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Life Science 7th Grade Midterm Review Flashcards | StudBud
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Life Science 7th Grade Midterm Review
Life Science 7th Grade Midterm Review
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Questions
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Answers
1
Explain how an evolutionist & a creationist differ when explaining if eukaryotic or prokaryotic cell came first-essay
Creationist believe eukaryotic came 1st from God
Creationist believe God created plants (eukaryotes) on Day 3
I will know all of these for the essay answer on test
Evolutionist believe prokaryotic evolved 1st from nonliving things
2
Which of the following is the correct order of events for bacteria reproduction
1 bacteria, membrane pinches, DNA replicates, 2 bacteria
1 bacterium, DNA replicates, membrane pinches in, 2 bacteria
1 bacteria, membrane pinches, 2 bacteria, DNA replicates
1 bacteria, X shaped chromosomes, membrane pinches, 2 bacteria
3
What do we call the region on a stem where new leaves or branches are produced?
cuticle
vein
stomata
node
4
Must infect a host cell in order to reproduce...
Virus
Bacteria
5
Which of the following are found in both prokaryotic and eukaryotic cells?
a nucleus
mitochondria
cell membrane
organelles
6
Scientific inquiry uses one very specific method to solve a problem.
False
True
7
How does an active virus reproduce?
viral DNA force host own machinery to make more by using its cells.
when the DJ plays it again
through replication in mitosis
the host cell goes through binary fission
8
label the following image. (no word bank will be on the test)
none of these are correct
1. roots. 2. stem. 3. under cap. 4. cap
both of these are correct
1. hyphae, 2. stipe. 3. gills. 4. Cap
9
A latent virus can remain in the body for years before destroying host cells.
True
False
10
The study of life is called?
both life science and biology
neither
Life science
Biology
11
(Short answer on test) Give 2 ways that RNA molecule is diff from DNA molecule.
RNA has 1 Strand; DNA has 2 strands
RNA has sugar ribose; DNA has deoxyribose
Any 2 of the 3 of these will be accepted on the test.
RNA contains Uracil instead of Thimine
12
How does a protist digest food it has consumed?
By using enzymes found in food vacuoles
By using Cilia to break down food
By using conjugation to join its oral grooves
By using acid in its stomach
13
May move using flagella...
Bacteria
Virus
14
What was the name of the Austrian monk who studied the principles of heredity?
Reginald Punnett
Albert Einstein
Charles Darwin
Gregor Mendel
15
What 2 traits are used to classify plants & 3 main groups of plants & an example for all 3. (Essay on Test)
1. Non vascular: moss. 2. Seedless Vascular: ferns
Whether reproduce seeds or not; have vascular tissue or not
I will know and write all of this for the essay question on the test
3. Seed Plants: flowers or cones
16
Which is not a major plant category?
Seedless Vascular
Seed-Bearing Vascular
Seed-Bearing Nonvascular
Seedless Nonvascular
17
Homeostasis is essential to keeping an organism alive.
True
False
18
What do we call organisms that can make their own food?
Producers
eukaryotic
Autotrophic
Heterotrophs
19
A slimy layer called a capsule may be found surrounding which of the following organisms?
bacteria
slugs
Lillies
fungi
20
The weight of a plant is supported by ___
Cell walls and chloroplasts
Turgor pressure and palisade layers
Phloem and bark
Cell walls and turgor pressure
21
An example of a control group could be
a group of cell treated with a toxin extracted from a Gila monster
a group of cells treated with experimental medication
a group of cancer cells given a warmer environment to compare growth
a group of cells allowed to grow without any new chemicals or treatments
22
Bacteria is unable to move
False
True
23
Codons code for about twenty different ____ that are used to build proteins.
amino acids
nucleotides
ribonucleic acids
anticodons
24
Guanine pair with what nitrogen base?
Thymine
None of these
Cytosine
Adenine
25
the trait that appears only in the absence of the other allele(s)
purebred
recessive
hybrid
genotype
26
How would you respond to the argument that protists are simple life forms? (essay Question on test)
I will answer the essay question with all of these answers
Protists are complex w/ 1 cell they can move, digest food.
they can even change the way they get energy
They respond to environment, have behaviors, hunt build, protect, and more
27
Fungal cell walls are made of...
