Answer:
The correct answer would be B. semi-permeable.
Plasma membrane of any cell including red blood cell is semi-permeable in nature as it is made up of lipid bilayer.
It permits the passage of certain substances across the membrane while it blocks other substances.
Gases, small uncharged or non-polar substances such as oxygen, carbon dioxide, et cetera can easily pass through the cell membrane of a cell.
Large or charged molecules such as proteins, sodium ions, potassium ions et cetera can not pass through the cell membrane. They require carrier proteins to pass through the membrane.
Proteins is used to build and repair cells.
Protein can be found in every living cell and it is very
important building block in the body. Protein supply amino acids which were
being used to create and repair cells, enzymes, red blood cells, antibodies and
tissues. In the body, protein functions by maintaining fluid balance and
transportation substances. Protein can be gotten from meat, dairy products, soyabeans,
nuts, beans and certain grains. However,
protein from meat and other animal products are known as complete protein.
Answer:
the thin filaments are pulled away from one another, thereby reducing their ability to interact with myosin
Explanation:
The myofibril is the basic unit of a muscle cell. Each myofibril is composed of contractile units known as sarcomeres which may contain two different types of myofilaments: thick myofilaments and thin myofilaments. The thick filaments are known to have a constant length, and they consist especially of myosin proteins. These filaments (thick) do not extend to the ends. On the other hand, the thin filaments extend in from each end, and they are mainly composed of actin proteins that serve as tracks for the movement of myosin proteins.
To prevent UTIs, the nurse teaches the client to void (empty) immediately after sexual intercourse.
<h3>What are urinary tract infections (UTIs)?</h3>
- UTIs are commonly occurring infections that occur when the bacteria, quite often from the skin or rectum, enter the urethra and infect the urinary tract.
- The infection may occur in any part of the urinary system i.e. the kidneys, bladder and the urethra.
- These infections are commonly occurring in women.
- The symptoms include pelvic pain, strong urge to urinate, pain with urination, cloudy urine and blood in the urine.
- To prevent UTIs, drink plenty of water, empty your bladder soon after intercourse, drink cranberry juice and avoid irritating feminine products.
- The easiest way to prevent UTIs is to flush the bacteria immediately out of the urinary tract before it starts to grow there. Therefore, drink lots of water.
Learn more about Urinary Tract Infections (UTIs) here:
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I agree, the overhunting of the baleen whales means there are more penguins than the whales, therefore, the penguins will continue to breed with no predator to help balance out the population.
