Check How Much You Can Score In This Biology Quiz?
The study of biology can be mind-blowing if you allow yourself to be immersed in it – after all, this branch of scientific research allows us to know more about life and the world around us. Whether it’s the animals we all know and love or the plant life that makes our world a little greener. Do you think you know enough about biology to answer all of the following questions? Let’s find out!
- 1.
Which type of cell lacks a membrane surrounding its genetic material?
- A.
Bacteria
- B.
Plant
- C.
Animal
- D.
Eukaryotic
- E.
Fungus
Correct Answer
A. BacteriaExplanation
Bacteria and Archaea are unicellular prokaryotes that lack a nucleus.Rate this question:
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- 2.
What is the major component of biological membranes?
- A.
Proteins
- B.
Nucleic acids
- C.
Carbohydrates
- D.
Lipids
- E.
Water
Correct Answer
D. LipidsExplanation
Lipids are the major component of biological membranes. They form a lipid bilayer that acts as a barrier, separating the inside of the cell or organelle from the external environment. Lipids are hydrophobic molecules, meaning they repel water, making them ideal for creating a barrier that controls the passage of substances in and out of the cell. Additionally, lipids also play a crucial role in cell signaling and membrane fluidity.Rate this question:
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- 3.
A pea plant has genetic instructions to be tall and short, but only expresses the tall phenotype. This plant can be described as:
- A.
Homozygous
- B.
Hybrid
- C.
True-breeding
- D.
Self-pollinating
- E.
Cross-pollinating
Correct Answer
B. HybridExplanation
Hybrids have two different sets of instructions and are also known as being heterozygous.Rate this question:
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- 4.
DNA is our genetic material. Which scientist discovered that it was a long, twisting helix?
- A.
Watson & Crick
- B.
Avery
- C.
Franklin
- D.
Chargaff
- E.
Mendel
Correct Answer
C. FranklinExplanation
Rosalind Franklin realized that DNA was a helix using X-ray crystallography.Rate this question:
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- 5.
Which type of cellular transport must always move particles out of a cell?
- A.
Osmosis
- B.
Exocytosis
- C.
Active transport
- D.
Diffusion
- E.
Metabolism
Correct Answer
B. ExocytosisExplanation
EXOcytosis causes materials to EXIT the cell. Osmosis, active transport, and diffusion move in either direction. Metabolism is much more than just movement of paricles.Rate this question:
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- 6.
During mitosis, the DNA in a cell is found as:
- A.
Chromatin
- B.
Spindle fibers
- C.
Chromosomes
- D.
Punnett squares
Correct Answer
C. ChromosomesExplanation
During mitosis, the DNA is moving around so it must be wrapped up tightly as chromosomes.Rate this question:
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- 7.
The cellular location where protein synthesis occurs:
- A.
Ribosomes
- B.
Golgi complex
- C.
Nucleus
- D.
Mitochondria
- E.
Lysosome
Correct Answer
A. RibosomesExplanation
Proteins are made of amino acids that are joined together at ribosomes. mRNA carries the instructions transcribed from DNA's gene, then tRNA's read the codons and add the amino acids.Rate this question:
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- 8.
Which of these is NOT a reactant in photosynthesis?
- A.
Sunlight
- B.
Carbon dioxide
- C.
Glucose
- D.
Water
Correct Answer
C. GlucoseExplanation
Glucose is made (a product) not used (a reactant) during photosynthesis.Rate this question:
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- 9.
Which of these is a product of cellular (aerobic) respiration?
- A.
Glucose
- B.
Oxygen
- C.
Adenosine triphosphate
- D.
Deoxyribonucleic acid
Correct Answer
C. Adenosine triphosphateExplanation
ATP is the main product of cellular respiration. CO2 and H2O are also products.Rate this question:
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- 10.
The sum of all chemical reactions that occur in an organism:
- A.
Homeostasis
- B.
Metabolism
- C.
Stimulus
- D.
Mitosis and Meiosis
- E.
Reproduction
Correct Answer
B. MetabolismExplanation
Everything that any cell (or any organism) does to stay alive is part of its metabolism.Rate this question:
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- 11.
Heterotrophs depend on autotrophs. Why?
- A.
Autotrophs reproduce and make heterotrophs.
- B.
Autotrophs keep the heterotroph populations from growing too large.
- C.
Autotrophs decompose dead organisms so the nutrients can be recycled.
- D.
Autotrophs capture sunlight and store it in carbohydrates.
Correct Answer
D. Autotrophs capture sunlight and store it in carbohydrates.Explanation
Remember, autotroph is a producer and heterotroph is a consumer. All life depends on producers.Rate this question:
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- 12.
Which of these is not one of the most common elements in biological molecules?
- A.
Phosphorus
- B.
Sulfur
- C.
Sodium
- D.
Hydrogen
Correct Answer
C. SodiumExplanation
The S in CHNOPS is sulfur, not sodium (symbol Na).Rate this question:
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- 13.
The genetic code that is passed down from one generation to the next is "hidden" within:
- A.
Proteins
- B.
Amino acid sequences
- C.
CHNOPS
- D.
Nucleotides
Correct Answer
D. NucleotidesExplanation
The order of bases (or nucleotides) in DNA is what determines the order of amino acids in proteins. So the genetic code is really the order of G's, A's, T's, and C's.Rate this question:
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- 14.
Which is the longest phase of the eukaryotic cell cycle?
- A.
Mitosis
- B.
Binary Fission
- C.
Interphase
- D.
Meiosis
Correct Answer
C. InterphaseExplanation
Most of a eukaryotic cell's life is spent in interphase doing metabolic activities. At the end of interphase, the DNA replicates and mitosis begins.Rate this question:
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- 15.
In a controlled experiment, what factor changes from group to group?
- A.
The hypothesis
- B.
The variable
- C.
The constants
- D.
The conclusion
Correct Answer
B. The variableExplanation
Variables VARY (change) from group to group, while constants stay constant (or remain the same) within the groups.Rate this question:
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- 16.
The first person to see (and name) cells observed the walls of cork cells. Who was he?
- A.
Leeuwenhoek
- B.
Fleming
- C.
Hooke
- D.
Schleidon
- E.
Virchow
Correct Answer
C. HookeExplanation
Robert Hooke saw the little "rooms" in cork bark and called them "cells". Leeuwenhoek first saw bacteria and living cells. Schleidon realized all parts of plants are made of cells. Virchow concluded that cells come from other cells. Fleming discovered penicillan.Rate this question:
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- 17.
In a eukaryotic cell, which of these would NOT be found in the cytoplasm?
- A.
ATP
- B.
DNA
- C.
Enzymes
- D.
Amino acids
- E.
TRNA
Correct Answer
B. DNAExplanation
In eukaryotic cells, the DNA would be in the nucleus, not in the cytoplasm.Rate this question:
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- 18.
Which of these is not one of the six kingdoms of life?
- A.
Archaea
- B.
Fungi
- C.
Virus
- D.
Protist
Correct Answer
C. VirusExplanation
Viruses are NOT alive, and therefore, are not a kingdom.Rate this question:
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- 19.
Which of these is not one of the major problems plaguing our environment?
- A.
Pollution
- B.
Loss of biodiveristy
- C.
Overpopulation
- D.
Resource depletion
Correct Answer
C. OverpopulationExplanation
Overpopulation is a cause of other problems (like deforestation or loss of resources) but it in itself is not one of the "big three" issues.Rate this question:
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Nov 16, 2023Quiz Edited by
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May 08, 2009Quiz Created by
Rmorales
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