The nucleus houses the genetic info of a cell. :)
Answer:
B. The membrane lets certain substances move across it freely, while others must move through a “gate”.
Explanation:
Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. This is important for the cell to maintain its internal order irrespective of the changes to the environment. For example, water, ions, glucose and carbon dioxide may need to be imported or exported from the cell depending on its metabolic activity. Similarly, signaling molecules may need to enter the cell and proteins may need to be released into the extracellular matrix. The presence of a selectively permeable membrane allows the cell to exercise control over the quantum, timing and rate of movement of these molecules.
Answer:
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Explanation:
Answer:
meditation
Explanation:
The relaxation response technique is a stress reduction technique that combines elements of relaxation and meditation. This was a technique made by Dr. Herbert Benson as a treatment for a wide range of stress-related disorders. Parts of the technique include sitting comfortably with eyes closed while doing a series of breathing exercises. Which are also methods used in meditation.
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It is now a new chemical reaction and has different properties now.