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maria [59]
2 years ago
7

From which substance are antibiotics usually derived?

Biology
1 answer:
rodikova [14]2 years ago
5 0
Antibiotics are usually derived from bacteria.
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i don’t get this lol but ok
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3 years ago
It took 600 newtons of force to move a car 4 meters. How much work was done?
mart [117]

Answer:

2400 Joules

Explanation:

Work done = force × distance

work done= 600×4

Therefore, work done=2400joules

P.S: the SI unit for work done is JOULES

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Match these items .
dangina [55]
1. scales & cone parts

2. Pistil and stamen & flower parts

3. egg & female cell

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2 years ago
Neurons that carry impulses from the eyes to the spinal cord and brain are called
Step2247 [10]
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6 0
3 years ago
What is the most important distinction between the membrane transporters known as channel proteins and those known as carrier pr
-Dominant- [34]

Answer:

Channel proteins form hydrophilic channels to passively transport substances down the concentration gradient.

Carrier proteins bind to substances to transport them actively against the concentration gradient. They do not form channels.

Explanation:

Channel proteins are the membrane proteins that serve in transport of small polar molecules and/or ions by making a hydrophilic pore across the membrane. These molecules diffusion through the pore and exhibit facilitated diffusion.  

Carrier proteins are the membrane proteins that transport the substances across the membrane by binding to them. They do not form the hydrophilic channels. Carrier proteins serve in the active transport of molecules against the concentration gradient.

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