$$C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{energy}$$

Question 1

Which of the following best describes the scientific method as used in biology?

Accepted Answer

A process involving observation, hypothesis formation, experimentation, and analysis to understand natural phenomena.

Question 2

Water is essential for life due to its unique properties. Which property of water allows it to moderate temperature in living organisms?

Accepted Answer

High specific heat capacity, as described by $$q = mc\Delta T$$

Question 3

Which macromolecule is primarily responsible for storing genetic information in cells?

Accepted Answer

DNA (Deoxyribonucleic acid)

Question 4

A scientist is studying the effect of pH on enzyme activity. Which variable is the independent variable in this experiment?

Accepted Answer

The pH level of the solution

Question 5

Cell membranes are described as 'fluid mosaics.' What does this term mean?

Accepted Answer

Membranes consist of a flexible phospholipid bilayer with embedded proteins and other molecules.

Question 6

Which equation correctly represents the process of cellular respiration?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{energy}$$

Question 7

During mitosis, which phase is characterized by the alignment of chromosomes along the center of the cell?

Accepted Answer

Metaphase

Question 8

A patient is diagnosed with a disorder affecting the mitochondria. Which cellular process is most likely to be impaired?

Accepted Answer

Cellular respiration and ATP production

Question 9

Which of the following best explains why phospholipids form bilayers in water?

Accepted Answer

Phospholipids have hydrophilic heads and hydrophobic tails, causing them to arrange with heads facing water and tails facing inward.

Question 10

Which process is responsible for the synthesis of proteins from mRNA?

Accepted Answer

Translation

Question 11

A mutation occurs in the gene coding for an enzyme involved in glycolysis. What is the most likely consequence?

Accepted Answer

The cell's ability to generate ATP from glucose will be reduced.

Question 12

Which of the following statements about meiosis is correct?

Accepted Answer

Meiosis results in four haploid cells, each with half the chromosome number of the original cell.

Question 13

Which of the following best describes the role of enzymes in biological reactions?

Accepted Answer

Enzymes act as catalysts, lowering the activation energy and increasing reaction rates.

Question 14

A cell placed in a hypertonic solution will:

Accepted Answer

Lose water and shrink

Question 15

Which of the following is a correct statement about DNA replication?

Accepted Answer

DNA replication results in two identical DNA molecules, each with one old and one new strand.

Question 16

Which equation represents the photosynthesis process in plants?

Accepted Answer

$$6CO_2 + 6H_2O + 	ext{light energy} ightarrow C_6H_{12}O_6$ + 6O_2$$

Question 17

Which of the following is NOT a function of proteins in living organisms?

Accepted Answer

Storing genetic information

Question 18

A genetic disorder is caused by a mutation in a gene responsible for a membrane transport protein. Which cellular process is most likely affected?

Accepted Answer

Active transport of ions across the cell membrane

Question 19

Which of the following best explains the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

Question 20

A student is asked to compare mitosis and meiosis. Which statement is correct?

Accepted Answer

Mitosis produces two identical diploid cells, while meiosis produces four genetically unique haploid cells.

General Biology I (BIOL 1440) Syllabus and Study Guide

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