Answer:
<u>d. Transport proteins within the membrane serve as a tunnel for molecules to enter the cell.
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Explanation:
Solutes are typically moved across the cell through either passive or active transport. The cells, surrounded by a bilipid layer or plasma membrane is amphiphlic- its polar, hydrophilic lipid heads face outwards, while their non-polar hydrophobic lipid tails face inwards towards each other.
While lipid-soluble molecules move across the layer easily, it is also difficult for charged and also large molecules to move across its surface, into the cell. Transmembrane channels, <u>embedded within the membrane</u>, help to maintain selective permeability as transport proteins, pores and gated channels. Simple diffusion happens as a method of passive transport in cells through plasma membranes.
The solutes travel through the plasma membrane in the process of diffusion from regions of high concentration to regions of low concentration; this occurs without the use of energy. <u>Molecules moving against their concentration require active transport mechanism to cross the membrane</u>.
Answer: Monitor the site dressing and vital signs.
Explanation:
The bone marrow is the soft tissue inside bones that helps form blood cells. It is made up of a liquid part and a more solid part. And it is found in the hollow part of most bones. The bone marrow is
The biopsy and bone marrow aspiration are usually done at the same time. Together, these two procedures may be called a bone marrow study.
Marrow aspiration is the removal of a small amount of this tissue in liquid form for testing. Bone marrow biopsy and bone marrow aspiration are procedures that allow samples of bone marrow (the spongy tissue inside some of the longer bones) to be removed and tested. In a bone marrow biopsy, the doctor uses a needle to remove a sample of the solid part. In a bone marrow aspiration, a needle is used to remove a sample of the liquid part.
<u>Bone marrow aspiration and biopsy may indicate whether the bone marrow is healthy and producing normal amounts of blood cells</u>. Doctors use these procedures to diagnose and monitor blood and marrow diseases, such as some cancers and fevers of unknown origin. <u>After the procedure, it is important to control the wound so that it does not become infected, and to monitor vital signs.</u>
Answer:
Mrs Jones Blood type= B type.
Safe transfusion from: B and O blood type.
Explanation:
In the given example, the anti-B antibodies are present in the donor plasma. Since anti-B antibodies react with B antigen present on the RBCs of blood, Mrs. Jones should have B antigen on the surface of her RBCs. The blood type with only B-antigen on the RBC's surface is blood type "B".
Hence, her blood type is "B" type which has B antigens that react with anti B antibodies of the donor plasma causing agglutination and hemolysis of RBCs.
She can get the blood of B and O blood types. Blood type O is a universal blood type as it does not have B or A antigens on the surface of its RBCs to initiate the agglutination.
Answer:
computers do not produce energy they consume energy
