Question 1

Which of the following best describes the function of DNA in the central dogma of molecular biology?

Accepted Answer

Stores genetic information

Question 2

In an experiment testing the effect of Molecule 89C on bacterial cell wall formation, which of the following is the dependent variable?

Accepted Answer

Number of cells with defects in their cell wall

Question 3

Which cell structure is found in both prokaryotic and eukaryotic cells?

Accepted Answer

Ribosome

Question 4

Given the periodic table, what is the atomic number of nitrogen?

Accepted Answer

7

Question 5

How many valence electrons does nitrogen have?

Accepted Answer

$$5$$

Question 6

A molecule has the formula $$C_4H_9NO_2. $$Which of the following is the correct molecular formula for the structure shown in the image (an amino acid with four carbons, nine hydrogens, one nitrogen, and two oxygens)?

Accepted Answer

$$C_4H_9NO_2$$

Question 7

Within a molecule, an oxygen shares a double bond with a carbon. How many electrons are shared in the double bond?

Accepted Answer

$$4$$

Question 8

Rank the following bonds in order of strength in a cellular (aqueous) environment from strongest to weakest.

Accepted Answer

Covalent bonds \u003e Ionic bonds \u003e Hydrogen bonds

Question 9

Which of the following is a correct statement about the plasma membrane?

Accepted Answer

It is found in both prokaryotic and eukaryotic cells

Question 10

In a scientific experiment, which of the following best describes a control variable?

Accepted Answer

A variable that is kept constant to prevent it from affecting the outcome

Question 11

Which of the following statements is a scientific hypothesis?

Accepted Answer

Molecule 89C blocks the ability of bacteria cells to create a cell wall

Question 12

Which of the following bonds is most likely to form between the hydrogen atom of one water molecule and the oxygen atom of another water molecule?

Accepted Answer

Hydrogen bond

Question 13

Which of the following is true about the nucleus in eukaryotic cells?

Accepted Answer

It stores genetic information

Question 14

Which of the following best describes the difference between numerical and categorical data in biological experiments?

Accepted Answer

Numerical data is quantitative and can be measured on a continuous scale; categorical data is qualitative and based on observation

Question 15

Which of the following is a correct match for the number of protons in a nitrogen atom?

Accepted Answer

$$7$$

Question 16

Which of the following is a correct statement about RNA?

Accepted Answer

It carries/transfers genetic information

Question 17

Which of the following best describes the null hypothesis in a biological experiment?

Accepted Answer

There is no significant difference between the experimental and control groups

Question 18

Which of the following is true about lysosomes?

Accepted Answer

They are only found in animal cells

Question 19

Which of the following best describes a prediction in a scientific experiment?

Accepted Answer

A statement about what will happen if the hypothesis is correct

Question 20

Which of the following bonds is most likely to be nonpolar?

Accepted Answer

C-H

General Biology: Foundational Concepts and Problem Set Review

Guida di studio - Domande di pratica

Study guide - Flashcard