Answer:
The correct answer is option b. "Glucose is a highly reduced compound, containing many carbon-hydrogen bonds and a lot of potential energy".
Explanation:
Glucose is the preferred source of energy for many microorganisms, including most bacteria. The reason behind this adaptation is that glucose is a highly reduced compound, containing many carbon-hydrogen bonds and a lot of potential energy. Reduction of glucose is achieved through different metabolic pathways using enzymes as aldehyde reductase, and its carbon-hydrogen bonds breakdown releases a lot of potential energy. These two properties makes glucose a good source of energy for the cells.
Glucose is used by plants for energy and to make other substances like cellulose and starch.
The best answer is B.
Each year many tundra plants retain their dead leaves rather than shed them. The dead leaves insulate fragile new buds from the wind and cold. Grass tussocks are a good example of this.
Many tundra plants also wear adaptive coats which are furry and waxy coatings on their leaves and stems. Fine hair or fuzz slows the wind, thus reducing drying and preserving heat.
The waxy coating of many plants also help reduce water loss and evaporative cooling by the wind