Polymerase is the enzyme that moves along the leading strand of a growing new strand of DNA to assemble new nucleotides.
<h3>Describe an enzyme:</h3>
A material created by a living thing that functions as a catalyst to trigger a certain biological reaction.
<h3>Enzyme example: </h3>
Amylase: Amylase aids in the conversion of carbohydrates to sugars in the saliva. The salivary enzyme maltose breaks down the sugar maltose into glucose. Trypsin In the small intestine, these enzymes convert proteins into amino acids.
<h3>Enzyme: A protein or not?</h3>
Enzyme-like proteins are composed of amino acids linked by one or more polypeptide chains. This configuration of amino acids is referred to as the basic structure of a polypeptide chain.
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Answer:
Parasites such as lice and fleas that live outside a host are called ectoparasites
Answer:
As the plasma membrane grows and accumulates more contents it will require more cell membrane to survive.
Explanation:
Plasma membrane is functionally significant layer that surrounds the cytoplasm of a cell.Plasma membrane performs many important cellular functions.For example transport of specific substance in and out of the cell,contain various protein that act as receptor,the oligosaccharide side chain of the glycoprotein moiety present within the plasma membrane recognizes various bio active compounds.
When a cell grow it increases in size beside increasing its cellular constituents.To surround or protect these cellular constituents more plasma membrane should be need by the cell for its survival.
Answer:
Thymus
Explanation:
T cells mature in the thymus
<span>The product of fertilization is a one-cell embryo with a diploid complement of chromosomes. Over the next few days, the mammalian embryo undergoes a series of cell divisions, ultimately leading to formation of a hollow sphere of cells known as a blastocyst. At some point between fertilization and blastocyst formation, the embryo moves out of the oviduct, into the lumen of the uterus.The images below demonstrate major transitions in structure during early embryogenesis in cattle. Note that in all of the the early stages, the embryo is encased in its zona pellucida. Embryos from other mammals have a very similar appearance, and the general sequence of stages is seen in all mammals.
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