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Midterm Biology 24-25 Flashcards | StudBud
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Midterm Biology 24-25
Midterm Biology 24-25
80 terms
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Scientific Method, Chemistry, Ecology, and Cells.
Flashcards
80 cards
F
Practice quiz
P
Host live
L
Questions
80
Answers
1
This image shows a
prokaryotic cell
eukaryotic cell
plant cell
virus
2
Which is the original source of almost all energy in most ecosystems
water
sunlight
oxygen
carbohydrates
3
In Mutualism, the host...
is harmed
dies
is neither helped nor harmed
is helped
4
Nutrients that are the main source of energy for the body are
vitamins.
proteins.
fats.
carbohydrates.
5
Which formula represents an organic compound?
H2O
CO2
CH4
NaCl
6
Which trophic level does the robin occupy?
5
4
1
2
7
Which of the following describes bacteria?
Eukaryotes
Prokaryotes
Fungus
Multicellular
8
What are the producers in this food chain?
zooplankton
small fish
killer whales
phytoplankton
9
Smallest unit of matter
Tissue
Molecule
Cell
Atom
10
DNA vs RNA,
Type of sugar___________ & _______________
ribose & nucleotide
sugar & phosphate
deoxyribose & ribose
deoxyribose & phosphate
11
Nitrogen fixation is carried out by
animals
viruses
eukaryotes
bacteria
12
Which of the following organisms are herbivores?
white grubs and caterpillars
owls and dragonflies
ladybugs and grasshoppers
finches and mosquitoes
13
Function of the
CELL MEMBRANE
Controls what enters or leaves the cell
Transport packaged proteins to the rest of the cell
Where DNA is stored and protected
Provide chemical energy for the cell
14
Maltase is a(n)
Carbohydrate
Lipid
Protein
Nucleic Acid
15
All organic molecules contain
nitrogen
neon
carbon
oxygen
16
What are the secondary consumers?
fishes and crab larvae
zooplankton
diatoms and algae
large fishes
17
Which factor below is an abiotic factor?
water
fish
tree
bird
18
The monomer of a protein is
nucleotide
fatty acid
monosaccharide
amino acid
19
Photosynthesis takes place in which organelle within a cell?
Chloroplast
Gogli Complex
Nucleus
Mitochondria
20
Carbon is removed from the atmosphere by
none of the above
photosynthesis
respiration
combustion
21
A population reproduce at a constant rate, it produces a pattern of growth known as
Exponential growth
Carrying capacity
Logistic growth
Growth density
22
What is added to a polymer to break off a monomer?
hydrogen
oxygen
carbon
water
23
Give the DNA complement to the following DNA strand: AATACG
TTATGC
TTATCC
UUTUGC
AATACG
24
The statement “the lake is 100 feet long” is a(an):
An inference
A quantitative observation
A hypothesis
A qualitative observation
25
How are transpiration and evaporation related?
they are not related
both involve condensation of water
both involve evaporated water
One is condensation and the other is evaporation of water
26
A blue jay's diet consists of seeds, nuts and fruits. How is this organism best classified?
carnivore
omnivore
producer
herbivore
27
Which of the following is NOT a principle of the cell theory?
All cells are produced from existing cells.
Very few cells are able to reproduce.
Cells are the basic units of life.
All living things are made of cells.
28
RNA base pairing
A=U, G=C
A=G, U=C
A=T, G=C
A=T, U=C
29
Which item below is a biotic factor
rock
water
wind
tree
30
As water cycles through an ecosystem, which process returns it to the atmosphere?
condensation
cyclosis
transpiration
hydrolysis
31
What is the secondary consumer in this food chain?
sun
hawk
frog
snake
32
The main difference between a prokaryote and eukaryote is
there are no differences
prokaryotes do not move, eukaryotes do move.
prokaryotes don't have a nucleus, eukaryotes have a nucleus
prokaryotes have a nucleus, eukaryotes don't have a nucleus
33
How does a theory differ from a fact?
Theory shows a relationship among facts about a particular phenomenon.
Theory proves how different influences affect a particular phenomenon.
Theory is a collection of facts about a particular phenomenon.
Theory attempts to explain and give some logical order to observations.
34
Which is the general chemical equation for cellular respiration?
6CO2 + 6H2O + ATP (Energy) → 6O2 + C6H12O6
6CO2 + C6H12O6 → 6CO2 + 6H2O
6CO2 + 6H2O + light energy → 6O2 + C6H12O6
6O2 + C6H12O6 →6CO2 +6 H2O + ATP (Energy)
35
Properties of water
High heat capacity
All answers are correct
Universal solvent (solubility)
Adhesion and cohesion
36
Explain how enzymes speed up reactions.
They raise the activation energy.
They lower the activation energy.
Enzymes are not involved in speeding up reactions.
37
An inference is
The same as an observation
A statement involving numbers
A way to avoid bias
A logical interpretation of an observation
38
The monomer of a carbohydrate is
fatty acid
monosaccharide
nucleotide
amino acid
39
What is the ultimate source of energy for almost all food chains on Earth?
carbohydrates
bacteria
sun
producers
40
How do photosynthesis and cellular respiration impact the carbon cycle?
