Question 1

Which of the following best describes the concept of emergent properties in biological systems?

Accepted Answer

Emergent properties are features that result from the arrangement and interaction of parts within a system, such as consciousness arising from neural networks.

Question 2

A scientist is studying the effect of a new drug on memory in mice. Which step of the scientific method is the scientist performing when they formulate a prediction about the drug's effect?

Accepted Answer

Making a prediction

Question 3

Which of the following is NOT a domain in the taxonomy of life?

Accepted Answer

Protista

Question 4

Which chemical bond is primarily responsible for the unique properties of water, such as its high specific heat and surface tension?

Accepted Answer

Hydrogen bonds

Question 5

Given the equation for the dissociation of water: $H_2O \rightleftharpoons H^+ + OH^-$, what is the relationship between $[H^+]$ and $[OH^-]$ at neutral pH?

Accepted Answer

$[H^+] = [OH^-]$

Question 6

Which of the following best explains why water is an effective solvent for ionic compounds?

Accepted Answer

Water's polarity allows it to surround and separate positive and negative ions, dissolving them.

Question 7

A buffer solution contains a weak acid and its conjugate base. If a small amount of strong acid is added, what will happen to the pH?

Accepted Answer

The pH will decrease slightly but remain relatively stable.

Question 8

Which of the following is a correct formula for calculating pH?

Accepted Answer

$pH = -\log_{10}[H^+]$

Question 9

Which of the following statements about macromolecules is correct?

Accepted Answer

Carbohydrates are polymers of monosaccharides.

Question 10

Which process is responsible for joining monomers to form polymers, such as the formation of a polysaccharide from monosaccharides?

Accepted Answer

Condensation (dehydration synthesis) reaction

Question 11

A patient is diagnosed with a genetic disorder affecting the structure of their cell membranes. Which macromolecule is most likely involved?

Accepted Answer

Lipids

Question 12

Which of the following is a difference between DNA and RNA?

Accepted Answer

DNA contains deoxyribose sugar, while RNA contains ribose sugar.

Question 13

Which of the following is a function of proteins in living organisms?

Accepted Answer

Catalyzing biochemical reactions as enzymes

Question 14

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

Accepted Answer

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

Question 15

A researcher observes a cell under a transmission electron microscope and notes the presence of mitochondria and a nucleus. What type of cell is being observed?

Accepted Answer

Eukaryotic cell

Question 16

Which cytoskeletal structure is primarily responsible for cell movement and the separation of chromosomes during cell division?

Accepted Answer

Microtubules

Question 17

Which of the following is a correct comparison between plant and animal cells?

Accepted Answer

Plant cells have chloroplasts, while animal cells do not.

Question 18

Which of the following is a function of the mitochondria in eukaryotic cells?

Accepted Answer

Energy production through cellular respiration

Question 19

Which of the following best describes the role of buffers in biological systems?

Accepted Answer

Buffers maintain a stable pH by neutralizing added acids or bases.

Question 20

A solution has a pH of 5. What is the concentration of hydrogen ions $[H^+]$ in the solution?

Accepted Answer

$[H^+] = 1 	imes 10^{-5}$ M

General Biology Study Guide: Syllabus and Core Concepts

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