Lactose metabolism is regulated by lac operon in prokaryotic cells. When in the environment lactose is present, the cell signals the presence of lactose and synthesizes the enzyme required for the degradation of lactose. Removal of lactose from the environment leads to the termination of the enzyme synthesis. Thus, the metabolism of lactose is environment dependent.
The metabolism of lactose is also dependent on the presence of glucose. Glucose is the favorite food for bacteria. If glucose and lactose both are present in the environment, the bacterial cells prefer glucose over lactose and lactose is not metabolized. In the absence of glucose, the cells will metabolize lactose.
The chance that a human child will be born male is 50%
Answer:
Clouds regulate the flow of radiant energy into and out of Earth's climate system
Explanation:
Consciousness is defined as the state of awareness of self and the environment. Another way of describing it is a condition for which a person is capable of perceiving stimuli from the environment and responding appropriately.
The consciousness system has two principal functions:
1) Maintenance of waking state (arousal or level of consciousness)
2) Content of experience (awareness or content of consciousness)
It is important to understand the difference between these two. Arousal shows the wakefulness of one person and awareness is the person ability to perceive the environment. In vegetative state, ones are awake but unaware of themselves or the environment.
In this article, we will look into the concept of neuronal system involved in consciousness system. It is crucial to realize that detail discussion is beyond the scope of this article and only essential and relevant elements to the
Answer:
Amino acids may be acidic amino acids, or basic amino acids, due to the R group on the amino acids. If the pH is increased, this affects the shape of proteins, by disrupting the bonds in the protein. In the case of fermentation, you say the rate increases when it get's more acidic - when the pH is lower.