They both help drive the carbon cycle.
They make diamonds.
They have nothing to do with it.
They bury carbon in the ocean.
41
One water molecule is comprised of _____ molecules.
1 Oxygen and 2 Hydrogen
2 Oxygen and 1 Hydrogen
2 Oxygen and 2 Hydrogen
1 Oxygen and 3 Hydrogen
42
Describe the role of bacteria in the environment.
decomposers
nitrogen fixers
All of the above
help to digest some foods
43
In the water molecule
there is no charge on the atoms
oxygen is negatively charged
hydrogen is negatively charged
oxygen is positively charged
44
Which is a difference between abiotic and biotic factors?
Abiotic factors are living & biotic factors are nonliving
Biotic factors are plants and abiotic factors are animals.
Abiotic factors are plants and biotic factors are animals.
Abiotic factors are nonliving & biotic factors are living
45
The molecule to which an enzyme acts or binds to is called a(n)
substrate
active site
organic molecule
inactive site
46
Carrying capacity
occurs in logistic growth
occurs in exponential growth
never happens
47
Nitrogen fixation is achieved by the beneficial activities of which organism in the soil?
protists
viruses
fungi
bacteria
48
LDL cholesterol is considered bad cholesterol and HDL cholesterol is considered good cholesterol
True
False
49
Smallest unit of life
Molecule
Tissue
Atom
Cell
50
Omnivores are consumers that feed on __________.
consumers only
producers only
both producers and consumers
51
Most precipitation returns to the atmosphere through which process?
Condensation
Runoff
Evaporation
Precipitation
52
ALL cells have:
Cytoplasm
Nucleoid
A cell wall
Mitochondria
53
The negatively charged particle that surrounds an atom is called a(n)
neutron
proton
none of the above
electron
54
What is the RNA complement to the following DNA: TTG GAT
AAC CUA
UUC CTU
AAC CTA
None of These
55
In Commensalism, the host...
is harmed
dies
is neither helped nor harmed
is helped
56
The three major community interactions are?
Competition, Predation, Symbiosis
Niche, Consumers, Producers
Food, Habitat, Community
Tertiary, Secondary, Primary Consumers
57
Base Pairing Rule
T = C and A= G
A = C and T = G
A= T and C= G
C =T and G = A
58
True or False: The H atoms in the water molecule have a slight positive charge.
True
False
59
All living organisms are composed of
Chitin
Cells
Air
60
Nitrogen fixation is the process in the nitrogen cycle that...
Bacteria in the soil turn nitrogen back into nitrogen gas
Bacteria in the roots of plants turn nitrogen gas into usable form
Nitrogen is fixed into the atmosphere
Nitrogen is removed from dead organisms to be used
61
In Parasitism, the host...
is harmed
doesn't notice
infects the parasite
is helped
62
Most of the special properties of water are caused by which type of bond?
none of the above
ionic
covalent
hydrogen
63
What type of growth is exhibited by a population experiencing unlimited resources?
Negative growth
Logistic growth
Variable growth
Exponential growth
64
ALL cells have:
Ribosomes
A nucleus
A cell wall
Mitochondria
65
Which of the following is heterotrophic?
pine tree
sunflower
mouse
algae
66
Which of the following best describes a decomposer?
producer
predator
garbage collector
recycler
67
The exoskeleton of arthropods is composed of:
calcium carbonate
chitin
cellulose
silica
68
Carbon can form
2 bond
4 bonds
6 bonds
8 bonds
69
The movement of individuals out of an area is called:
Carrying capacity
Immigration
Demographics
Emigration
70
Plant vs. Animal Cells
Animal cells do not have cell wall
Animal cells lack chloroplast, cell wall, and large central vacuole
Animal cells lack cytoplasm
Animal cells do not have plasma membrane
71
All organic molecules contain what atoms?
Carbon and oxygen
Hydrogen and Oxygen
Nitrogen and carbon
Carbon and hydrogen
72
A hypothesis must be
touchable
correct
testable
measurable
73
A variable is
An experiment without tests
A factor that influences an experiment
A theory
A way to learn about the observations
74
Which is the general chemical equation for photosynthesis?
6CO2 + C6H12O6 → 6CO2 + 6H2O
6CO2 + 6H2O + light energy → 6O2 + C6H12O6
6CO2 + 6H2O + ATP (Energy) → 6O2 + C6H12O6
6O2 + C6H12O6 →6CO2 +6 H2O + ATP (Energy)
75
Maltose is a(n)
Nucleic Acid
Lipid
Carbohydrate
Protein
76
Which is NOT a characteristic of life?
ability to breathe
made up of cells
grow and develop
has DNA
77
Which of the following organisms is an autotroph?
shrimp
green algae
bread mold
mushroom
78
Which term is used to describe the ability to keep the internal environment relatively stable
Cellular Respiration
Synthesis
Homeostasis
Metabolism
79
The krill are ________________ consumers.
primary and secondary
secondary only
primary, secondary and tertiary
primary only
80
The monomer of a nucleic acid is
nucleotide
fatty acid
amino acid
monosaccharide
