Question 1

Which of the following best describes the role of nucleic acids in the molecular origin and evolution of life?

Accepted Answer

They store and transmit genetic information essential for inheritance and evolution.

Question 2

A scientist discovers a new organism whose cells contain both a nucleus and membrane-bound organelles. According to the classification of life, this organism is most likely a(n):

Accepted Answer

Eukaryote

Question 3

Which equation correctly represents the process of photosynthesis?

Accepted Answer

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

Question 4

During cellular respiration, which organelle is primarily responsible for ATP production in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 5

Which of the following best illustrates the concept of natural selection as described in evolutionary theory?

Accepted Answer

Traits that increase survival and reproduction become more common in a population over generations.

Question 6

A cell is observed to have a high concentration of rough endoplasmic reticulum. What is the most likely function of this cell?

Accepted Answer

Protein synthesis for export

Question 7

Which of the following statements about enzymes is correct?

Accepted Answer

Enzymes lower the activation energy required for reactions.

Question 8

Which process is responsible for the genetic variation observed in sexually reproducing populations?

Accepted Answer

Meiosis

Question 9

A patient is diagnosed with a disorder affecting the phospholipid bilayer of their cells. Which cellular function is most likely to be impaired?

Accepted Answer

Selective transport of substances across the cell membrane

Question 10

Which of the following is a correct statement about the central dogma of molecular biology?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 11

Which of the following best explains why viruses are not classified as living organisms?

Accepted Answer

They lack cellular structure and cannot carry out metabolism on their own.

Question 12

Which of the following equations correctly represents aerobic cellular respiration?

Accepted Answer

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

Question 13

A mutation occurs in the gene responsible for the synthesis of an enzyme involved in glycolysis. What is the most likely consequence for the cell?

Accepted Answer

Reduced ability to produce ATP from glucose

Question 14

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

Accepted Answer

Translation of mRNA into proteins

Question 15

A researcher is studying the evolutionary relationship between bacteria and archaea. Which method would be most appropriate for constructing a phylogenetic tree?

Accepted Answer

Analyzing similarities in their DNA sequences

Question 16

Which of the following is a direct result of crossing over during meiosis?

Accepted Answer

Increased genetic diversity in gametes

Question 17

A population of insects is exposed to a pesticide. Over several generations, most individuals become resistant. Which evolutionary process is illustrated by this scenario?

Accepted Answer

Natural selection

Question 18

Which of the following best describes the function of carbohydrates in living organisms?

Accepted Answer

They provide a primary source of energy.

Question 19

Which process is responsible for the synthesis of new DNA molecules during cell division?

Accepted Answer

Replication

Question 20

A scientist is investigating the effect of temperature on enzyme activity. Which graph would best represent the relationship between temperature and enzyme activity?

Accepted Answer

A bell-shaped curve showing optimal activity at a specific temperature, with decreased activity at higher and lower temperatures.

BISC 1403 R07: General Biology I - Syllabus and Study Guide

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드