Answer:
Cells are placed in a solution that causes them to absorb liquid until they burst. When more water is removed from the solution, newly added cells do not burst. The original solutions was hypertonic solution , while the second was hypotonic solution to the cells.
Explanation:
The lac operon, which stands for Lactose operon is known as an inducible system. It is the an operon required for the transport and metabolism of lactose some enteric bacteria (Echerichia coli for example). The Lac operon is only activated in the presence of a key molecule. The key molecule is lactose.
From the given options the following best describes the Lac operon:
D. The repressor is freed from the operator when lactose is present.
Answer:Human approach, attitudes and adherence to the safety skills does deal with the impact over environmental factors at a personal level. We have to be more careful and cautious while we pursue our own habits, and activities, with the aim of posing less harm to the environment in any way.
Explanation:
Answer:
Prediction is correct.
Explanation:
In the body, transportation of molecules can occur in different ways or mechanism.
An example is by facilitated diffusion.
It is a passive form of transport where carrier proteins shuttle the molecule such as glucose into the cell without using energy.
Glucose being a large molecule is shuttled by glucose carriers across the cell membrane into the cell by facilitated diffusion.
Therefore an increase in the number of glucose carrier means an increase in the rate of glucose transport.
The results will show our prediction was correct.
