The given question says that a student has constructed a model of cellular transport using fences and several gates.
This model can be used to demonstrate the cellular transport.
The gates of the fences can be supposed as the protein pumps and the other fence demonstrates the lipid bilayer.
Let’s suppose in the fence, there are many cattles, and outside, there are less cattles, but the student open the gate and bring more cattles inside the fence. In this case, the transport of the cattles is similar to the active transport of the molecules using protein pumps. At cellular level, the energy for the active transport is provided by ATP molecules.
Now, let’s say, the student wants to feed the cattles with some nutrition rich food, which can help in maintaining the health of the cattles. The student fills his car with the cattle food and he enters inside the fence through gates. In this case, the food was not present in the fence, but was abundant in the outside environment, so, the diffusion would occur. But food cannot come self, without help of others, so, the movement is facilitated by the car, as it is done by the carrier proteins. Hence, it is an example of facilitated diffusion.
Answer:
1) The stage of mitosis in which the chromosomes move to opposite ends of the cell. >>>> Anaphase
2) forms the ends of the spindle fibers in the cell during mitosis.
>>>>>Centriole.
3) part of a chromosome that attaches to the spindle apparatus during mitosis or meiosis. >>>>>Centromere
4) a structure that forms across the middle of a higher plant cell in telophase; the beginning of a new cell wall which divides the two daughter cells from one another to finish mitosis. >>>>>Cell plate.
5) material in the cell nucleus that carries hereditary information; made up of DNA and various kinds of protein. >>>>>Chromatin.
Answer:
Advantage
Explanation:
It all comes down to a process called gene regulation. This is how our genes are turned off and on, for minor things like hair color and vital functions like protection from cancer. Within our bodies, we house trillions of cells, all busily going about doing their jobs while we enjoy our days
