Answer: 101 neutrons
An element's atomic number is the number of protons in its nucleus. X has 52 protons. The mass number is simply the number of protons AND neutrons in the nucleus. Since 52 is given, it's correct to assume that the remainder consists of neutrons. 153-52 will give you the number of neutrons.
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Answer:
The concentration gradient is the driving force.
Explanation:
Passive transport of substance occurs when they are moved from the region of their higher concentration to that of their lower concentration. The concentration gradient is the difference in the concentration of substances between two regions or across the membrane. The concentration gradient of substances drives their passive movement. The passive movement of substances does not use metabolic energy. Simple diffusion and facilitated diffusion are two examples of this transport.
Answer: c) They are reversible inhibitors
Explanation: B-lactam antibiotics are not are reversible inhibitors. reversible inhibitors are inhibitors which the allow enzymes they inhibit to start working again, as there is no perman effects on the enzymes ( there is no change to the shape of it active site.). They can sometimes appear as competitive, non-competitive or uncompetitive.
