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Bio 107 Midterm 1 Review Questions and Answers (100% Pass)
- Vak
- Bio 107
- Instelling
- Washington State University - Pullman Campus
Bio 107 Midterm 1 Review Questions and Answers (100% Pass)
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©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Monday, July 29, 2024 12:15 PMBio 107 Midterm 1 Review Questions and Answers (100% Pass)
What does DNA stand for? - ✔️✔️Deoxyribonucleic acid
In what way is artificial selection different from natural selection? - ✔️✔️In artificial
selection, human preference is the selecting force; in natural selection, environmental
conditions are the selecting forces.
Which of the following is what scientists mean when they use the term theory? - ✔️✔️A
set of findings that are supported by repeated testing.
Who is responsible for the theory of evolution? - ✔️✔️Alfred Wallace, Charles Darwin
Which of the following is the best way to make a hypothesis? - ✔️✔️Making observations
about a pattern and then coming up with a prediction as to why that pattern is occurring.
What is the MAJOR difference between prokaryotes and eukaryotes? - ✔️✔️Membrane
bound organelles
Which of the following atoms has the greatest impact on biology due to its
electronegativity? - ✔️✔️Oxygen
Water plays a critical role in life, allowing many bonds to occur because of the partial
positive and partial negative charges on each atom in the molecule. Which interaction is
most often made with the partially negative charge on oxygen in water? - ✔️✔️Hydrogen
bond
In chemical reaction such as Na+Cl NaCl, what type of reaction and bond is described?
- ✔️✔️Ionic, Endothermic/Endergonic
Carbon forms bonds with a maximum of how many other atoms ? - ✔️✔️4
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,©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Monday, July 29, 2024 12:15 PM
Which of the following best describes why ionic molecules dissolve and dissociate in
water? - ✔️✔️Water is a polar, Covalently bounded substance
Which four elements make up 96% of matter found in living organisms? - ✔️✔️Hydrogen,
Carbon, Oxygen,Nitrogen
How do hydrophobic molecules react with water? - ✔️✔️Repelled by
Which term describe two atoms when they form a bond in which electrons are
completely transferred from one atom to the other? - ✔️✔️Anion and Cation
Covalent bonds_______? - ✔️✔️1. Are formed in order to fill the outer shells of atoms
2. Are formed when one atom shares it's electrons with another atom
3. Are stronger than non-covalent bonds
4. Store energy in their bonds
Which of the following hypotheses is NOT testable? - ✔️✔️Evolution is a result of the
intervention of God in the development of organisms
A theory is? - ✔️✔️An explanation for a set of observations that can be used to make
predictions and is well-supported by many tests.
Which of the following is what scientists mean when they use the term theory? - ✔️✔️A
set of findings that are supported by repeated testing
NaCl
Na atomic # is 11, mass is 22.990
Cl atomic # is 17, mass is 35.453
Answer the following questions for NaCl !
1. What type of bond do these molecules form?
2. How many protons does sodium (Na) have?
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, ©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Monday, July 29, 2024 12:15 PM
3. What is the atomic mass of this compound?
4. What is the atomic number for sodium (Na)? - ✔️✔️1. Ionic
2. 11
3. 58.44grams
4. 11
Chitin strengthens the structure of some? - ✔️✔️Insects/Arthropods
In a glycoside bond, a___ atom connects the carbon of two adjacent sugars. -
✔️✔️Oxygen
Both starch and cellulose are glucose polymers. Why can animals easily degrade
starch, but not cellulose? - ✔️✔️Animals have the enzymes to degrade a 1,4-gycosidic
bonds, but not b1,4-gycosidic bonds.
Sugars are essentially what category of molecules? - ✔️✔️Carbohydrates
Carbohydrates are made up of which of the following monomeric subunits? - ✔️✔️Sugars
Four of the five answers listed are carbohydrates. Select the exception. -
✔️✔️Cholesterol
A chemical bond with unequal sharing electrons is called? - ✔️✔️Polar covalent bonds
Substances that give up protons H+ during acid-base reactions are: - ✔️✔️acids
The most predominant components of biological membranes are - ✔️✔️phospholipids
Describe the hydroxyl (-OH) functional group - ✔️✔️Component of alcohols, acid, polar
Which of the following causes the formation of alpha helices in proteins? - ✔️✔️Hydrogen
bonds between backbone atoms
Every protein will have which of the following? - ✔️✔️An amino and carboxyl terminus,
peptide bonds
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