Warm air mass advances on a cold air mass, causing rain.
Answer:
C. CALVIN CYCLE(LIGHT INDEPENDENT REACTIONS OF PHOTOSYNTHESIS.
Explanation:
Photosynthesis is the process whereby green plants manufacture their food (organic matters in form of glucose) from carbon IV oxide and water molecules in the presence of sunlight.
The glucose formed undergoes two purposes; provision of energy and in the fixing of carbon.
This process involved two steps : The light dependent process and the light independent (Calvin cycle).
The light dependent reaction takes place in the thylakoid membrane and requires supply of light energy.
ATP and NADPH are formed, water molecules are also formed.
The light independent reaction occurs in the stoma and does not require light energy. The process used the ATP and NADPH formed from the light dependent reaction to fix carbon and produce three carbon sugars.
So the Calvin cycle light independent reaction is involved in the fixing of carbon molecules into organic molecules in the absence of sunlight and the ATP and NADPH formed from the light dependent process of photosynthesis.
Answer:
The type of vesicular transport involved in the exporting of protein-based hormones, such as insulin, into the bloodstream is regulated exocytosis.
Explanation:
In general terms, exocytosis is a type of active transport that allows intracellular substances are released to the extracellular space, through of vesicles that fuse with the plasma membrane, which allow the exit of substances from inside the cell.
Regulated exocytosis is the specific vesicular transport for the secretion of substances, such as hormones. For this type of transport to exist, the presence of an extracellular signal is required, which will activate the fusion of the vesicles.
In the case of insulin, the external signal originates with the increase in blood glucose levels, a signal that penetrates the intracellular space and generates an increase in insulin production in the islets of Langerhans (pancreas).
Before insulin secretion occurs, the cell must be depolarized, allowing calcium to enter, which promotes transport by regulated exocytosis of insulin to the extracellular space.
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Answer:
The function of carotenoids in plant is the dissipation of excess light energy.
Explanation:
Carotenoids are a group of chemicals that are found in food, the chemicals possess antioxidant properties, which help the cell to get rid of radical species. Carotenoids are also presents in plants. In plants, carotenoids help the plants to absorb energy from sunlight to carry out photosynthesis. They also protect chlorophyll in plants from been damaged by the sun.
