Erythrocytes are the functional component of blood responsible for the transportation of gasses and nutrients throughout the human body. Their unique shape and composition allow for these specialized cells to carry out their essential functions. Erythrocytes would swell and burst if placed in conditions:
Correct answer: C. 0.15% NACL solution
- A. Temperature of 310 K
- B. 15% NACL solution
- C. 0.15% NACL solution
- D. 15% Hydrochloric acid
Explanation
This is a hypotonic solution (lower concentration of solutes). Hypotonic solutions can cause cells to take in water and swell. In extreme cases, it could lead to bursting (hemolysis) of erythrocytes.
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About Scientific Reasoning
Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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A pyrethroid is an organic compound similar to the natural pyrethrins, which are produced by the flowers of pyrethrums.Pyrethroids are used as commercial and household insecticides.Pyrethroid is an organic compound produced by the flowers of pyrethrums. Scientists found that even in a bee populated area, the bees were not found near the pyrethrums. After further research they concluded that pyrethroid is a defensive chemical produced by these plants to keep bees away from the flowers by affecting the neurochemical pathway of the bees. Scientists further researched and developed a synthetic pyrethroid and was introduced as an insecticide on a commercial scale to farmers in the early 1900s. Initially it was very successful in keeping insects away. However, after a while the farmers started feeling severe mood swings and nausea on a daily basis. Later, scientists further studied the insecticide and deduced that the insecticide in large quantities also affected the neurochemical pathways of the farmers and reduced the synthesis of a neurotransmitter in the brain. Which neurotransmitter did the Pyrethroid affect in the farmers who used the insecticide in a large quantity