<span>Enzyme and substrate bind using a lock-and-key mechanism. </span>
Answer:
D. mRNA.
Explanation:
Polyadenylation is defined as the addition of poly (A) to messenger RNA. This tail is made up of several adenosine monophosphates (adenine bases). In eukaryotes, polyadenylation is part of the process in which messenger RNA is formed for subsequent translation. Therefore, it is part of the process of gene expression.
The correct answer is: A. The hydrophilic head groups of the lipid molecules are exposed to the outside of the cell and the cytoplasm, which is a water-like environment. The hydrophobic tails form an oily layer inside the membrane that keeps water out of the cell.
Plasma membrane of the cell is arranged in a bilayer of phospholipids. Phospholipids are amphipathic molecules which means that they have both hydrophilic and hydrophobic regions. The hydrophilic heads of phospholipids that are faced outward and hydrophobic layer located in the interior of the bilayer together make a good barrier between the interior and exterior of the cell, so the water and other polar or charged substances cannot easily cross the hydrophobic core of the membrane.
Answer:
13 and 56 and 838 and 393 and 82 and 8
Explanation:
because it a potion answer and it has to be the best like mrbest ok guys am so
The bone-forming cells that produce collagen and proteoglycans and release matrix vesicles are called <u>Osteoblasts</u>
<h3>What is skeletal system?</h3>
They are part of the skeletal system. The skeletal system is made up of bones, ligaments, cartilages and tendons. There are 206 bones in the human body.
Learn more about bones:
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