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scoundrel [369]
3 years ago
13

What are two ways cells die.

Biology
1 answer:
slava [35]3 years ago
8 0
<span>A cell can die in many ways - through infection, poisoning, overheating or lack of oxygen. An uncontrolled death is messy: the cell swells up, and its contents leak away. This may damage surrounding cells. But there is another, tidier way to go - programmed self-destruction, or apoptosis.</span>
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What sphincter separates the small intestine from the large intestine?
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What is the medical term for pertaining to the nose and lip?
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3 years ago
In muscle cells, myosin molecules continue moving along actin molecules as long as:
Tju [1.3M]

Answer:

d. ATP is present and the intracellular Ca2+Ca2+ concentration is high.

Explanation:

Myosins are  motor proteins that plays a major role in  muscle contraction. They depend on ATP and responsible for motility in actin-based substances. Skeletal muscle is composed of myosin and actin fibers. Each myosin thick filament is surrounded by actin thin filaments, and each thin filament is surrounded by thick filaments. There exists a strong attraction between the myosin head and the myosin-binding site of actin which binds them spontaneously. This bond is aided by the presence of ATP and the high concentration of intracellular Ca2+. The myosin protein undergoes a change in its shape.

7 0
2 years ago
Lipids include fats, waxes, oils, phospholipids, and steroids. what characteristic do all lipids share?
Lerok [7]

Answer;

-All lipids mix poorly, if at all, with water.

-In other words they are all hydrophobic (water hating).

Explanation;

-Lipids are a diverse group of hydrophobic molecules. They include fats, waxes, oils, phospholipids, and steroids.

-Lipids are among the four biomolecules  others being; carbohydrates, proteins, and nucleic acids.

They are made of- C, H, O- with no specific ratio. The categories of lipids include; oils, fats, wax.

-Their main roles includes; insulating and protection, and  long term energy storage.

They don't form polymers- only monomers.

They don't mix with water- hydrophobic.

There are three types namely; phospholipids, cholesterol, steroids .

7 0
3 years ago
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