Updated Mar-2026 Test Engine to Practice Introduction-to-Biology Test Questions
Introduction-to-Biology Real Exam Questions Test Engine Dumps Training With 80 Questions
NEW QUESTION # 10
Glycolysis yields a net of two ATP molecules produced by phosphorylation. Which statement about the energy transformationin this process is true?
- A. Energy is created.
- B. Energy is transformed into a long-term storage form.
- C. Energy is destroyed.
- D. Energy is transformed into a form more useful for the cell.
Answer: D
NEW QUESTION # 11
Transcription of RNA from DNA occurs in whicheukaryotic organelle?
- A. Nucleus
- B. Golgi apparatus
- C. Chloroplast
- D. Endoplasmic reticulum
Answer: A
NEW QUESTION # 12
A cell is bounded by acell walland has an organelle that performsphotosynthesis. Which type of eukaryotic cell and organelle are described?
- A. Plant; chloroplast
- B. Animal; ribosome
- C. Both plant and animal; mitochondria
- D. Animal; Golgi apparatus
Answer: A
NEW QUESTION # 13
Cells use ATP to power muscle contraction. During contraction, ATP is converted to ADP and inorganic phosphate. What is happening to energy in this conversion?
- A. Energy is being stored.
- B. Energy is being destroyed.
- C. Energy is being released.
- D. Energy is being created.
Answer: C
NEW QUESTION # 14
Arctic foxes sometimes follow polar bears and scavenge leftovers after the bears finish eating. What interaction occurs?
- A. Parasitism
- B. Herbivory
- C. Commensalism
- D. Predation
Answer: C
NEW QUESTION # 15 
Using theTetrapod Cladogram (Node E), the common ancestor at locationEgives rise to which two organisms?(Choose 2 answers)
- A. Lizard
- B. Gorilla
- C. Salamander
- D. Tiger
Answer: B,D
NEW QUESTION # 16
During whichphase of mitosisare the replicated chromosomessplitand the daughter chromosomesmoved to opposite poles?
- A. Anaphase
- B. Metaphase
- C. Telophase
- D. Prophase
Answer: A
NEW QUESTION # 17
Individuals of two distinct squirrel species live on the same campus and forage on similar foods year-round.
What relationship is this an example of?
- A. Commensalism
- B. Herbivory
- C. Competition
- D. Predation
Answer: C
NEW QUESTION # 18
Agroup of lionsthat preys on deer constitutes which ecological level?
- A. Ecosystem
- B. Population
- C. Biome
- D. Community
Answer: B
NEW QUESTION # 19
Which chromosomal set shows an abnormality most commonly associated with agenetic disorder?
- A. Trisomy21
- B. XYY
- C. XX
- D. Trisomy18
Answer: A
NEW QUESTION # 20
Which statement istrueabout the organisms on the vertebrate cladogram?
- A. Amphibians are four-limbed species but lack a bony skeleton.
- B. Birds are the only species that produce eggs with shells.
- C. Sharks and rays have vertebrae but lack a bony skeleton.
- D. Only species with hair produce amniotic eggs.
Answer: C
NEW QUESTION # 21
Which statement istrueof aprokaryoticcell?
- A. It is one of the smallest living cells, has a cell wall, and contains a nucleoid region.
- B. It contains a nucleus and membrane-bound organelles.
- C. It contains a nucleus but lacks a cell wall.
- D. It is found in plants, has chloroplasts, and its DNA is in a nucleus.
Answer: A
NEW QUESTION # 22
Which is an example of acovalent bond?
- A. One hydrogen atom transfers its electron to another atom
- B. A weak electrostatic attraction holds two hydrogen atoms together
- C. Two hydrogen atoms each share their single electrons with one another
- D. Two hydrogen nuclei fuse to form a single molecule
Answer: C
NEW QUESTION # 23
Which organisms havefour limbsand produceeggs that are not amniotic?
- A. Sharks and rays
- B. Birds
- C. Crocodilians
- D. Amphibians
Answer: D
NEW QUESTION # 24
What is a primary characteristic ofperipheral membrane proteins?
- A. Detergents or nonpolar solvents are necessary to remove them from the membrane.
- B. Weak intermolecular forces keep them attached to the lipid membrane.
- C. They cannot be post-translationally modified.
- D. They span the entire lipid bilayer, sometimes multiple times.
Answer: B
NEW QUESTION # 25
What is the correctorderof the major events inDNA replication?
- A. Synthesis of a complementary strand # unwinding the DNA # joining the two DNA strands
- B. Joining the two DNA strands # synthesis of a complementary strand # unwinding the DNA
- C. Unwinding the DNA # synthesis of a complementary strand # joining the two DNA strands
- D. Unwinding the DNA # joining the two DNA strands # synthesis of a complementary strand
Answer: C
NEW QUESTION # 26
Using theTetrapod Cladogram (Node E)and standard vertebrate traits, whichtwo character statesare shared byboth Tiger and Gorilla?(Choose 2 answers)
- A. Fur
- B. Loss of tail
- C. Three middle ear bones
- D. Jaw
Answer: A,C
NEW QUESTION # 27
A gardener performs amonohybrid crosson twoheterozygousorange-fruited tomato plants. Therecessive phenotypeis yellow fruit. What percentage of offspring will produceyellowtomatoes?
- A. 75%
- B. 100%
- C. 25%
- D. 50%
Answer: C
NEW QUESTION # 28
Coral reefs include many living (biotic) species interacting withabioticfactors like oxygen, water, soil, CO#, and light. Which part of the biosphere do coral reefs represent?
- A. Ecosystem
- B. Organism
- C. Population
- D. Community
Answer: A
NEW QUESTION # 29
Ocean acidification dissolves calcium-based exoskeletons of purple sea urchins. Some individuals have a trait making their exterior more acid-resistant. If acidification increases, how is this population most likely to evolve?
- A. Longer, more rigid spines become more common
- B. Less acid-resistant exoskeletons become more common
- C. Shorter, more flexible spines become more common
- D. Acid-resistant exoskeletons become more common
Answer: D
NEW QUESTION # 30
Chocolate is produced when yeasts, bacteria, and molds break down sugars in cacao beanswithout oxygen, yielding alcohols/acids and a small amount of ATP. Which metabolic process is occurring?
- A. Photosynthesis
- B. Aerobic respiration
- C. Fermentation
- D. Cellular respiration
Answer: C
NEW QUESTION # 31
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