Answer:
<em><u>H1: false, the observations of the molecules do not support the hypothesis...</u></em>
Explanation:
The cell membrane is comprised of a phospholipid bilayer, proteins, and cholesterol. These components help the membrane to maintain its selective permeability and concentration of solutes and water.
The lipid molecules have polar hydrophilic heads and hydrophobic tails. These only readily allow for the movement of small non polar molecules. Other substances, like charged ions and large molecules require transport proteins to move in and out of the cell. Hypothesis: H+ is small and should be able to move freely through the membrane, While glucose is large and cannot move freely
- Observing H+, despite being very small these cannot easily pass through the membrane. They require transport proteins called channels for their free movement or passive movement across the membrane.
- For glucose, these molecules pass through specialized channels in facilitated diffusion. They move down their concentration gradient into the cell. To move out of the cell against its concentration gradient glucose requires ATP for active transport.
- Cortisol, is a large steroid hormone, taken into the cell by simple diffusion across the lipid membrane, down its concentration gradient.
A variation of language found in a geographically isolated area is called regional dialect.
Dialect is a word meaning a variety of language that signals where a person comes from. Dialect is usually interpreted geographically (regionally) hence the term regional dialect.
A dialect is distinguished from other dialects of the same language mainly by features of linguistic structure such as grammar (specifically morphology and syntax) and vocabulary.
For example wheat known by that name in England while in Scotland it is known as oats. Corn is known by that name in England while in America it is known as maize.
Answer:
This is known as demographic transition. A county has recently evolved from underdeveloped to developed and the birth and death rate have stabilized. This is known as demographic transition
Explanation:
The different forms a gene may have for a trait are called alleles. Blood type is an example of alleles. They determine the hereditary characteristics an offspring gains from their parents.
Answer:
b
Explanation:
earth's ocean did grew higher over time because o rainfall for the last 20 years!
