Answer:
A
Explanation:
i am sorry if this is wrong
- An aldehyde exists in chain form.
- A ring-shaped hemiacetal exists.
Hemiacetal:
- A reducing sugar is one that reduce other compound and oxidized itself. A sugar can be called as reducing sugar if it has an aldehyde group in the open chain form or hemiacetal group in ring form.
- The hemiacetal consists of a hydrogen bonded to a "R-group," an alcohol, an ether, and a carbon. When an aldehyde and an alcohol interact, the hemiacetal is created.
- The chemistry of carbohydrates revolves around the interactions between hemiacetals and hemiketals. Carbohydrates are made up of long chains of the sugar units known as monosaccharides, much like proteins are long chains of amino acids and DNA and RNA are long chains of nucleotides.
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Answer: True
Explanation:
Sustainable practices refer to the practices, services, and guidelines that are developed in order to protect ourselves within our environment.
Sustainable practices support human, ecological, economic and human health. With sustainability, it's agreed that there are finite resources and they should be used conservatively and maintained for future generations.
The statement is true.
Answer:
d. K+ and Na+ both diffuse into the cell along their concentration gradients and drive the transport of glucose.
Explanation:
Na/K pump is a pump located on the plasma membrane which uses ATP to move 3 Na ions out the cell and brings in 2 K ions into the cell. It is an example of primary active transport. As a consequence,concentration of Na is higher outside the cell, while K concentration is higher inside the cell.
Glucose is transported in the cell against its gradient, together with Na ions (symport) which move down their concentration gradient.
This is an example of secondary active transport because it uses the energy from the primary active transport to move other substances such as glucose against their own gradients.
Wrong. Most of the U.S. experienced significant in- creases in precipitation and streamflow (and de- creases in drought) during the second half of the 20th century
