SI BIOL 1020 Test 1 Review (Ch.1-6)
1. What type of a reaction is used to join glucose subunits in your body to form glycogen?
A) hydrolysis
B) redox
C) equilibrium
D) glycosidic
E)condensation
2. Consider ​Homo sapiens. ​Which of the following is ​false​?
A) ​Homo​ is the genus name.
B) ​Homo sapiens ​is the species name for humans.
C) “​sapiens” ​should be capitalized
D) The specific epithet is ​sapiens.
3. Water is held together by covalent bonds. Which is true?
A) Water is a compound and a molecule.
B) Water is a molecule not a compound.
C) Water is a compound not a molecule.
D) Water is neither a compound nor a molecule.
4. Which of the following correctly orders the hierarchy of biology from smallest to largest.
A) organelle, organ system, cell, population, biosphere
B) organelle, cell, tissue, organ system, population, biosphere
C) cell, community, population, organ system, organelle, biosphere
D) organism, organ system, organelle, cell, community
5.
A)
B)
C)
What is the atomic number of this atom?
7
14
22
D) 6
6. What is the identity of the element from 5?
A) Oxygen
B) Nitrogen
C) Bromine
D) Iodine
7. The linkage that occurs when two atoms have an unequal sharing of electrons is called a
_________.
A) Glycosidic
B) Ester
C) Covalent bond
D) Polar Covalent bond
E) Ionic Bond
8. The high specific heat capacity of water is mainly due to
A) Small size of water molecules
B) The fact that it can dissolve polar substances
C) The adhesive forces of water
D) The absorption and release of heat when hydrogen bonds break and form
9. Which of the following describes a reaction that has reached chemical equilibrium?
A) The concentration of reactants is equal to the concentration of products
B) The forward and reverse reactions have stopped proceeding.
C) The rates of the forward and reverse reactions are equal.
D) All of the reactants have converted to products.
10. The image above is a
A) Nucleic acid
B) Protein
C) Lipid
D) Hydrocarbon
E) Carbohydrate
11. Why does ice float in water?
A) Water has a high specific heat.
B) Water has covalent bonds.
C) Hydrogen bonds stabilize the molecules of ice so they are farther apart and therefore
less dense than liquid water.
D) The crystals of ice cause it to be more dense than water so that it floats.
12. This macromolecule is typically a double helix made of two strands that are held together by
hydrogen bonds.
A) Carbohydrates
B) Polysaccharides
C) Lipids
D) Proteins
E) DNA
13. The cell walls of organisms in this kingdom are made of chitin.
A) Animalia
B) Plantae
C) Protozoa
D) Fungi
E) Eubacteria
14. Which of the following is NOT in DNA?
A) Uracil
B) Guanine
C) Thymine
D) Cytosine
E) Adenine
15. The amino acid above has an R group that is:
A) Polar; hydrophobic
B) Polar; hydrophilic
C) Nonpolar; hydrophobic
D) Nonpolar; hydrophilic
16. What type of bond is formed by attractions between partial positive and partial negative
charges?
A) Ionic
B) Covalent
C) Polar Covalent
D) Hydrogen
17. Most pH buffers are
A) Weak acids or weak bases
B) Salts
C) Strong acids
D) Strong bases
18. Isotopes of elements have
A) The same number of electrons but different numbers of protons
B) The same number of protons but different numbers of electrons
C) The same number of protons but different numbers of neutrons
D) The same number of neutrons but different numbers of protons
19. A carbon atom with six protons, seven neutrons, and six electrons has an atomic mass of
A) 6
B) 7
C) 13
D) 14
E) 19
20. What are the main structural components of biological membranes?
A) Polysaccharides
B) Starch
C) Phospholipids
D) Nucleic Acids
21. Fido was neutered so he cannot have puppies of his own. You can pet him and he is eating
your fries from CFA right now. Is he alive?
A) Yes
B)No
22. The molecule above is:
A) ATP
B) Cholesterol
C) Glycogen
D) Triacylglycerol
23. The correct taxonomic order from most to least specific is
A) Species, genus, family, order, class, phylum, kingdom
B) Genus, family, kingdom, domain, order
C) Genus, family, domain, kingdom, phylum
D) Phylum, kingdom, order, class, family, species, genus
24.___________ make their own food, usually through photosynthesis.
A) Autotrophs
B) Heterotrophs
C) Consumers
D) Decomposers
25. A certain eukaryote does not have a cell wall. Which kingdom could it belong to?
A) Animalia
B) Protista
C) A or B
D) Neither A nor B
26. These four elements make up 96% of all living mass.
A) Na, Cl, S, P
B) C, N, O, H
C) Ca, P, K, C
D) C, O, S, Na
27. The overall folded shape of 1 polypeptide chain determined mainly by R group interactions
is
A) Primary structure
B) Secondary structure
C) Tertiary Structure
D) Quaternary Structure
28. This type of microscopy is used for tiny 3D images that are gold plated.
A) Light microscopy
B) Electron Microscopy
C) Transmission Electron Microscopy
D) Scanning Electron Microscopy
29.) This is the site of lipid synthesis and detoxification. Hint: Lots in liver cells!
A) Smooth ER
B) Rough ER
C) Golgi Apparatus
D) Ribosomes
E) Nucleus
30.) This is the site of protein synthesis and has two main subunits.
A) Smooth ER
B) Rough ER
C) Golgi Apparatus
D) Ribosomes
E) Nucleus
31. This is formed by flattened membrane sacs called cisternae and modifies and sorts proteins.
A) Smooth ER
B) Rough ER
C) Golgi Apparatus
D) Ribosomes
E) Nucleus
32. Mitochondria:
A) Have their own DNA
B) Can leak electrons causing free radicals
C) Work in the process of apoptosis
D) All of the above
E) None of the above
33. Cell theory includes the idea that
A) All cells have a double membrane
B) All cells have membrane bound organelles
C) All cells come from existing cells
D) All life is multicellular
34.Cilia and flagella have a basal body containing
A) 9+2 arrangement of microtubules
B) 9x3 arrangement of microtubules
C) Microfilaments only
D) Intermediate filaments only
35. True or False: Animals are incapable of having an extracellular matrix or glycocalyx
36. This organelle is found in plant seeds and contains enzymes that turn fat into sugar
A) Peroxisome
B) Lysosome
C) Nucleoplasm
D) Glyoxysome
37. What eventually happens as the surface area to volume ratio of a cell continues to increase
A) The cell bursts
B) The cell divides
C) The cell dies
D) The cell alters its function
38. What is the densest material that sinks into the bottom of a test tube during centrifugation
called?
A) Supernatant
B) Fractionation
C) Lysed
D) pellet
39. Which correctly matches the monomer to its corresponding molecule?
A) Monosaccharide: Protein
B) Fatty acid: Nucleic acid
C) Amino acid: lipid
D) Monosaccharide: Carbohydrate
40. Steroids, cholesterol, and some hormones are examples of
A) Starches
B) Phospholipids
C) Triacylgycerols
D) Terpenes and Terpenoids
41. Label each organelle:
A. ____________________
B. ____________________
C. ____________________
D. ____________________
E. ____________________
F. ____________________
G. ____________________
H. ____________________
I. ____________________
J. ____________________
42. Label Each Functional Group: