Mitosis is a process of cellular division resulting in a single cell splitting into two identical cells.
The sequence of events is as follows:
(1) Prophase
<span>(a) During the early prophase, cells begin to disassemble some components and construct others. This phase prepares for chromosome division.</span><span>(b) In prometaphase, the mitotic spindle starts organizing and seizing the chromosomes.
</span>
(2) Metaphase
<span>All chromosomes are captured by the spindle, which aligns them along the cell's center, prepping for division.
</span>
(3) Anaphase
<span>The sister chromatids are pulled apart and migrate to opposite ends of the cell.
</span>
(4) Telophase
<span>The division of the cell is nearly complete, and it begins to reorganize its normal internal structures while cytokinesis occurs.</span>
Answer:
The continuation of the question is
Which explains the reasoning behind this fact?
Their DNA comprises different codon sequences.
It is composed of four distinct bases.
Kai received more proteins from one parent compared to the other.
The varied inheritance of amino acids from her parents led to the difference.
The correct response is Their DNA comprises different codon sequences.
DNA, or Deoxyribonucleic acid, consists of nitrogenous base pairs, a phosphate group, and deoxyribose sugar. The amino acids formed from these bases result in varied expression of traits. This variation stems from the diversity in coding sequences since there are over 60 distinct codon combinations. This accounts for the slight differences between Kai and her parents.
Answer: Enzymes reduce the activation energy associated with food molecules
Explanation:
Chemical entities such as yams, potatoes, eggs, etc., consist of elements linked together by chemical bonds like hydrogen bonds and covalent bonds.
To facilitate digestion, these bonds must be disrupted in order to convert carbohydrates into glucose and proteins into amino acids.
Therefore, when enzymes are introduced, they lower the bond strengths or activation energies by positioning them appropriately in their active sites, designed to cleave specific bonds.
As a result, digestive processes become faster in the presence of enzymes compared to without them.
Answer: The hormones secretin and cholecystokinin act on the pancreas, stomach, and gallbladder.
Explanation:
The duodenum produces two more hormones. Cholecystokinin (CCK), similar to enterogastrone, is released when fat is present in the chyme. CCK promotes the contraction of the gallbladder, which releases bile into the duodenum to help emulsify and digest fat more effectively. The other hormone from the duodenum is secretin. In response to the acidic chyme entering the duodenum, secretin triggers the pancreas to release bicarbonate, thereby neutralizing some of the acid.
The liver has a crucial function in digestion by secreting bile juice which facilitates fat digestion. When digestion is not occurring, this bile is stored in the gallbladder. The bile juice, a yellowish fluid, emulsifies fat molecules during digestion in the small intestine, which is essential for both fat digestion and absorption. Therefore, the liver releases bile juice and emulsifies fats in the lumen of the small intestine.
