This membrane mimics the plasma membrane that is around animal cells. In order to explore how water moves in and out of a cell, one cell was weighed and then submerged in hypertonic solution. The other egg was weighted and submerged in hypotonic solution. It was predicted that the egg submerged in hypertonic solution would decrease in mass. It was predicted that the egg submerged in hypotonic solution would increase in mass.
Explanation:
The outermost covering of an animal cell is the plasma membrane. It is a selectively permeable membrane that allows only selective molecules to pass through it.
A solution having higher concentration of solute than the cell cytoplasm is called a hypertonic solution.
A solution having lower concentration of solute than the cell cytoplasm is called the hypotonic solution.
The movement of water molecules from the region of its higher concentration to the region of its lower concentration through a semipermeable membrane is called osmosis.
A cell placed in hypertonic solution will undergo exosmosis so it will lose water and its mass will decrease.
A cell placed in hypotonic solution will undergo endosmosis of water so it will gain water and its mass will increase.
1. A , 2. D, 3. A , 4.C , 5. B , 6.A
The most appropriate answer is C ! in atomic bomb there is uncontrolled nuclear chain reaction !!
Answer:
Thermal death time.
Explanation:
Thermal death time may be defined as the time taken to kill the bacteria. The thermal death time is mainly used for food canning, cosmetics and pharmaceuticals.
The thermal death time indicates the time required to kill all the microbes at a given temperature and within a given sample. This can be calculated by either graphical method by mathematical formula.
Thus, the correct answer is option (3).
Answer:
The water cycle shows how water moves on earth. It has liquid water evaporating into water vapor. The water vapor then forms into clouds.The clouds then precipitate which make it into liquid water again. The water cycle recycles or continuously reuses the same water. This water has been here since the start.
Explanation:
I hope it helps! Take care!
Skye~
