When something needs to be transported against its concentration gradient, or a molecule is too big to simply diffuse through a membrane, active transport has to be used. So active transport requires energy (ATP).
Examples:
1. Antiport pumps: transport one substance in one direction while transporting another substance the other way. An example of this is the sodium-potassium pump.
2. Symport pumps - uses a substance that wants to move from an area of high concentration to low concentration and carries another substance against its concentration gradient. An example of this is the sodium-glucose transport protein
3. Endocytosis - large amounts of extra cellular fluid can be taken into a cell - needs ATP to bind proteins in the cell membrane and causes them to change their shape...which eventually causes the surrounding of the fluid to be brought in (a vesicle).
4.exocytosis - opposite of above
Hello!
It helps the Rabbit walk on top of the snow
Nope! The genome is the entire set of genetic material in an organism. The genome is made up of all the DNA inside an organism.
DNA Polymerases type of enzyme ensures that the correct base for growing the chain is aligned with the template chain.
<h3>What is DNA Polymerase?</h3>
- The family of enzymes that catalyze the synthesis of DNA molecules from nucleoside triphosphates, the basic building blocks of DNA, includes DNA polymerase.
- These enzymes, which are required for DNA replication, typically function in groups to divide an initial DNA duplex into two identical copies.
- DNA polymerase "reads" the pre existing DNA strands throughout this process to produce two new strands that are identical to the preexisting ones.
- Deoxyribonucleotides, the components of DNA, are synthesized by DNA polymerase as its primary purpose.
- The nucleotides and bases found on each strand of the original DNA molecule are paired to form the DNA copies.
- This coupling always occurs in certain pairings, with cytosine and guanine constituting one pair and thymine and adenine forming the other.
- RNA polymerases, on the other hand, create RNA from ribonucleotides that are either found in RNA or DNA.
Learn more about DNA polymerase here
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The answer is C. If you search it up it will show that the answer is c.
