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Bio I (NonMajors): Lecture Exam 1 (Ch 1, 2, 3) Flashcards | StudBud
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Bio I (NonMajors): Lecture Exam 1 (Ch 1, 2, 3)
Bio I (NonMajors): Lecture Exam 1 (Ch 1, 2, 3)
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Study practice for Lecture Exam 1 in Biology I NonMajors (Chapter 1, 2, 3)
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Answers
1
Moving material into cells after it binds with a receptor protein of the extra cellular matrix.
hydrogen bonding
receptor-mediated endocytosis
exocytosis
ionic bonding
2
The ability to respond to stimuli is also known as
irritability
order
reproduction
metabolism
3
Microfilaments, like actin, are the thinnest fibers of the cytoskeleton.
false
true
4
polar covalent molecules share electrons ___.
they don't share electrons
unequally
equally
5
Large vesicle used for storage. (like that of plants that stores water or starch)
peroxisome
lysosome
vacuole (central)
Golgi apparatus
6
which of the following is NOT true of water?
it is a ionic compound
it has a high heat capacity
it has high heat of vaporization
it is a polar covalent molecule
7
Life is thought to be united by how main theories
4
0
8
1
8
Which of the following is NOT true of phospholipids?
both of these are true
they are both hydrophilic and hydrophobic
they make up the cell membrane of cells
9
Group of atoms bonded together to form a large compound
molecule
macromolecule
atom
element
10
All chemical reactions that occur in an organism are collectively called:
organic molecules
metabolism
genetic code
evolution
11
site of protein synthesis
ribosomes
nucleus
Golgi apparatus
vesicle
12
which of the following is not true?
electrons are negatively charged
protons and neutrons have a mass of 1 amu each
protons are positively charged
those are all true
13
Dew on a spider web - when water sticks to another substance- is an example of :
High heat of vaporization
Adhesion
Cohesion
High heat capacity
14
a charged particle formed by gaining or losing an electron.
neutron
isotope
ion
proton
15
Which of the following is NOT present in both prokaryotic and eukaryotic cells?
DNA
nucleus
Ribosomes
cytoskeleton
16
which of the following is not true of nucleic acids?
DNA has thymine and RNA has uracil
includes DNA, RNA, and ATP
deoxyribose is the sugar present in RNA
nucleotide composed of phosphate, a sugar, and a base
17
Which of the following is NOT true of proteins?
several structure levels (primary, secondary, tertiary...)
all true
long chains of amino acids (like a beaded necklace)
bonded together by peptide bonds
18
Maintaining steady, balanced internal cellular environment.
irritability
homeostasis
evolution
genes
19
irreversible change of a protein due to change in temperature or pH.
ionic bonding
denaturation
dehydration synthesis
hydrolysis
20
Atoms of the same element with different atomic masses (like Carbon 12 and Carbon 14).
Isotopes (possibly radioisotopes)
macromolecules
proteins
compounds
21
Scanning electron microscopes are used to
see cells and organelles
see the extreme details of the surface of objects
see large 3D objects
see the extreme details of internal structures of objects
22
Organism composed of many cells
multicellular
unicellular
23
Movement of molecules which does NOT require energy
Active
Passive
24
the octet rules of atomic energy shells states which of the following?
a spider has 8 legs
an octagon has 8 sides
all but the 1st energy shell can hold up to 8 electrons
an octopus has 8 tentacles (arms)
25
Decomposers are vital to recycling energy nutrients into the ecosystem.
false
true
26
Biology is
the study of Rocks
the study of Life
the study of atoms
the order of elements in the periodic table
27
Which of the following is not true of hydrophobic
nonpolar molecules are hydrophobic
means "water fearing"
lipids are hydrophobic
polar molecules are hydrophobic
28
The photosynthesis reaction uses water, carbon dioxide, and sunlight to make sugar and oxygen.
false
true
29
Atoms interact because their valence shells are full.
true
false
30
Which of the following lists the hierarchy of life in DECREASING order of complexity?
biosphere, cells, organs, atoms
molecules, cells, organs, organism
molecules, organelles, ecosystems, cells
organs, tissues, cells, molecules
31
Which is NOT matched correctly?
Kingdom Fungi = autotrophic organisms
Kingdom plantae = photosynthetic organisms
Kingdom Animalia = heterotrophic organisms
Kingdom Protista = unicellular organisms
32
Scientific inquiry that uses observations from an investigation to arrive at a conclusion
Deductive reasoning
Inductive reasoning
33
Which of the following does NOT describe a prokaryotic organism?
has a membrane bound nucleus
contains a cell wall
Domains Archaea and Bacteria
small cells
34
Which does not support the endosymbiotic theory of mitochondria and chloroplast?
they have their own DNA
they can divide independently of cell
they have flagella
they look similar to some bacteria
35
Movement of a large material into the cell (like a white blood cell taking in a bacteria)
Exocytosis
Pinocytosis
facilitate transport
Phagocytosis
36
Fatty acid required by the organism but not made by the organism
polyunsaturated fat
saturated fat
essential fat
unsaturated fat
37
Which of the following is NOT true of lipids?
