Answer: Diffusion, Osmosis and Active Transport
Explanation:
The processes of transport between the cell and the external environment can be grouped into groups: Passive Processes - occur through the plasma membrane, without energy expenditure to the cell, to equalize cell concentration with the external medium. Examples of such processes are diffusion, facilitated diffusion and osmosis. Active processes - occur through the plasma membrane, with energy expenditure, maintaining the concentration difference between the cell and the external environment. For example, sodium-potassium pump. Diffusion In diffusion, particles move from the highest concentration medium to the lowest concentration medium, so that it can be distributed throughout the medium. Therefore diffusion is a process called passive transport. Facilitated Diffusion is the passive transport of substances across the plasma membrane, without wasting cell metabolic energy, allowing the passage of substrates (molecules or ions) from a more concentrated to a less concentrated medium through specific mediation of carrier proteins, enzymes carriers or permeases along the plasma membrane. This process is mainly used to transport carbohydrates, amino acids, vitamins and some ions: sodium, potassium, calcium. Osmosis is the name given to the movement of water between media with different concentrations of solutes separated by a semipermeable membrane. It is an important physicochemical process in cell survival.
The sodium-potassium pump is an example of active transport. Sodium concentration is higher in the extracellular environment while potassium is higher in the intracellular environment. Importantly, the energy required for this change comes from the breakdown of the ATP (adenosine triphosphate) molecule into ADP (adenosine diphosphate) and phosphate. The sodium (Na +) ion in the cytoplasm is pumped out of the cell. In the extracellular medium, the potassium ion (K +) is pumped into the internal medium. If there was no efficient active transport, the concentration of these ions would equal. Thus, the sodium and potassium pump is important as it establishes the difference in electrical charge between the two sides of the membrane that is critical for muscle and nerve cells and facilitates the penetration of amino acids and sugars.
Mean 48, Range 7,
A data set is a grouping of connected, discrete pieces of connected data that can be viewed separately, together, or handled as a single unit.
<h3>What about data set?</h3>
- One or more records may be found in a file, which is referred to as a data set.
- The fundamental informational unit employed by z/OS software is the record.
- A data set is any named collection of records.
- A collection of numbers or values pertaining to one subject constitutes a data set.
- A data set might include, for instance, each student's test results in a certain class.
- A data set is the number of fish that each dolphin consumes in an aquarium.
- Finally, we define the different sorts of data sets into three groups: record data, graph-based data, and ordered data.
- The kind of a Data Set reflects the particular kind of data you want to import.
- Data Set types, for instance, can be found for user data, cost data, content data, etc.
- You'll have several options for the dimensions and metrics (the schema) you can employ depending on the type of data set.
- Assemble the raw data.
- Determine the feature and the sources.
- Decide on a sample plan.
- Dividing the data.
Learn more about data set here:
brainly.com/question/12570264
#SPJ13
Explanation:
Answer is 2
It is a nonselective process, so it might cause an allele to disappear from the gene pool by chance.
I hope it's helpful!!
A carbon atom has 4 valence electrons
