Why do you need to take biology in college if your major is Nursing?

Biology

2 answers:

TiliK225 [7]2 years ago

8 0

Answer:

Because you still have to obtain degree in your nursing

bogdanovich [222]2 years ago

7 0

Biology you learn the body parts in detail, cells , and atoms. Nursing you need to know your body parts, your cells, and atoms
Hope that helped

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What do fertilizers contain, that make plants and algae grow faster

arsen [322]

Answer:

the fertilizers contain nitrogen potassium and phosphorus . this makes the plants and algae grow faster

Explanation:

Fertilizers supply plants with the elements that may be missing or in short supply in a form that can be used by the plants for faster growth. Most fertilizers supply nitrogen, phosphorus and potassium

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2 years ago

Using the sliding flament theory, explain (or draw) the process of sarcomere shortening. Start from the point where calcium woul

Arte-miy333 [17]

Answer:

Calcium binds to troponin C
Troponin T moves tropomyosin and unblocks the binding sites
Myosin heads join to the actin forming cross-bridges
ATP turns into ADP and inorganic phosphate and releases energy
The energy is used to impulse myofilaments slide producing a power stroke
ADP is released and a new ATP joins the myosin heads and breaks the bindings to the actin filament
ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, starting a new cycle
Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.

Explanation:

In rest, the tropomyosin inhibits the attraction strengths between myosin and actin filaments. Contraction initiates when an action potential depolarizes the inner portion of the muscle fiber. Calcium channels activate in the T tubules membrane, releasing <u>calcium into the sarcolemma.</u> At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to troponin C, troponin T alters the tropomyosin position by moving it and unblocking the binding sites. Myosin heads join to the uncovered actin-binding points forming cross-bridges, and while doing so, ATP turns into ADP and inorganic phosphate, which is released. Myofilaments slide impulsed by chemical energy collected in myosin heads, producing a power stroke. The power stroke initiates when the myosin cross-bridge binds to actin. As they slide, ADP molecules are released. A new ATP links to myosin heads and breaks the bindings to the actin filament. Then ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, which starts a new binding cycle to actin. Finally, Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.