Answer:
The enzyme’s active site binds to the substrate. Since enzymes are proteins, this site is composed of a unique combination of amino acid residues (side chains or R groups). Each amino acid residue can be large or small; weakly acidic or basic; hydrophilic or hydrophobic; and positively-charged.
Explanation:
A because none of the others would work
I would look for
- Signs of respiratory distress or irregular sounds coming from the respiratory system (coughing, sneezing,wheezing,etc)
- Skin color, redness or other clue on the surface of the patient's skin.
- Signs of dizziness, lack of awareness, drowsiness, and the general way the patient appears. Do they appear sick, do they appear depressed, anxious, etc.
<em>Hope this helps!</em>
HIV crossed from chimps to humans in the 1920's in what is now the Democratic Republic of Congo. This was probably as a result of chimps carrying the Simian Immunodeficiency Virus (SIV), a virus closely related to HIV, being hunted and eaten by people living in the area.
The my plate can guide you to a healthy diet.