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BIOL170 MOCK EXAM 1 Flashcards | StudBud
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BIOL170 MOCK EXAM 1
BIOL170 MOCK EXAM 1
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1
Charged ions can easily diffuse through the plasma membrane
True
False
2
Which element does NOT appear in carbohydrates?
Nitrogen
Hydrogen
Oxygen
Carbon
3
What makes a fatty acid "saturated fat"?
Has the maximum number of carbons
Remains liquid at room temperature
Has the maximum number of hydrogens
Has the maximum number of double bonds
4
The smooth endoplasmic reticulum
modifies proteins
packages proteins
synthesizes lipids
attaches lipids to proteins
5
Protein denaturation can be caused by
change in pH
change in temperature
change in ionic strength
change in solubility
6
What is the strongest force betweeen two molecules?
Hydrogen bonds
Covalent bonds
Polar covalent bonds
Ionic bonds
7
Eukaryotes divide by _____ and prokaryotes divide by ______
binary fission; meiosis
binary fission; binary fission
meiosis, binary fission
mitosis; binary fission
8
By looking at the name, you can tell that Amylase is a(n)
Amino acid
Starch
Nucleotide
Enzyme
9
Which group on an amino acid determines its function?
Hydrogen
Side chain
Carboxyl group
Amino group
10
What is the process called when RNA is converted to DNA?
Translation
Reverse transcriptase
Transcription
Reverse translation
11
Which nucleotides are purines?
Adenine
Guanine
Cytosine
Thymine
12
Absorption of nutrients in cells is best acheived through
Phagocytosis
Microvilli
Exocytosis
Increasing cell size
13
Cylic AMP's main function is
thermal insulation
cellular signaling
energy production
energy storage
14
Where are ribosomes found in the cell?
Golgi apparatus
Rough ER
Cell membrane
Cytoplasm
15
Which of the following is NOT an example of the properties of water?
Sweating
Water sticks together to move from the roots to the leaves in a tree
Water in the ocean is warmer than the shore in the winter
The ionic bonds in water molecules allow a spider to walk across a river
16
Which part of the mitochondrium accounts for high-efficiency energy production?
Outer membrane
Ribosomes
Cristae
ATP
17
All organisms are composed of cells
False
True
18
_____ releases energy by breaking down large molecules into small molecules
catabolism
anabolism
glycolysis
fermentation
19
A protein consists of...
More than 100 amino acids
More than 100 monosaccharides
At least 20 monosaccharides
At least 20 amino acids
20
Which eukaryotic cell organelle is known as the "cellular garbage can"?
Lysosomes
Mitochondria
Golgi apparatus
Ribosomes
21
Cytoplasmic streaming relies on which kind of microtubule?
Tubulin
Actin
Myosin
Microvilli
22
Cells are the fundamental units of life
False
True
23
Which of the follwing are examples of single-ringed nucleotide bases?
Purines
Cytosine
Thymine
Pyrimidines
24
The DNA backbone is held together by ____ bonds and _____ bonds between the base pairs of each strand.
phosphodiester, phosphodiester
phosphodiester, hydrogen
covalent, phosphodiester
hydrogen, covalent
25
Pilli are found on the ______ membrane of ______
outer; prokaryotes
inner; prokaryotes
inner; eukaryotes
outer; eukaryotes
26
Which theory best explains why mitochondria and chloroplasts contain DNA
Natural selection
Cell theory
Endosymbiotic theory
The RNA World Theory
27
How are plant cells and prokaryotes alike?
both have scattered DNA
both contain a cell wall
both photosynthetic
both have flagella
28
Which of the following are functions of the cytoskeleton?
Metabolize
Allows the cell to move
Holds the cell in place
Maintains cell shape
29
All cells come from preexisting cells
True
False
30
Modern cells evolved from the last universal common ancestor
False
True
31
A spherical organization of phospholipids that led to the rise of the first cell is called
Ribozyme
Prokaryote
Protocell
Phospholipid bilayer
32
What do prokaryotes use to carry out metabolism?
Endomembrane system
Internal membrane system
Mitochondria
Flagellar motor
33
All living beings...
Metabolize
Maintain homeostasis
Reproduce
Move and remove waste
34
What is the Central Dogma of Molecular Biology?
DNA is transcripted into RNA which is translated into proteins
RNA is transcripted into DNA which is translated into proteins
DNA is translated into RNA which is transcripted into proteins
RNA is translated to DNA which is transcripted into proteins
35
Carbon-14 is an example of
Neutral atom
Cation
Isotope
Anion
