Answer:
all of these affect enzyme activity
Answer:
This process is called aerobic respiration because it requires air (oxygen). In the absence of oxygen, the cell uses a process called anaerobic fermentation. or simply fermentation. ... Because aerobic respiration breaks the sugar all the way down, it releases much more energy than fermentation.
Answer:
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time. Mutations can also occur as the result of exposure to environmental factors such as smoking, sunlight and radiation. Often cells can recognize any potentially mutation-causing damage and repair it before it becomes a fixed mutation.
Mutations contribute to genetic variation within species. Mutations can also be inherited, particularly if they have a positive effect. For example, the disorder sickle cell anaemia is caused by a mutation in the gene that instructs the building of a protein called hemoglobin. This causes the red blood cells to become an abnormal, rigid, sickle shape. However, in African populations, having this mutation also protects against malaria.
However, mutation can also disrupt normal gene activity and cause diseases, like cancer. Cancer is the most common human genetic disease; it is caused by mutations occurring in a number of growth-controlling genes. Sometimes faulty, cancer-causing genes can exist from birth, increasing a person’s chance of getting cancer.
Correct answer: C). Sunlight is converted to chemical energy
Sunlight is used in the process of photosynthesis by the plants to make glucose and six molecules of oxygen.
During the process of photosynthesis plants capture sunlight with the help of chlorophyll pigments which are present in their leaves. The light energy trap by plant is used to change water and carbon dioxide into the form of sugar called as glucose.
This glucose is used by the plants as a energy to make cellulose and starch . Cellulose is used as the building material for cell wall and starch is stored in seeds and other parts of the plant as a food source which is used by heterotrophs as a food source.
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