
b. Active transport moves molecules against their concentration gradient.
Explanation: Active transport is a process that moves molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration. This is against the concentration gradient and requires energy, often in the form of ATP (Adenosine Triphosphate). This is different from passive transport, which moves molecules along their concentration gradient and does not require energy. Active transport is
Similar Questions
Active transport is the net (overall) movement of particles from an area of high concentration to an area of lower concentration.Question 13Answera.Trueb.False
Which of the following statements are true about passive transport in the eukaryotic cell? There are multiple answers and incorrect answers will lose marks.Question 8Answera.Passive transport is the movement of substances from high concentration towards an area of low concentration.b.Endocytosis is a form of passive transport.c.Passive transport does require ATP for energy.d.Passive transport does not require ATP for energy.e.Passive transport is the movement of substances from low concentration towards an area of high concentration.f.Diffusion is a type of passive transport
When comparing and contrasting facilitated diffusion and active transport, which statements are correct? Check all that apply.Check All That ApplyFacilitated diffusion does not involve membrane proteins; active transport does involve membrane proteins.Facilitated diffusion does not involve membrane proteins; active transport does involve membrane proteins.Facilitated diffusion does not require cellular energy; active transport does require cellular energy.Facilitated diffusion does not require cellular energy; active transport does require cellular energy.Facilitated diffusion moves substances along their concentration gradients; active transport usually moves substances against their concentration gradient.Facilitated diffusion moves substances along their concentration gradients; active transport usually moves substances against their concentration gradient.Facilitated diffusion moves substances into the cell; active transport moves substances out of the cell
Which statement best describes active transport across the plasma membrane?Movement of molecules from an area of higher concentration to an area of lower concentration, requiring energyMovement of molecules from an area of lower concentration to an area of higher concentration, requiring energyMovement of molecules from an area of higher concentration to an area of lower concentration, not requiring energyMovement of molecules from an area of lower concentration to an area of higher concentration, not requiring energy
Select the types of active transport in the eukaryotic cell from the list below.Question 7Answera.Osmosisb.Pinocytosisc.Exocytosisd.Receptor-mediated endocytosise.Phagocytosisf.Diffusion
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.