BIO 1110 (BIO1110) - Life Science – All Quizzes 1-13 Answered 100% Correctly | Latest Summer 2025/2026.

BIO 1110 - Life Science – All Quizzes 1-13 (Answered) Quiz 1 1. Biology can be organized into a hierarchy. Which of the following represents the lowest level in such a scheme? a. Tissues b. Cells c. Nucleus d. Organisms 2. Cells have all of the following structures or molecules except a. DNA b. Cell wall c. Plasma membrane d. Ribosomes 3. Energy is recycled while nutrients flow through an ecosystem a. True b. False 4. Scientific hypotheses must be testable and falsifiable a. True b. False 5. Which of the following is not a domain of life? a. Archaea b. Bacteria c. Plantae d. Eukarya 6. Which of the following is not an example of artificial selection? a. House cat b. Cauliflower c. Elephant d. Cow 7. Which of the following are decomposers in ecosystems? a. Animals b. Plants c. Fungi d. Seaweeds 8. A scientific theory is broader in scope than a hypothesis a. True b. False 9. Which of the following is not a base found in DNA? a. Guanine b. Thymine c. Uracil d. Cytosine 10. Which of the following cell types doesn’t have organelles? a. Mushroomb. BacteriaThis study source was downloaded by from CourseH on :23:17 GMT -05:00 Quiz 2 1. A base is a compound that releases hydrogen ions into a solution a. True b. False 2. If an element has an atomic number of 7 and an atomic number of 15 how many protons, neutrons, and electrons does it possess? a. 8 protons, 7 neutrons, and 8 electrons b. 7 protons, 8 neutrons, and 7 electrons c. 15 protons, 8 neutrons, and 8 electrons d. 7 protons, 8 neutrons, and 8 electrons 3. In an aqueous solution, which of the following is the solvent? a. Urea b. Sugar c. Water d. Salt 4. Water’s special properties due to hydrogen bonding include all of the following except a. Water molecules are cohesive b. Water molecules are less dense when frozen c. Water molecules are adhesive d. Water molecules cause temperatures to fluctuate 5. Which bond is characterized by the sharing of electrons? a. Ionic bond b. Covalent bond c. Hydrophobic interaction d. Hydrogen bond 6. Goiter is the result of a deficiency in a. Iron b. Iodine c. Fluorine d. Zinc 7. Two atoms that have the same number of protons but different numbers of neutrons are called isotopes a. True b. False 8. Which of the following chemical bonds is characterized by one atom stealing an electron from another atom which causes them to become ions with opposite charges and results in a bond being formed between them? a. Ionic bond b. Covalent bond c. Polar covalent bond d. Hydrogen bond 9. Water can absorb and store large amounts of heat without changing its own temperature because of the ability of water molecules to hydrogen bond with each otherThis study source was downloaded by from CourseH on :23:17 GMT -05:00 a. True b. False 10. A solution consists of a solvent that dissolves in a solute a. True b. FalseQuiz 3 1. Cholesterol is a precursor of the sex hormones in mammals a. True b. False 2. Glycogen is made entirely out of what molecule? a. Maltose b. Galactose c. Glucose d. Fructose 3. Beta-pleaded sheets and alpha helices are associated with protein a. Quaternary structure b. Secondary structure c. Primary structure d. Tertiary structure 4. The sequence of amino acids in a proteins referred to as its a. Secondary structure b. Primary structure c. Quaternary structure d. Tertiary structure 5. The monomer or building block of nucleic acids is the a. Nucleotide b. Monosaccharide c. Fatty acid d. Amino acid 6. Which of the following is the most abundant organic compound on Earth? a. Glycogen b. Cellulose c. Glucose d. Chitin 7. Fats are used for all of the following functions except a. Hormones b. Energy storage c. Cushioning d. Transport 8. Unsaturated fatty acids are found more in plants than animals and tend to be solid at room temperature a. True b. False 9. What is the storage form of glucose in animals? a. Starch b. Maltose c. Glycogen d. Sucrose10. Which of the following is not a component of DNA? a. Uracil b. Thymine c. Adenine d. cytosineQuiz 4 1. Where are proteins synthesized? a. Ribozymes b. Rough endoplasmic reticulum c. Lysosomes d. Golgi apparatus 2. Where does photosynthesis take place? a. Chloroplast b. Golgi apparatus c. Mitochondria d. Ribosome 3. Which of the following is not part of the endomembrane system? a. Smooth endoplasmic reticulum b. Golgi apparatus c. Vesicles d. Mitochondria 4. All of the following are composed of eukaryotic cells except... a. Plants b. Fungi c. Archaea d. Protists 5. All cells have a plasma