Out of the following given choices;
Select one:
a. hydrogen ions
b. carbonic acid
c. carbonic anhydrase
d. water
The answer is C. carbonic anhydrase is found in red blood
cells and is used to catalyze the forward
and reverse reactions of H2O + CO2 ---à H2CO3 in tissues and
lungs. However, in the plasma, this
reaction is spontaneous in the presence of
water and carbon dioxide (but slower to
that of RBC). It is important in the regulation of pH of blood. The carbonic acid dissociates into H3 + and - HCO3 ions and back to carbonic acid in an equilibrated
and balanced reaction.
Answer:
<em>The correct option is A) the gene that codes for an important cell membrane protein
.</em>
Explanation:
Cystic fibrosis can be described as a condition which arises when a mutation occurs in the CTFR gene takes place. The CTFR gene codes for CTFR proteins. CTFR proteins can be described as proteins present in the transmembrane. These proteins are transmembrane regulators. In cystic fibrosis, the person is not able to produce the CTFR protein at all or makes abnormal CTFR protein. As a result, a thick and sticky mucus is generated.
<u>Function of mitosis be in the mosquito:</u>
Like any other cells the cells of the mosquito also undergoes the cell cycle. When it is in the resting Interphase growth occurs in the cells and replication of chromosomes occur. Then in prophase the nuclear membrane is lost and the chromosomes become thickened and coiled.
In Metaphase the doubled chromosome reach the equator of the cell and spindle fibers gets attached to the centro-meres. In anaphase they separate and move towards the opposite poles. Then during cytokinesis the two daughter cells are formed.
Answer:
Different types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. This evidence made scientists take a second look at Wegener's hypothesis of continental drift.
Explanation:
Mitotic division in onion root cells:
- Prophase: the emergence of chromatin threads that form chromosomes, the chromosomes are visible and overlap.
- Metaphase: chromosomes line up and line up in the middle of the equatorial plane. The centromere of the chromosome appears to have bonds with the kinetochores connected to the spindle threads.
- Anaphase: the centromere of the chromosome undergoes division then the chromosomes are pulled by the spindle threads towards the two opposite poles and leave the center of the equator that looks empty.
- Telophase: The cytoplasm divides into two identical-looking daughter cells. At the telophase stage, the process of cell division occurs in two parts and has identical properties.
Mitosis is a cell division through the stages of prophase, metaphase, anaphase, and telophase. The purpose of mitosis is for growth and regeneration which results in two daughter cells that are identical to the original parent cell. Mitosis occurs only once and lasts only during somatization.
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