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生物学实验论文荷兰豆的实验环境

澳洲AA论文代写网

[日期:2016-02-28] 来源:澳洲AA论文代写网  作者:AA论文小编 [字体: ]

大小的荷兰豆和实验环境除盐的浓度在不同群体的相似量控制。实验重复次数为六,为每个组。分散的量是合理的。

通过重复测量收集实验数据。样本量比较大。实验周期为一个月。因此,可靠性是比较高的。


系统误差包括实验处理时间和材料选择。延长时间造成的误差主要是由于脱水导致的集中溶液中的植物细胞死亡。细胞通透性的损失以及细胞内物质的释放会影响溶液浓度的准确性。系统误差很可能来源于实验过程中损坏的雪豌豆,导致细胞失活。

为了减少实验仪器和操作引起的随机误差,重复进行实验,结果更准确。

The size of the snow peas and experimentalenvironment except for the salt concentration are controlled in similar amount for different groups. And the experimental repeated times are six for every group. The amount of scatter is reasonable.

The experimental data is collected via repeated measurements. The sample size is relatively large. And the experimental period is one month. So the reliability is relatively high.

The systematic error includes the experimental processing time and materials selection. The error caused by extended time mainly leads to the plant cell death in concentrated solution because of dehydration. Loss of cell permeability as well as the release of intracellular substances will affect the accuracy of the solution concentration. The systematic error is likely to stem from the used snow peas which were damaged in the experimental process, leading to the cell inactivation.

In order to reduce the random errors caused by experiment instrument and operation, repeating an experiment can make the results more accurate.

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