Question 1

Which of the following is NOT a shared characteristic of all living organisms?

Accepted Answer

Ability to move independently

Question 2

A scientist observes that a certain plant grows faster when exposed to blue light compared to red light. Which step of the scientific method is this observation most closely associated with?

Accepted Answer

Making an observation

Question 3

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

Accepted Answer

Eukaryotic cells have a nucleus; prokaryotic cells do not.

Question 4

Which of the following equations correctly represents the process of photosynthesis?

Accepted Answer

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

Question 5

A student is examining an onion root tip under a microscope. Which phase of mitosis is characterized by chromosomes aligning at the cell's equator?

Accepted Answer

Metaphase

Question 6

Which of the following is a correct statement about the structure of the cell membrane?

Accepted Answer

It is composed mainly of a phospholipid bilayer with embedded proteins.

Question 7

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

Accepted Answer

Enzymes act as catalysts to speed up chemical reactions.

Question 8

A couple has a child with cystic fibrosis, a recessive genetic disorder. If both parents are carriers, what is the probability that their next child will also have cystic fibrosis? Use a Punnett square to solve.

Accepted Answer

$$\frac{1}{4}$$

Question 9

Which of the following is a real-world example of genetic engineering?

Accepted Answer

Inserting a gene for pest resistance into corn plants

Question 10

Which of the following best explains how natural selection leads to adaptation in a population?

Accepted Answer

Favorable traits increase in frequency because they improve survival and reproduction.

Question 11

Which of the following is a correct application of the Hardy-Weinberg equation $$p^2 + 2pq$$ + $$q^2 = 1$?

Accepted Answer

Calculating the frequency of alleles in a population under no evolutionary forces

Question 12

Which of the following is an abiotic factor that can affect a freshwater ecosystem?

Accepted Answer

Water temperature

Question 13

Which organelle is responsible for producing ATP through cellular respiration in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 14

Which of the following best describes the main difference between plant and animal cell structure?

Accepted Answer

Plant cells contain chloroplasts; animal cells do not.

Question 15

Which of the following is a consequence of human impact on the world's ecosystems?

Accepted Answer

Habitat destruction leading to species extinction

Question 16

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

Accepted Answer

Synthesize proteins from mRNA templates

Question 17

A student measures the length of a specimen as 2.5 cm. What is this length in millimeters?

Accepted Answer

$$25 mm$$

Question 18

Which stage of animal development is characterized by a hollow ball of cells?

Accepted Answer

Blastula

Question 19

Which of the following is a correct statement about the flow of energy in an ecosystem?

Accepted Answer

Energy flows in one direction, from producers to consumers to decomposers.

Question 20

Which of the following best describes the process of DNA replication?

Accepted Answer

DNA is copied to produce two identical DNA molecules.

BIO-111 General Biology Lecture & Lab: Course Overview and Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards