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3 years ago

This is a process by which substances are transported across cell membranes by means of protein carrier molecules.

Biology

2 answers:

svlad2 [7]3 years ago

4 0

Answer:

Facilitate diffusion is the process in which substances are transported across the plasma membrane along the concentration gradient with the help of carrier molecules.

In active transport also carrier proteins are used but they are used to transport the molecules against the concentration gradient.

Carrier proteins bind the molecules to be transported non-covalently and after binding, it undergoes a conformational change which helps in the movement of the molecule through the protein inside the cytoplasm of the cell.

Charged and polar molecules are mainly passed through facilitated diffusion like amino acids, carbohydrates, ions. The rate of transfer of molecules across the plasma membrane is higher in facilitated diffusion than simple diffusion.

patriot [66]3 years ago

3 0

This should be "(primary) active transport", transportation that requires ATP energy (and possibly carriers).

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tekilochka [14]

All of the organisms on earth together with their physical environment comprise the ecosystem.

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1 year ago

What do I need to know about understanding what is happening to people with dmd

fomenos

Answer:

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3 years ago

Neurotransmitters Select one: a. stimulate presynaptic terminals. b. remain in the synaptic cleft for long periods of time. c. b

Nonamiya [84]

Details about Neurotransmitters are described below.

Explanation:

1.Neurotransmitters are referred to as the body’s chemical messengers. They are the molecules used by the nervous system to transmit messages between neurons, or from neurons to muscles.

2.Terms in this set

acetylcholine. A neurotransmitter used by neurons in the PNS and CNS in the control of functions ranging from muscle contraction and heart rate to digestion and memory.
norepinephrine.
serotonin.
dopamine.
GABA.
glutamate.
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3.Neurotransmitters are made of the following :

The amino acid neurotransmitters glutamate, GABA (γ-aminobutyric acid), and glycine. All of these are amino acids, though GABA is not an amino acid that's found in proteins. ...
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3 years ago

In what way is the genetic code in all organisms the same?

mojhsa [17]

Answer:

All organisms have the same nucleotides

Explanation:

All organisms have DNA. DNA is made up of the nucleotides Guanine, Adenine, Thymine, and Cytosine, with Guanine pairing with Adenine, and Thymine pairing with Cytosine. The combinations of pairs in a sequence determine an organism's individual genes.

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2 years ago

Pepsinogen is produced by __________ and is activated by __________

Ket [755]

Answer:

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3 years ago

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