AP Biology Unit 1 Review

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What is a saturated fat?

Back

A type of lipid molecule that has no double bonds between carbon atoms, meaning it is saturated with hydrogen atoms. Saturated fats are typically solid at room temperature and are found in animal fats and some plant oils.

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What is a null hypothesis?

Back

A statement that there is no effect or no difference, used as a starting point for statistical testing. It is often denoted as H0.

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What does a large standard deviation indicate?

Back

It indicates that the data points are spread out over a wider range of values, showing greater variability in the dataset.

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What is the relationship between standard deviation and standard error of the mean?

Back

Standard deviation measures the variability of individual data points, while standard error of the mean measures the accuracy of the sample mean as an estimate of the population mean.

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What is the secondary structure of proteins?

Back

The secondary structure refers to the local folded structures that form within a protein due to hydrogen bonding, commonly seen as alpha helices and beta sheets.

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Back

It represents the standard deviation of a population.

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What is the difference between a population and a sample in statistics?

Back

A population includes all members of a specified group, while a sample is a subset of the population used to make inferences about the whole.

Front

What is an alpha helix?

Back

A common type of secondary structure in proteins characterized by a right-handed coil where each amino acid corresponds to a turn of the helix.

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What is the purpose of hypothesis testing?

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To determine whether there is enough evidence in a sample of data to infer that a certain condition holds for the entire population.

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What is the significance of a p-value in hypothesis testing?

Back

The p-value indicates the probability of obtaining test results at least as extreme as the observed results, assuming that the null hypothesis is true.