Question 1

Which of the following best describes the primary goal of the scientific method as introduced in the first weeks of a General Biology course?

Accepted Answer

To develop and test hypotheses through observation and experimentation

Question 2

A student is designing an experiment to test the effect of light on plant growth. Which of the following is the best example of a controlled variable in this experiment?

Accepted Answer

The amount of water each plant receives

Question 3

Which of the following statements about DNA is correct according to the course objectives?

Accepted Answer

DNA contains the instructions for building proteins

Question 4

According to Bloom's Taxonomy, which of the following tasks demonstrates the highest level of cognitive learning?

Accepted Answer

Designing an experiment to test a new antibiotic

Question 5

A patient is diagnosed with sickle cell anemia, a genetic disorder. Which concept from the course best explains the inheritance of this disease?

Accepted Answer

Mendelian genetics and the concept of recessive alleles

Question 6

Which equation correctly represents the process of cellular respiration?

Accepted Answer

$$\mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 + 6\ \mathrm{O}_2 ightarrow 6\ \mathrm{CO}_2 + 6\ \mathrm{H}_2\mathrm{O} + 	ext{energy}$$

Question 7

Which of the following best explains why enzymes are essential for life?

Accepted Answer

They speed up chemical reactions by lowering activation energy

Question 8

A cell is placed in a hypertonic solution. What will most likely happen to the cell?

Accepted Answer

It will lose water and shrink

Question 9

Which of the following is a correct application of the concept of homeostasis?

Accepted Answer

A lizard basking in the sun to raise its body temperature

Question 10

Which of the following best describes the relationship between structure and function in biology?

Accepted Answer

The structure of a biological molecule determines its function

Question 11

A scientist observes that a certain enzyme works best at pH 7. What is the most likely outcome if the pH is changed to 3?

Accepted Answer

The enzyme will denature and lose its function

Question 12

Which of the following is an example of a hypothesis that could be tested in a biology lab?

Accepted Answer

Plants grow taller when exposed to blue light compared to red light

Question 13

Which of the following best describes the function of ribosomes in a cell?

Accepted Answer

They synthesize proteins from amino acids

Question 14

Which of the following equations correctly represents photosynthesis?

Accepted Answer

$$6\ \mathrm{CO}_2 + 6\ \mathrm{H}_2\mathrm{O} + 	ext{light energy} ightarrow \mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 + 6\ \mathrm{O}_2$$

Question 15

Which of the following best illustrates the application of the concept of evolution by natural selection?

Accepted Answer

A population of bacteria becomes resistant to antibiotics over time

Question 16

Which of the following is a multi-step process that involves both DNA replication and cell division?

Accepted Answer

Mitosis

Question 17

A student is asked to evaluate the validity of a scientific claim. According to Bloom's Taxonomy, which cognitive level are they using?

Accepted Answer

Evaluating

Question 18

Which of the following best describes the role of the plasma membrane in cells?

Accepted Answer

It controls the movement of substances into and out of the cell

Question 19

Which of the following is an example of applying the scientific method to a real-world problem?

Accepted Answer

Testing different cleaning agents to determine which kills the most bacteria on kitchen surfaces

Question 20

Which of the following best explains why water is essential for life?

Accepted Answer

It is a universal solvent, allowing many substances to dissolve and react in cells

Biology I Syllabus and Course Overview – General Biology

Study Guide - Practice Questions

Study Guide - Flashcards