membrane... a. True b. False 6. Which of the following structures do plants possess but animals don’t? a. Rough endoplasmic reticulum b. Mitochondria c. Nucleus d. Central vacuole 7. The organelle responsible for autophagy is the... a. Lysosome b. Golgi apparatus c. Mitochondria d. Peroxisome 8. All of the following are involved in cellular movement except a. Pseudopodia b. Flagella c. Thylakoids d. Cilia 9. Which of the following are the main components of plasma membranes? a. Cell walls b. Cholesterol c. Phospholipidsd. Proteins 10. The nucleolus is the area of the nucleus where ribosomal RNA is synthesized a. True b. FalseQuiz 5 1. A person walking down the street is an example of a. sedentary energy b. activation energy c. kinetic energy d. potential energy 2. Enzyme inhibitors that bind to the active site are called a. silencers b. competitive c. allosteric d. noncompetitive 3. The production of heat while exercising is an example of entropy. a. True b. False 4. Which of the following is not true regarding enzymes? a. they are fairly specific for their substrates b. they are consumed by the reaction they catalyze c. they speed up chemical reactions d. they are biological catalysts 5. Which of the following requires energy? a. active transport b. simple diffusion c. osmosis d. facilitated diffusion 6. If you compare a 20% salt solution to a 50% salt solution, the 20% salt solution is hypertonic. a. True b. False 7. The first law of thermodynamics says that a. energy is lost when an explosion occurs b. every energy conversion releases some randomized energy in the form of heat c. new energy is created when new galaxies are formed d. the amount of energy in the universe is constant 8. Which molecule is most commonly used for energy to perform cellular work? a. GTP b. ATP c. fat d. fructose 9. Enzymes reduce the activation energy required to get a reaction started. a. True b. False10. A substance moves from an area of higher concentration to an area of lower concentration, but requires a protein channel in order to do so. This is an example of a. facilitated diffusion b. osmosis c. active transport d. simple diffusionQuiz 6 Question 1 1 / 1 pts Plants use all of the following colors of light for photosynthesis except violet red blue green Question 2 1 / 1 pts The Calvin Cycle takes place in the thylakoid membranes. True False Question 3 1 / 1 pts The source of the oxygen produced by plants in photosynthesis is carbon dioxide glucose water NADPH Question 4 1 / 1 pts Which of the following is not a product of the light reactions of photosynthesis? NADPH oxygen sugar ATPQuestion 5 1 / 1 pts Which of the following is not an accessory pigment? carotenoids chlorophyll b beta-carotene chlorophyll a Question 6 1 / 1 pts All of the following molecules frequently enter or exit through stomata except carbon dioxide water vapor methane oxygen Question 7 1 / 1 pts In Engelmann's experiment, the bacteria populated areas of the alga exposed to light that allowed photosynthesis and the production of carbon dioxide. True False Question 8 1 / 1 pts Photorespiration in C3 plants that have the enzyme Rubisco is caused by the binding of Rubisco to water vapor nitrogen gas carbon dioxide oxygenQuestion 9 1 / 1 pts CAM plants avoid photorespiration by opening their stomata during the night and closing them during the day. True False Question 10 1 / 1 pts What is the primary product of photosynthesis? oxygen ATP carbon dioxide sugarQuiz 7 Question 1 1 / 1 pts Cytokinesis in animal cells requires the development of a cell plate. True False Question 2 1 / 1 pts During which phase of the cell cycle is DNA copied? G1 phase M phase S phase G2 phase Question 3 1 / 1 pts If an organism has a diploid number of 36, what is their haploid number? 9 18 48 72 Question 4 1 / 1 pts When does crossing over occur? anaphase I prophase I interphase prophase II Question 51 / 1 pts When do homologous chromosomes line up in pairs in the middle of the cell at the equatorial plane? metaphase I metaphase of mitosis metaphase II prophase I Question 6 1 / 1 pts Chromatin is composed of RNA and histones DNA and phospholipids DNA and protein RNA and carbohydrates Question 7 1 / 1 pts Which of the following is not haploid? sperm gamete zygote Egg Question 8 1 / 1 pts At the end of mitosis, there are 2 genetically identical daughter cells. True False Question 9 1 / 1 ptsDuring what phase of meiosis can nondisjunction occur? prophase I telophase II anaphase I metaphase II Question 10 1 / 1 pts The incidence of Down syndrome increases with the age of the mother. True FalseQuiz 8 Question 1 1 / 1 pts If a color blind woman marries a man with normal vision, which of the following outcomes is not possible for their offspring? a son who is a carrier of the color blind allele a daughter who is a carrier of the color blind allele a color blind daughter a color blind son Question 2 1 / 1 pts If a man who is heterozygous for blood type A marries a woman who is heterozygous for blood type B, what is the predicted phenotypic ratio of their offspring? 