C-SCIE1101 Module 1 Assessment

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Question 1 of 25

1. Question
1 point(s)
Which of the following questions lends itself to investigation using the scientific method (select all that apply)?
- Is macaroni and cheese tastier than broccoli soup?
- Are hummingbirds attracted to the color red?
- Is the moon made out of green cheese?
- Is plagiarism dishonest?
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Question 2 of 25

2. Question
1 point(s)
A situation is given below where the scientific method could be applied to an everyday situation. Arrange the given steps in the correct order

1. Why doesn’t the car start? Is there an issue with the battery?

2. Car doesn’t start

3. After changing the battery, the car starts working

4. The car should start after charging the battery or changing the battery

5. The car doesn’t start because the battery is dead

6. The car doesn’t start even after charging the battery; the battery must be dead
- 2, 1, 5, 4, 6, 3
- 1, 2, 3, 4, 5, 6
- 2, 1, 3, 4, 5, 6
- 2, 1, 5, 6, 3, 4
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Question 3 of 25

3. Question
1 point(s)
Which of the following contains two topics that are likely to be studied by biologists and two areas of study that fall outside the realm of biology?
- diseases affecting humans, pollution affecting species habitat, calculating surface area of rectangular ground, functioning of planetary orbitals
- calculating surface area of rectangular ground, functioning of planetary orbitals, formation of metamorphic rocks, galaxy composition
- plant responses to external stimuli, functioning of planetary orbitals, formation of metamorphic rocks, galaxy composition
- plant responses to external stimuli, study of the shape and motion of physical objects, formation of metamorphic rocks, galaxy composition
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Question 4 of 25

4. Question
1 point(s)
Which example most clearly shows a way that humans can respond directly to a change in the environment?
- We shiver when we are cold and sweat when we are hot
- We walk by putting our front leg forward and pushing off with our back leg
- We are able to breathe in and out unconsciously
- Our hair and fingernails grow at a constant rate over time
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Question 5 of 25

5. Question
1 point(s)
Which of the following is in order from smallest level of organization/complexity to highest level of organization/complexity?
- hydrogen atom, water molecule, skin cell, liver, elephant, wolf pack, tropical rainforest, planet earth
- hydrogen atom, skin cell, water molecule, liver, elephant, wolf pack, tropical rainforest, planet earth
- hydrogen atom, skin cell, water molecule, liver, wolf pack, elephant, tropical rainforest, planet earth
- water molecule, hydrogen atom, skin cell, liver, elephant, wolf pack, tropical rainforest, planet earth
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Question 6 of 25

6. Question
1 point(s)
Which of the following areas of study in biology cannot consistently use the scientific method?
- evolutionary biology
- cellular biology
- genetics
- anatomy and physiology
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Question 7 of 25

7. Question
1 point(s)
What is the difference between a carbon-12 atom and a carbon-13 atom?
- a carbon-12 atom has 6 neutrons, whereas a carbon-13 atom has 7 neutrons
- a carbon-12 atom has 12 neutrons, whereas a carbon-13 atom has 13 neutrons
- a carbon-12 atom has 12 protons, whereas a carbon-13 atom has 13 protons
- a carbon-12 atom has 6 protons, whereas a carbon-13 atom has 7 protons
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Question 8 of 25

8. Question
1 point(s)
How are ionic bonds different from covalent bonds?
- ionic bonds involve the transfer of electrons whereas covalent bonds involve the sharing of electrons
- ionic bonds involve the van der Waals force of interaction whereas covalent bonds involve the sharing of electrons
- ionic bonds involve the sharing of electrons whereas covalent bonds involve the transfer of electrons
- ionic bonds involve the transfer of electrons whereas covalent bonds involve the van der Waals force of interaction
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Question 9 of 25

9. Question
1 point(s)
One of the risks for people with diabetes is ketoacidosis, a build-up of acid in the blood stream. Why is this dangerous to humans?
- large amounts of acid in the blood overwhelms the blood buffer and lowers the pH of blood to dangerous levels
- large amounts of acid in the blood overwhelms the blood buffer and increases the pH of blood to dangerous levels
- large amounts of acid in the blood keeps the pH of blood constant which disrupts biological processes
- large amounts of acid in the blood reduces water’s heat of vaporization which impacts the body’s ability to regulate its temperature
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Question 10 of 25

10. Question
1 point(s)
What property of water is primarily responsible for plants’ ability to move up against gravity from the roots to the rest of the plant?
- adhesion
- low heat of vaporization
- cohesion
- solid less dense than liquid
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Question 11 of 25

11. Question
1 point(s)
What property of water is primarily responsible for the ability of some insects to walk on water?
- cohesion
- adhesion
- low heat of vaporization
- solid less dense than liquid
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Question 12 of 25

12. Question
1 point(s)
Which of the following statements is false?
- to be enantiomers, a molecule must have at least 3 different atoms or groups connected to a central carbon
- molecules with the formulas CH₃CH₂COOH and C₃H₆O₂ could be structural isomers
- molecules must have a double bond to be cis-trans isomers
- to be enantiomers, molecules must be non-superimposable mirror images of one another
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Question 13 of 25

