The answer to this problem is Letter B
Answer:
True.
Explanation:
Hydrogenation is reduction reaction that leads to the addition of hydrogen to make an hydrogenated organic compound becomes more saturated with hydrogen atoms.
This process typically requires the use of catalyzing agent that takes place only at high temperatures that may affect not only essential fatty acids in oils but also certain vitamins.
Thus, the correct answer - true.
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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.
<span>Both the male and female gametes are formed during a process of cellular reproduction called meiosis. During meiosis the DNA is only replicated or copied 1 time. However, the cells are divided into 4 separate cells. This means that the new gamete cells have only half of the number of chromosomes as other cells.</span>