Exposure to Chlorine would most likely result in immediate respiratory distress.
Elevated concentrations of chlorine exposure result in pulmonary congestion, a condition marked by fluid accumulation in the lungs.
The toxic effects of chlorine are primarily caused by the reaction of elemental chlorine (Cl2) with water, which results in the production of hypochlorous and hydrochloric acid. The subsequent reaction between these two acids creates oxygen free radicals.
Chlorine gas is a hazardous material that could be used in industrial accidents or as a weapon by terrorists. This review will discuss pre-hospital considerations, summarise recent incidents involving chlorine catastrophic events and its use by terrorists, and offer strategies for the preliminary management of acute chlorine exposure events.
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Answer:
Enzymes and substrates fit together like a lock and key since, in one enzymatic reaction, only the correct substrate (i.e., the key) binds to its corresponding enzyme (i.e. the lock).
Explanation:
An enzyme (or catalyst) is one protein that has catalytic functions, being therefore capable of accelerating chemical reactions. The enzymes are known to control the rate of these chemical reactions (i.e., catalysis) without suffering alterations during these processes. Thus, the enzymes are proteins that catalyze chemical reactions that are not favored under normal conditions. Moreover, one enzyme may catalyze more than one chemical transformation, as well as the same reaction may be catalyzed by two or more enzymes.
The true statements are the following:
3. Genes that are expressed in all cell types usually vary in their level of expression in different cell types.
4. Many differentiated plant cells can be fully de-differentiated and give rise to an entire plant.
Explanation:
Gene expression patterns are cell-specific, it means that in a cell genes are expressed at different levels in order to carry out their functions. In consequence, distinct gene expression patterns can be associated with distinct cellular types.
Plant cells that are differentiated may be reverted to their original (pluripotent) state and even they can be activated to produce a completely totipotent embryo that is then capable of producing differentiated plant tissues and organs.
The question is incomplete as it does not have the options which are:
A. endocytosis
B. active transport
C. facilitated diffusion
D. infusion
E. osmosis
Answer:
B. active transport
Explanation:
The neuron cell involves the influx and efflux of the sodium and potassium ions. These ions move through membrane proteins by facilitated diffusion and active transport.
The active transport allows the movement of ions against the concentration gradient that is even if the concentration of ions is higher.
In the given question, although the potassium ions are higher in the cytoplasm of the neuron, the potassium ions can enter the cell through active transport.
Thus, active transport is correct.
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