3 type A: 1 type B 1 type A: 1 type B: 1 type O: 1 type AB all type AB 2 type A: 2 type B Question 3 1 / 1 pts If red flowering snapdragons are crossed with white flowering snapdragons, what would be the expected phenotypic ratio of the offspring? all red all pink 1 red: 2 pink: 1 white 1 pink: 2 red: 1 white Question 4 1 / 1 ptsPurple flower color is dominant to white flower color. If pure-breeding purple flowering plants are crossed with pure-breeding white flowering plants, what would be the predicted phenotypic ratio of the offspring? 3 purple: 1 white 3 white: 1 purple all white all purple Question 5 1 / 1 pts Sickle cell disease is an example of epistasis. True False Question 6 1 / 1 pts What is the explanation for recombinant phenotypes in Morgan's fruit fly experiment? law of independent assortment random fertilization crossing over law of segregation Question 7 1 / 1 pts Traits that show polygenic inheritance usually have a Gaussian or normal distribution. True False Question 8 1 / 1 pts The ABO blood groups are an example of codominanceincomplete dominance epistasis pleiotropy Question 9 1 / 1 pts Which of the following is a dominant autosomal disorder? sickle cell disease phenylketonuria (PKU) cystic fibrosis Huntington's disease Question 10 1 / 1 pts Linked genes are located far apart on the same chromosome. True FalseQuiz 9 Question 1 1 / 1 pts Mutations that change an amino acid codon to a stop codon are called missense silencing deletions nonsense Question 2 1 / 1 pts The genetic code is redundant and ambiguous. True False Question 3 1 / 1 pts The molecule that brings amino acids to the ribosome for translation is tRNA rRNA mRNA RNA polymerase Question 4 1 / 1 pts All of the following bases are found in RNA except cytosine guanine adenine thymine Question 51 / 1 pts Where can translation occur in a cell? nucleus peroxisome rough endoplasmic reticulum golgi apparatus Question 6 1 / 1 pts If the anticodon is AUA, what is the codon? UUU TAT UAU ATA Question 7 1 / 1 pts The anticodon is found in mRNA. True False Question 8 1 / 1 pts Which base is found paired with cytosine in the DNA double helix? uracil adenine thymine guanine Question 9 1 / 1 pts Which of the following is not true regarding DNA?in the double helix, uracil is always paired with adenine it has a negative charge the two DNA strands are antiparallel it has a sugar-phosphate backbone Question 10 1 / 1 pts Transcription takes place in the nucleus. True FalseQuiz 10 Question 1 1 / 1 pts Which of the following acts as an on/off switch in the lac operon? repressor enhancer promoter operator Question 2 1 / 1 pts Which of the following is not a part of RNA processing or regulation? controlling the amount of time an mRNA can exist splicing introns together adding a tail adding a cap Question 3 1 / 1 pts If you see a tortoiseshell cat, you can be pretty sure that it is a male. True False Question 4 1 / 1 pts Which of the following is not a type of post-translational modification or regulation? cutting a polypeptide into a smaller, active final product adding a sugar to a polypeptide alternative RNA splicing adding a lipid to a polypeptide Question 51 / 1 pts Adult stem cells can give rise to any of the cell types in an organism. True False Question 6 1 / 1 pts What is required to turn the lac operon on? presence of lactose DNA polymerase presence of glucose lac repressor Question 7 1 / 1 pts Which of the following is an epigenetic mechanism for turning genes off? DNA methylation enhancers lac repressor protein post transcriptional modification Question 8 1 / 1 pts Humans are able to create more polypeptides from a single gene through alternative splicing of exons. True False Question 9 1 / 1 pts Which of the following downregulates gene expression by binding to complementary sequences on mRNA molecules?tRNAs enhancers microRNAs transcription factors Question 10 1 / 1 pts Dolly was created by removing the nucleus from an egg cell, and then transplanting a nucleus from a different adult cell into the enucleated egg. True FalseQuiz 11 Question 1 1 / 1 pts Let p represent the dominant allele for a trait and q represent the recessive allele for that trait. If the frequency of q is 0.2, then what would be the frequency of the heterozygotes in the population? 