13. Question
1 point(s)
What property of the carboxyl group makes it hydrophilic? Which macromolecules contain carboxyl groups?
- carboxyl groups release hydrogen cations, making its parent molecule hydrophilic; it is found in amino acids and fatty acids
- carboxyl groups absorb hydrogen cations, making its parent molecule hydrophilic; it is found in phospholipids and triglycerides
- carboxyl groups release hydroxide anions, making its parent molecule hydrophilic; it is found in phospholipids and triglycerides
- carboxyl groups release hydroxide anions, making its parent molecule hydrophilic; it is found in phospholipids and DNA
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Question 14 of 25

14. Question
1 point(s)
Cellulose and starch are examples of:
- polysaccharides
- monosaccharides
- lipids
- disaccharides
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Question 15 of 25

15. Question
1 point(s)
Which of the following bodily processes would most likely be hindered by a lack of water in the body?
- digestion (breaking down biomolecular polymers into monomers)
- protein synthesis (formation of peptide bonds)
- copying DNA (coupling nucleotides)
- breathing
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Question 16 of 25

16. Question
1 point(s)
Which of the following is NOT a role that carbohydrates play in biological systems?
- main component of cell membranes
- source of energy
- major component of insect exoskeletons
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Question 17 of 25

17. Question
1 point(s)
How do saturated and unsaturated fats compare?
- saturated fats contain only single bonds and are solids at room temperature, while unsaturated fats contain double bonds and are liquids at room temperature
- saturated fats contain double bonds and are solids at room temperature, while unsaturated fats contain only single bonds and are liquids at room temperature
- saturated fats contain double bonds and are liquids at room temperature, while unsaturated fats contain only single bonds and are solids at room temperature
- saturated fats contain only single bonds and are liquids at room temperature, while unsaturated fats contain double bonds and are solids at room temperature
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Question 18 of 25

18. Question
1 point(s)
Which of the following is most accurate concerning phospholipids?
- they are macromolecules that have both a hydrophobic component and a hydrophilic component
- they are hydrophobic macromolecules
- they are hydrophilic macromolecules
- they are sometimes hydrophobic macromolecules and sometimes hydrophilic macromolecules
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Question 19 of 25

19. Question
1 point(s)
Which of the following is NOT an example of lipid use in biological systems?
- cell nucleus
- long-term energy stores
- plasma membranes
- precursors to bile salts and hormones
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Question 20 of 25

20. Question
1 point(s)
Which categories of amino acids would you expect to find on the surface of a protein that is soluble in water, and which would you expect to find in the interior?
- polar and charged amino acids on the surface; non-polar amino acids in the interior
- non-polar amino acids on the surface; polar and charged amino acids in the interior
- polar and non-polar on amino acids on the surface; charged amino acids in the interior
- non-polar amino acids both on the surface and in the interior
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Question 21 of 25

21. Question
1 point(s)
How do the differences in amino acid sequence lead to different protein functions?
- different amino acids provide different geometric configurations via intramolecular interactions which leads to different functions
- the amino acids rearrange themselves in a varied sequence after the protein is synthesized
- the intermediate amino acid gets digested in subsequent modifications which produces varied proteins with varied functions
- all amino acid sequences lead to the same geometric configurations but different locations of the proteins, which leads to different functions
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Question 22 of 25

22. Question
1 point(s)
What causes the changes in protein structure through the three or four levels of structure?
- the primary chain forms secondary alpha-helix and beta-pleated sheets which fold onto each other forming the tertiary structure
- the primary structure undergoes alternative splicing to form secondary structures, which fold on other protein chains to form tertiary structures
- the primary structure forms secondary alpha-helix and beta-pleated sheets which undergo the chemical changes of phosphorylation and acetylation to form the tertiary structure
- the primary structure undergoes alternative splicing to form secondary structure, and then disulfide bonds give way to tertiary structures
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Question 23 of 25

23. Question
1 point(s)
Which molecule carries information in a form that is inherited from one generation to another?
- hereditary information is stored in DNA
- hereditary information is stored in proteins
- hereditary information is stored in RNA
- hereditary information is stored in lipids
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Question 24 of 25

24. Question
1 point(s)
Which of the following is NOT a difference between DNA and RNA?
- DNA is composed of nucleic acid monomers whereas RNA is composed of amino acid monomers
- DNA remains in the nucleus whereas RNA leaves the nucleus
- DNA and RNA have different sugar components in their backbone
- DNA contains the pyrimidine thymine whereas RNA contains the pyrimidine uracil instead
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Question 25 of 25

25. Question
1 point(s)
How does information flow in an organism proceed?
- from DNA to RNA to protein
- from RNA to DNA to protein
- from protein to RNA to DNA
- from protein to DNA to RNA
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C-SCIE1101 Module 1 Assessment

C-SCIE1101 Module 1 Assessment

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