Answer:
Endocytosis is a cellular process which helps the cell to bring large pr macromolecules inside the cell.
There are many known mechanisms of endocytosis but one of the best-understood mechanism is which involves the molecule called clathrin.
Clathrin is a protein which helps the endocytosis process by assisting the formation of the coated pit in the inner side of the cellular membrane.
When the inner surface when forms a vesicle and pinches off in the cytoplasm, then the clathrin allows the selection of the vesicles cargo and pits to reduce the surface area of the vesicle.
Thus, clathrin plays an important role in endocytosis.
There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
Here's one link : https://www.creative-biogene.com/Services/Stable-cell-line-generation/Custom-Gene-Expression-Cell-Lines.html
Explanation:
Accordingly, the introductory physics laboratories have the following purposes and goals:
1. To provide an experimental foundation for the theoretical concepts introduced in the lectures. It is important that students have an opportunity to verify some of the ideas for themselves.
2. To familiarize students with experimental apparatus, the scientific method, and methods of data analysis so that they will have some idea of the inductive process by which the ideas were originated. To teach how to make careful experimental observations and how to think about and draw conclusions from such data.
3. To introduce the methods used for estimating and dealing with experimental uncertainties, including simple ideas in probability theory and the distinctions between random (statistical) and systematic "errors." This is essential in understanding what valid conclusions can be deduced from experimental data and that, properly obtained, these conclusions are valid, notwithstanding the uncertainty of the data.
The most important mineral for strong bones is calcium. Calcium is the chemical element of atomic number 20, a soft gray metal.
Answer:
calcium
Answer:
Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans
Explanation:
Active transport is a kind of transport in which substances or molecules are moved from a region where they are in low concentration to a region where they are in high concentration. Active transport occurs against concentration gradient, hence, energy input in form of ATP is required.
Based on this description, the option that best ilustrates active transport is when: Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans. The process will require energy to occur since sodium ions are pumped against concentration gradient.