I think the correct answer from the choices listed above is option C. <span>Enzymes are catalysts. This means that they are able to speed up chemical reactions. Also, they are not used up by reactions. They are not being consumed in the process. Hope this answers the question. </span>
There a small amount of alcohol in celery and salt the two make a base particles that run that soaks up the food colouring
Answer:
a. vitamin d and vitamin b12
Explanation:
Vitamins are groups of organic compounds that are essential in small quantities for healthy human growth, metabolism, development, and body function. Vitamins are found in plants and animal foods or sometimes produced synthetically. Deficiencies of specific vitamins produce specific disorders. Vitamin d and vitamin b12 are important vitamins that the body needs. The body produces vitamin D when the skin is exposed to sunlight and it is very essential for strong bones, while vitamin b12 is naturally present in meats. Deficiency of vitamin d in the body can result in bone problems (including teeth) and it has also been linked to depression. Vitamin b12 deficiency can also affect mental functions by causing disorientation, memory loss, depression and confusion.
From the question, the elderly woman may be developing a deficiency of vitamin d and vitamin b12.
Answer:
Cell will not replicate because of incomplete DNA replication.
Explanation:
DNA replication is crucial for reproduction/replication of any organism as it involves the duplication of genetic material. So if an organism is unable to perform proper DNA replication it would not be able to reproduce.
DNA polymerase is the enzyme that synthesize the new DNA strand in DNA replication. DNA polymerase can synthesize a strand only in 5'→3' direction. Both of the strands of DNA molecules are opposite in direction. So one strand is synthesized continuously called as leading strand while the other strand is synthesized in form of okazaki fragments called as lagging strand.
The okazaki fragments are joined together by the enzyme ligase. So if Ligase enzyme is absent in bacteria it would not be able to synthesize the lagging strand of DNA and thus could not be able to produce a replica of DNA. And if there is No replication of DNA then No replication of cell would occur.
Answer:
蛋白质合成的场所只能是核糖体 在核糖体上合成的蛋白质会被转送到内质网进行进一步的加工 包括折叠、组装和糖基化等一系列的过程。最终再经过高尔基体的加工和包装 进行分泌
在内质网上的操作仅仅是加工而已 使蛋白质产生三级四级结构，但是合成的过程（脱水缩合）一定是在核糖体上的。
Explanation:
