Q: Which of the following equations correctly represents the process of cellular respiration?

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

Q: A plant is exposed to light, water, and carbon dioxide. Which equation best represents the process occurring in its chloroplasts?

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

Question 1

Which of the following best describes the central dogma of molecular biology?

Accepted Answer

Information flows from DNA to RNA to protein.

Question 2

A scientist is studying a cell that lacks membrane-bound organelles. Which of the following is most likely true about this cell?

Accepted Answer

It is a prokaryotic cell.

Question 3

Which of the following equations 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 4

A patient is diagnosed with a genetic disorder caused by a single nucleotide substitution in a gene. Which process most directly leads to the production of an altered protein in this scenario?

Accepted Answer

Translation

Question 5

Which of the following best explains why water is an excellent solvent for many biological molecules?

Accepted Answer

Water is polar and forms hydrogen bonds with polar molecules.

Question 6

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 7

A plant is exposed to light, water, and carbon dioxide. Which equation best represents the process occurring in its chloroplasts?

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 8

Which of the following scenarios best illustrates the concept of natural selection?

Accepted Answer

A population of bacteria exposed to antibiotics develops resistance over several generations.

Question 9

Which of the following statements about meiosis is correct?

Accepted Answer

Meiosis reduces the chromosome number by half.

Question 10

A cell is placed in a solution and swells until it bursts. What type of solution was the cell placed in, and what process caused this?

Accepted Answer

Hypotonic solution; osmosis

Question 11

Which of the following best describes the function of enzymes in biological systems?

Accepted Answer

Enzymes act as catalysts to speed up chemical reactions.

Question 12

A genetic cross between two heterozygous individuals for a single gene (Aa x Aa) results in which expected genotypic ratio among the offspring?

Accepted Answer

1:2:1

Question 13

Which of the following is a real-world example of the founder effect in evolution?

Accepted Answer

A small group of birds colonizes a new island, and their descendants show different allele frequencies than the original population.

Question 14

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

Accepted Answer

Their hydrophobic tails avoid water while their hydrophilic heads interact with water.

Question 15

A mutation in a gene results in a nonfunctional protein. Which level of protein structure is most likely affected by this mutation?

Accepted Answer

Primary structure

Question 16

Which of the following is an example of an anabolic pathway?

Accepted Answer

The synthesis of proteins from amino acids

Question 17

A researcher observes that a certain trait in pea plants follows Mendel's law of independent assortment. Which of the following best explains this observation?

Accepted Answer

The genes for the trait are located on different chromosomes.

Question 18

Which of the following best describes the Hardy-Weinberg equilibrium equation for a population with two alleles?

Accepted Answer

$$p^2 + 2pq$$ + $$q^2 = 1$

Question 19

A patient is found to have a disorder caused by a defect in the enzyme hexokinase, which catalyzes the first step of glycolysis. Which of the following is most likely to be directly affected in this patient?

Accepted Answer

The conversion of glucose to glucose-6-phosphate

Question 20

Which of the following scenarios best illustrates the concept of allopatric speciation?

Accepted Answer

A river divides a population of rodents, and over time, the two groups evolve into separate species.

BIOL 1033 General Biology I: Course Structure and Chapter Overview

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드