Answer:
<em>The correct option is A) Organic molecules are common in food, and inorganic molecules are used in electronics.</em>
Explanation:
Organic compounds can be described as compounds which are made up of carbon. They might have carbon-carbon bonds or carbon binding to other compounds like hydrogen, oxygen, nitrogen etc.
The food made by plants is an organic compound in general. As all of the organisms depend on plants or animals that eat them for food, hence food comprises of an abundance of organic compounds.
Inorganic molecules can be described as molecules which are not made up of carbon. They might be metals or semiconductors being used in electronics.
Water is an example but not sure if it's what your looking for...
Pollen , coal and stems are evidences that plants existed in Antarctica.
Explanation:
- Pollens being highly resistant to temperature changes due to the presence of sporopollenin must have remained preserved in ice covered continent of Antarctica.
- Pollens are reproductive units of Plant that suggest existence of plants in the Ice covered land.
- Coal is formed as the fossilization of plants under anaeorobic conditions and high pressure. thus, this also suggest the existence of plants.
- Stems are plant parts thus clearly is an evidence that plants existed there.
Answer:
Many amino acids in an enzyme molecule carry a charge . Within the enzyme molecule, positively and negatively charged amino acids will attract. This contributes to the folding of the enzyme molecule, its shape, and the shape of the active site. Changing the pH will affect the charges on the amino acid molecules