Q: Which equation correctly represents the process of photosynthesis?

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

Question 1

Which of the following best describes the difference between a scientific theory and a scientific hypothesis?

Accepted Answer

A scientific theory is a broad explanation supported by a large body of evidence, while a hypothesis is a specific, testable prediction.

Question 2

Which of the following molecules is NOT considered a macromolecule essential for life?

Accepted Answer

Glucose

Question 3

A patient is diagnosed with a genetic disorder caused by a mutation in the gene encoding an enzyme involved in cellular respiration. Which organelle is most likely affected?

Accepted Answer

Mitochondrion

Question 4

Which equation correctly represents the process of 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 5

A population of beetles is exposed to a pesticide. After several generations, most beetles are resistant to the pesticide. Which evolutionary mechanism best explains this observation?

Accepted Answer

Natural selection

Question 6

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

Accepted Answer

They synthesize proteins by translating mRNA.

Question 7

Which of the following is an example of allopatric speciation?

Accepted Answer

A river forms and divides a population of squirrels, leading to the evolution of two distinct species.

Question 8

Which of the following is the correct order of taxonomic classification from most inclusive to least inclusive?

Accepted Answer

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

Question 9

Which of the following statements about prokaryotes is TRUE?

Accepted Answer

They lack membrane-bound organelles.

Question 10

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

Accepted Answer

Water will leave the cell, causing it to plasmolyze.

Question 11

Which of the following best explains why antibiotics are generally ineffective against viral infections?

Accepted Answer

Viruses lack the cellular structures targeted by antibiotics.

Question 12

Which of the following is a function of the xylem in plants?

Accepted Answer

Transporting water and minerals from roots to leaves

Question 13

Which of the following equations represents aerobic 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 14

Which of the following best describes the function of the human small intestine?

Accepted Answer

It is the primary site for nutrient absorption.

Question 15

A population of rabbits in a meadow increases from 100 to 400 individuals in 5 years. Assuming exponential growth, which equation can be used to estimate the population size at time $$t$$?

Accepted Answer

$$N_t = N_0$ e$$^{rt}$$

Question 16

Which of the following is an example of a density-dependent factor regulating population growth?

Accepted Answer

Competition for food

Question 17

Which of the following best describes the role of decomposers in an ecosystem?

Accepted Answer

They break down dead organic matter, recycling nutrients back into the ecosystem.

Question 18

A scientist observes that a certain plant species only flowers when exposed to more than 12 hours of darkness each night. This is an example of which type of biological response?

Accepted Answer

Photoperiodism

Question 19

Which of the following best explains why amphibians are considered good indicators of ecosystem health?

Accepted Answer

Their permeable skin makes them sensitive to environmental changes and pollutants.

Question 20

Which of the following scenarios best illustrates the concept of gene flow?

Accepted Answer

A few wolves migrate from one population to another, introducing new alleles.

Comprehensive Study Notes: General Biology Concepts & Connections

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드