Answer:
Option A
Explanation:
The rate and amount of decomposition of alcohol depends on the amount of body fat in an individual. The activity of enzyme alcohol dehydrogenase that breaks down alcohol is affected by concentration of body fat and water.
The higher the body fat and the lower is the body water and fluid, the higher is the activity of enzyme alcohol dehydrogenase.
Thus, the higher activity of enzyme alcohol dehydrogenase ensures higher rate of breakdown of alcohol due to which level of alcohol concentration in blood of an individual reduces.
Hence, option A is correct
False. Oxygen is absorbed in the alveoli sacs of the lungs.
Upon inhalation Air must first pass through the larynx and down to the trachea, which then splits off into two separate bronchial tubes, the bronchial tubes divide into smaller air passages known as the bronchi and those into even smaller bronchioles. The bronchioles end in tiny sacs called the alveoli which transfer the oxygen from the inhaled air to the bloodstream.
Answer: Option C.
High-energy waves like UV light or radiation physically damage the DNA
Explanation:
Mutation is the change or alteration that occur in the DNA sequence or nucleotides sequence of an organism which is caused by mistakes when the organism is copied or environmental factors such as UV light.
Ultraviolet light cause mutations by activating the SOS repair systemof which is a part of i a new DNA polymerase that has no power to edit e but has the ability to move past the thymine dimer and synthesize DNA, This lead to cells able to replicate but with a high frequency of mutations.