Animal fat is liquid at room temperature
monomer is a glycerol and 3 fatty acids
Plant oils are liquid at room temperature
function as energy storage, insulation, and protection
38
Segments of DNA that code for specific proteins are called:
genes
lipids
adaptations
fatty acids
39
pH above 7 is acidic
false
true
40
Which of the following are lipid soluble and can pass easily through the plasma membrane?
all of these are correct answers
vitamins like A, D, and E
oxygen
carbon dioxide
41
Proteins are diverse and have many functions.
true
false
42
Anything that takes up space and has mass is matter.
true
x
false
x
43
Fatty acid with NO carbon double bonds. (carbon is bound to hydrogen at all possible places)
unsaturated
polyunsaturated
saturated
44
Which of the following is NOT true of plants?
autotrophic
consumers
eukaryotic
producers
45
Group of cells with a common function.
organ
organelle
tissue
atom
46
Several conditions can affect the rate of diffusion - like temperature.
true
false
47
Making (synthesizing) polymers from monomers by removing water
dehydration synthesis
hydrolysis
48
The scientific name contains the genus and the species taxa name using the
binomial nomenclature
organic molecule structure
genetic code
evolutionary tree
49
Bacteria have a membrane bound nucleus with circular DNA.
true
false
50
The electrons in the outer most energy shell of an atom are called
isotopes
valence neutrons
valence protons
valence electrons
51
Movement of molecules from high concentration to low across a semipermeable membrane
osmosis
diffusion
facilitated diffusion
endocytosis
52
Thick mucous covering of a bacteria used for protection and thought to cause disease:
plasma membrane
flagella
capsule
cell wall
53
Peroxisome vesicles contain digestive enzymes.
false
true
54
Mitochondria and bacteria are about the same size.
false
true
55
Which of the following is not true?
A phosphate group is the functional group of nucleic acids
those are all true
An amino group is the functional group of proteins
The hydroxyl group is the functional group of sugars
56
Pores in the plant cell wall for gas exchange and communication with other cells
tight junction of human cells
peptidoglycan
phospholipid bilayer
plasmodesmata
57
Primary energy molecule of the cell
gene
DNA
RNA
ATP
58
Which of the following is true of carbohydrates?
monomers is a monosaccharide
all these are true
includes polysaccharides like cellulose and glycogen
used for energy and energy storage
59
Cells who function in high secretions have a high amount of this organelle
high amount of endoplasmic reticulum
high amount of ribosomes
more than one nucleus
high amount of Golgi apparatus
60
Which of the following is
not
true of covalent bonds?
common bond for organic molecules
form by sharing electrons
form by gaining or losing an electron
can share equally or unequally
61
Which of the following is not true?
acids - compound adding H+ to solution
buffer - compound which resists pH changes
hydrophilic is water fearing
Solution is a mixture of a solvent and a solute
62
The mass of an element is composed of which of the following (which is located in the nucleus)
number of protons plus number of neutrons
Number of protons
Number of electrons plus number of protons
Number of electrons plus number of neutrons
63
Pili and cilia are used for the same purpose - movement
true
false
64
Which of the following is not true of the plasma membrane?
made of a phospholipid bilayer
has protein channels that allow molecules to pass through
all these are true
is selectively permeable
65
The smallest functional unit of life is:
protein
atom
organ
cell
66
If a red blood cell is placed in a HYPOtonic solution - the cells will
shrink as water moves out of the cell
maintain homeostasis
swell up as water moves into the cell
67
Bacteria that can survive and flourish in extremely harsh environments are members of
Domain Bacteria
Domain Eukarya
Domain Archaea
Kingdom Animalia
68
Which of the following lists the taxa in order of general to specific?
species, genus, family, order, class
Kingdom, phylum, class, family, domain
Bacteria, Archaea, Eukarya
domain, kingdom, phylum, class, order, family
69
The folding structure level of proteins where the active site forms is which of the following?
primary
quartenary
tertiary
secondary
70
The function of wax (like ear wax or bee hive wax) is
water proofing
make up cell membranes
component of hormones
insulation
71
Site of photosynthesis
ribosomes
rough endoplasmic reticulum
mitochondria
chloroplast
72
which of the following is not true of cell walls?
fungus cell walls made of chitin
functions to protect and support
all these are true
plant cell walls made of cellulose
73
weak attractions between a slight negative of one molecule and a slight positive of another
ionic bond
nonpolar covalent
hydrogen bond
polar covalent bond
74
All the contents between the plasma membrane and the nuclear envelope is called
ribosomes
Golgi apparatus
cytoskeleton
cytoplasm
75
Change in a population over time is
irritability
evolution
order
multicellular
