Q. Give examples of active transport systems.

Q. Give examples of active transport systems.
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1 Answer

Answer :

A. Sodium pump, calcium pump
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Related questions

There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s) is/are true concerning energy converting transport? a. The site of energy conversion and transport in the plasma membrane involves the phospholipid component b. The Na+-K++-ATPase derives energy from hydrolysis of extracellular ATP c. In some systems, energy inherent in the transmembrane ion gradient can be used to drive transport of a second species d. Examples of species transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose

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Last Answer : Answer: c, d The selectivity of the plasma membrane, although impressive, cannot account for the nonequilibrium composition of living cells. A cell can be maintained in a nonequilibrium state only by ... to drive the transport of a second species such as protons, calcium, amino acids, or glucose

Q. What are the salient features of active transport?

Description : Q. What are the salient features of active transport?

Last Answer : A. It requires transporters. It requires energy. Transport is generally unidirectional

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Description : Q. Can you give an example of facilitated transport?

Last Answer : A. Glucose transporters

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Description : Q. Give some examples of ion channels.

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The third active process for amino acids transport involves (A) Acidic amino acids (B) Basic amino acids (C) Neutral amino acids (D) Sulphur containing amino acids

Description : The third active process for amino acids transport involves (A) Acidic amino acids (B) Basic amino acids (C) Neutral amino acids (D) Sulphur containing amino acids

Last Answer : Answer : C

The transport of amino acids regulated by active processes of different numbers: (A) 1 (B) 2 (C) 3 (D) 4

Description : The transport of amino acids regulated by active processes of different numbers: (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : Answer : C

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Description : Active transport of sugar is depressed by the agent: (A) Oxaloacetate (B) Fumarate (C) Malonate (D) Succinate

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Description : Q. What are the different types of transport mechanisms?

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What is the difference between active and passive transport?

Description : What is the difference between active and passive transport?

Last Answer : A: Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and involves the movement of substances down their concentration gradient.

What is the difference between a passive and active transport?

Description : What is the difference between a passive and active transport?

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What do the processes of active transport and facilitated process have in common?

Description : What do the processes of active transport and facilitated process have in common?

Last Answer : answer:Billy. Did you mean to tag this with “cell phones” or are you asking about cells? Also, is there another term for “facilitated process”? Might you be referring to “facilitated diffusion”?

What is the difference between active and passive transport? -Biology

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Description : What is active transport in cells? -Biology

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Explain active transport of substances across cell membranes. -Biology

Description : Explain active transport of substances across cell membranes. -Biology

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Define active transport. -Biology

Description : Define active transport. -Biology

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Link between active transport and respiration? -Biology

Description : Link between active transport and respiration? -Biology

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Theories of active transport of mineral salts. -Biology

Description : Theories of active transport of mineral salts. -Biology

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To perform active transport, cells use?

Description : To perform active transport, cells use?

Last Answer : atp and transport proteins. novanet.

The high osmolarity of the renal medulla is maintained by all of the following except (i) Active transport of salt from the upper region of the ascend

Description : The high osmolarity of the renal medulla is maintained by all of the following except (i) Active transport of salt from the upper region of the ascend

Last Answer : The high osmolarity of the renal medulla is maintained by all of the following except (i) Active transport of salt ... v C. ii and iii D. iv and v

How is facilitated diffusion similar to active transport How is it different?

Description : How is facilitated diffusion similar to active transport How is it different?

Last Answer : Need answer

What organelle produces the energy required in active transport?

Description : What organelle produces the energy required in active transport?

Last Answer : Mithocondria

In situations the cell use active transport?

Description : In situations the cell use active transport?

Last Answer : What is the answer ?

Oxygen diffuses through this structure, but a sodium ion may need active transport. Which structure is this statement most likely referring to?

Description : Oxygen diffuses through this structure, but a sodium ion may need active transport. Which structure is this statement most likely referring to?

Last Answer : A semipermeable membrane (APEX)

Which are the molecules that make possible active transport through membranes ?

Description : Which are the molecules that make possible active transport through membranes ?

Last Answer : Active transport is made by specific membrane proteins. These proteins are called “pumps” because they “pump” the moving substance through the membrane using energy from ATP molecules.

What do facilitated diffusion and active transport have in common ?

Description : What do facilitated diffusion and active transport have in common ?

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What is the energy source used in active transport through biological membranes ?

Description : What is the energy source used in active transport through biological membranes ?

Last Answer : The energy necessary for active transport (against the concentration gradient of the transported substance) to occur comes from ATP molecules. The active transportation uses chemical energy from ATP.

What is the relation between concentration gradient and active and passive transport ?

Description : What is the relation between concentration gradient and active and passive transport ?

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How active transport is different from Diffusion?

Description : How active transport is different from Diffusion?

Last Answer : In active transport movement of substances and materials take place against the concentration gradient i.e. from lower to higher concentration. While in Diffusion molecules move from higher to lower concentration.  

.E.coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because (a) the lac operon is constitutively active in these cells (b) they cannot synthesise functional beta galactosidase (c) in the presence of glucose, E.coli cells do not utilise lactose (d) they cannot transport lactose from the medium into the cell.

Description : .E.coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because (a) the lac operon is constitutively active in these cells ( ... coli cells do not utilise lactose (d) they cannot transport lactose from the medium into the cell.

Last Answer : (b) they cannot synthesise functional beta galactosidase

The primary force moving water molecules from the blood plasma to the interstitial fluid is a. active transport b. cotransport with H+ c. facilitated diffusion d. cotransport with Na+ e. filtration

Description : The primary force moving water molecules from the blood plasma to the interstitial fluid is a. active transport b. cotransport with H+ c. facilitated diffusion d. cotransport with Na+ e. filtration

Last Answer : filtration

Sugars depend on which mechanism to enter the cell a. facilitated diffusion b. active transport c. both d. none of them

Description : Sugars depend on which mechanism to enter the cell a. facilitated diffusion b. active transport c. both d. none of them

Last Answer : facilitated diffusion

Which transmembrane movement involves carriers? a. facilitated diffusion b. active transport c. both d. none of them

Description : Which transmembrane movement involves carriers? a. facilitated diffusion b. active transport c. both d. none of them

Last Answer : both

The process by which cell can take in fluid and molecules too large to be carried across the plasma membrane by active transport is called a. phagocytosis b. Pinocytosis c. absorption d. diffusion

Description : The process by which cell can take in fluid and molecules too large to be carried across the plasma membrane by active transport is called a. phagocytosis b. Pinocytosis c. absorption d. diffusion

Last Answer : Pinocytosis

Following processes can occur across the cell membrane at the same time. a. Osmosis b. Active transport c. Both d. None of them

Description : Following processes can occur across the cell membrane at the same time. a. Osmosis b. Active transport c. Both d. None of them

Last Answer : Both

Glucose is taken back from glomerular filtrate through (a) active transport (b) passive transport (c) osmosis (d) diffusion

Description : Glucose is taken back from glomerular filtrate through (a) active transport (b) passive transport (c) osmosis (d) diffusion

Last Answer : (a) active transport

The exchange of gases in the alveoli of the lungs takes place by (a) passive transport (b) active transport (c) osmosis (d) simple diffusion.

Description : The exchange of gases in the alveoli of the lungs takes place by (a) passive transport (b) active transport (c) osmosis (d) simple diffusion.

Last Answer : d) simple diffusion.