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Ch. 1 - 6 (FALL 2019) Flashcards | StudBud
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Ch. 1 - 6 (FALL 2019)
Ch. 1 - 6 (FALL 2019)
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Answers
1
Which fact about carbohydrates is false?
Cells break down carbohydrates for energy
Formation of disaccharides from monosaccharides is a dehydration reaction
Starch is a polysaccharide often found in animals
Carbohydrates are made of carbon, hydrogen, and oxygen
2
The 3 domains are?
Bacteria, Archaea, Eukarya
Eukarya, Viruses, Protista
Bacteria, Viruses, Eukarya
Archaea, Bacteria, Animalia
3
Has 3 tails, no C=C double bond, found in animals.
Lipids
Steroids
Unsaturated Fats
Saturated fat
4
If a solute is able to dissolve in water, it is most likely...
Covalent
Dissolvable
Polar
Non-polar
5
Who published the theory of natural selection?
Gregor Mendel
Charles Darwin
Galileo
Robert Hooke
6
Which answer correctly matches the subatomic particle with its location and charge?
Protons-Orbitals- positive
Electrons-Orbitals- negative
Neutron-Nucleus-positive
Electrons-Nucleus- negative
7
Which of the following are NOT kingdoms in the domain Eukarya?
II only
I only
I & II
All of the above
8
An atom’s atomic number describes its...
# of Protons + # of Neutrons
# of Electrons
# of Neutrons
# of Protons
9
Which is NOT true about Domain Bacteria?
cells have no nucleus
live in extreme environments
unicellular prokaryotic organisms
Cyanobacteria and Eubacteria are main groups
10
A R-COOH group is called...
Aldehyde
Carboxyl
Amino
Carbonyl
11
Autotrophs must consume other living things to live and grow.
False
True
12
When DNA is put together, these types of bonds are formed.
Disulfide bridge
Glycoside linkages
Phosphodiesterbonds
Peptide bonds
13
There is a field in a mountain range containing many Eastern cottontail bunnies. This group is called...
Life system
Community
Ecosystem
Population
14
All of the following are examples of polar molecules except?
H2C=O
H3C-OH
NH3
H3C-CH2-CH2-CH3
15
Oxygen and nitrogen are very electronegative atoms and therefore
often
create polar bonds
True
False
16
The Atomic Mass is...
# of Protons + # of Neutrons
# of Neutrons
# of Electrons
# of Protons
17
Nucleotides are composed of which three parts?
A hexose, a phosphate group, and a nitrogenous base
A pentose, a phosphate group, and a hydroxide base
A hexose, a sulfate group, and a hydroxide base
A pentose, a phosphate group, and a nitrogenous base
18
The reaction where molecules break down into smaller components is called what?
Hydrolysis
Fissio
Polymerase
Dehydration
19
In a glass of saltwater, the solute is...
The dissolved NaCl
The solution
The water + dissolved NaCl
The water
20
Two different isotopes of carbon differ in their number of...
Neutrons
Bonds
Protons
Electrons
21
This bond links adjacent amino acids.
Ionic bond
Polypeptide bond
Ester bond
Peptide bond
22
Atom(s) share a pair of electron(s) in...
Hydrogen bond
Covalent bond
Van der waals
Ionic bond
23
Which is the correct order of levels of organization?
Organ -> Tissue -> Communities -> Biosphere
Tissue -> Communities -> Populations -> Ecosystems
Cell -> Organ -> Communities -> Populations
Tissue -> Populations -> Communities -> Biosphere
24
Which of the following DOES NOT correctly describe how tertiary protein structure is determined?
Hydrophobic interactions lead to nonpolar groups bunching together
Van der Waals forces keep amino acids the optimal distance apart
Disulfide bridges covalently link amino acids
Hydrogen bonds covalently link adjacent H+ and electronegative atoms
25
A glycosidic bond is formed between Glucose and Fructose to make a disaccharide, what type of reaction is this?
Hydrophobic reaction
Hydrolysis reaction
Acid/base reaction
Dehydration reaction
26
Humans use many oils extracted from vegetables, like unsaturated corn oil. What is different between these triglycerides
Unsaturated fats have C=C double bonds, while saturated animal fats do not.
Animal fats have two fatty acid tails, while plant fats have three.
There is no chemical difference between unsaturated fats and saturated fats
Vegetable oils naturally contain many trans fats
27
A protein’s secondary structure talks about...
Shape caused by multiple protein subunits
ά-helix and β-pleated sheets
Order of amino acids
Combination of motifs and barrels
28
What is an example of hydrogen bonding?
Hydrocarbons have many C-H hydrogen bonds
When you mix water and ethanol, they separate into discrete layers
Van der Waals forces between adjacent molecules containing hydrogen
The oxygen in an -OH bond has a weak attraction to a neighboring amino acid
29
What is the difference in concentration of hydrogen ions between a pH of 4 and 6?
4 has 10x more than 6
4 has 100x more than 6
6 has 2x more than 4
6 has 100x more than 4
30
What are the most common elements in an organism?
magnesium, carbon, helium, hydrogen
carbon, hydrogen, nitrogen, oxygen
calcium, hydrogen, oxygen, carbon
oxygen, nitrogen, carbon, calcium
31
Which of the following would you expect to be most hydrophilic?
Hydrocarbon w/methyl group
Saturated hydrocarbon
Hydrocarbon w/hydroxyl group
Unsaturated hydrocarbon
32
What type of bonding holds complementary base pairs together in DNA and RNA?
hydrogen bonding
nonpolar covalent bonding
ionic bonding
polar covalent bonding
33
What is the smallest unit of carbon that still retains the properties of carbon?
Cell
Element
Cation
Atom
34
What component is necessary to call a molecule a steroid?
Glycerol backbone
Related to organismal growth
Cholesterol side chain
Four-ring structure