0.32 0.64 0.04 0.16 Question 2 1 / 1 pts Natural selection is the mechanism for evolution. True False Question 3 1 / 1 pts Which of the following is not a prezygotic barrier? reduced hybrid fertility temporal isolation habitat isolation behavioral isolation Question 4 1 / 1 pts Which of the following tends to reduce the differences between populations? bottleneck effect gene flow natural selectionfounder effect Question 5 1 / 1 pts Similarity of structures due to common ancestry is called neoteny analogy paedomorphosis homology Question 6 1 / 1 pts The distribution of marsupials in Australia and on the east side of the Wallace line is best explained by biogeography. True False Question 7 1 / 1 pts Darwin would agree that giraffes stretched their necks to reach leaves high in trees and then passed their long necks to their offspring. True False Question 8 1 / 1 pts The smallest biological unit that can evolve is the individual. True False Question 9 1 / 1 pts Modern horses are larger than ancestral horses. This is an example ofstabilizing selection disruptive selection sexual selection directional selection Question 10 1 / 1 pts Sexual dimorphism in birds often results in females that are more brightly colored than males. True FalseQuiz 12 Question 1 1 / 1 pts A structure that evolves in one context but becomes adapted for another function is an example of neoteny exaptation paedomorphosis evo-devo Question 2 1 / 1 pts Convergent evolution is the result of homology. True False Question 3 1 / 1 pts The biological species concept works well with all of the following except mammals bacteria insects flowering plants Question 4 1 / 1 pts Which of the following is a common cause of sympatric speciation in plants? isolation due to a mountain range separation by a river polyploidy fragmentation due to plate tectonicsQuestion 5 1 / 1 pts Similarity of structures due to common ancestry is called analogy neoteny paedomorphosis homology Question 6 1 / 1 pts Which of the following is not a prezygotic barrier? reduced hybrid fertility habitat isolation behavioral isolation temporal isolation Question 7 1 / 1 pts If the growth rate of a population decreases as the population size approaches the carrying capacity, the population growth is described as logistic exponential spiraling logarithmic Question 8 1 / 1 pts Which of the following is not a density-dependent factor? earthquake competition predationtoxic waste accumulation Question 9 1 / 1 pts Which of the following organisms has an equilibrial life history? fruit fly elephant dandelion oyster Question 10 1 / 1 pts The type of survivorship curve that corresponds to organisms that have a hard time surviving at the start of life is Type IV Type II Type I Type IIIQuiz 13 Question 1 1 / 1 pts Which of the following relationships has a negative impact on both species? predation herbivory parasitism competition Question 2 1 / 1 pts Which of the following is an example of a keystone species? mussel sea star kelp sea urchin Question 3 1 / 1 pts The scarlet king snake and the coral snake are examples of cryptic coloration. True False Question 4 1 / 1 pts If a human is able to incorporate 500 kcal of beef into their biomass, how many kcal of corn did the cow have to eat for this to occur?. Assume that the energy transfer efficiency is 10%. 5,000 kcal 500,000 kcal 50,000 kcal 500 kcalQuestion 5 1 / 1 pts An ecological niche is an organism's total use of only the biotic resources in its environment. True False Question 6 1 / 1 pts If nitrogen-fixing bacteria in the soil attach to the roots of a plant and consume the sugar produced by the plant through photosynthesis, the best description of this relationship is competition predation parasitism mutualism Question 7 1 / 1 pts Which component of the food chain is found in the greatest amount and supports the rest of the species in the food chain? tertiary consumers primary producers primary concumers secondary consumers Question 8 1 / 1 pts Which of the following is an example of a primary consumer? grass snake sea otter grasshopperQuestion 9 1 / 1 pts Which class of organisms are responsible for recycling nutrients by converting organic materials into inorganic forms? scavengers decomposers primary producers detritivores Question 10 1 / 1 pts The concentration of increasing amounts of toxins in species higher in food chains is called biological magnification. True False