DNA
Chitin
cellulose
proteins
28
Which of the following is not a characteristic of all plants
They produce seeds
They are eukaryotic
They have tissues
They have cell walls
29
The painted lady butterfly has many cells, each with a different job. This butterfly is considered
prokaryotic
multicellular
autotrophic
unicellular
30
All prokaryotes
have tissues
have a nucleus
have been engulfed by other cells
are unicellular
31
Which of the following is not produced with the help of bacteria
cheeese
penicillin
pickles
yogurt
32
Label the following figure: (no word bank on test)
5. Capsule. 6. DNA
5. Capsid 6. DNA
5. Virus 6. Cap
5. microbot. 6. control panel
33
Gene therapy seeks to use viruses to cure
bacterial illnesses
defective genes
ruptured cells
cold sores
34
How does a fungus obtain nutrition?
through photosynthesis
secreting digestive enzymes into its surround area
using cilia to sweep food into its oral groove
by engulfing food and forming vacuoles
35
Trait that appears over the other in a hybrid
purebred
recessive
dominant
cross
36
Before a cell divides, it makes a copy of its DNA during
anaphase
interphase
cytokinesis
prophase
37
label the diagram (fill in blank on test; no word bank)
1. flagellum. 2 DNA 3. capsule. 4. plasmid
none of these are correct
1. flagellum 2. plasmid 3. DNA 4. capsule
1. plasmid. 2. flagellum. 3 capsule, 4. DNA
38
Which is not a charateristic of all living things?
using energy
breathing oxygen
reproducing
growing
39
In a DNA molecule, adenine always pairs with
cytosine.
thymine.
nucleotide.
guanine.
40
Another name for flowering plants:
Gymnosperm
Graminoids
Angiosperm
Flowering
41
(short answer on test) Is the following an image of a latent or active virus?
both
active
neither
latent
42
The overarching narrative that a person uses to see and interpret the world is his
ethic
life science
worldview
theory
43
Protein synthesis is best described by which of the following
enzymes lining up nucleotides
an enzyme unzipping DNA
the bonding together of amino acids in a growing chain
multiple RNA molecules being transcribed at the same time
44
What are cilia?
whip like tail
a bulging movement that amoeba use.
Numerous hair-like oars
lack of movement
45
Which of the following are ciliates
amoeba
slime molds
paramecia
algae
46
How can we prevent viral infections?
by being vaccinated
handwashing
eat healthy
all of the above
47
Both ringworm and athlete's foot are caused by:
bacteria
fungus
protozoa
48
Which cell division process is necessary for sexual reproduction?
transcription
mitosis
meiosis
fertilization
49
What do we call the process of converting the RNA code into a protein?
replication
transcription
translation
transliteration
50
Describe the process of DNA replication?
1. Enzymes unzip; Neucleotides line up on each 1/2
3. This produces 2 identical DNA
I will write all of this for the essay answer on the test
2. Adenine pairs with thymine; guanine pairs with cytosine
51
The combination of letters that represent an allele
Alleles
Genotype
Hybrid
Phenotype
52
Study the anatomy of bacteria, viruses and a mushroom.
Okay
Not going to study
53
Replication results in two identical DNA molecules
True
False
54
Which of the following demonstrates that a protist is not a simple life form
able to hunt, avoid predators, and build protective shelters
all are true
some can respond by switching their energy source or bunching together
THey can move, digest food and respond
55
Which of the following is NOT a beneficial role of bacterial in the environment?
aiding digestion
developing resistance to antiobiotics
fixing nitrogen in the soil
decomposing wastes
56
Can be prevented by vaccinations....
Bacteria
Virus
57
Which of the following best describes a protist?
prokaryotic
animal
any organism that is not animal, plant , bacterium or fungus
plant
58
Prokaryotes are classified
only in hot springs
only in Kingdom Archaea
only in Kingdom Bacteria
in both Kingdoms Archaea and Bacteria
59
Which of the following is not a stage of the cell cycle?
interphase
entrepreneur
cytokinesis
replication
60
Has a cell membrane
Bacteria
Virus
61
A type of plant that has its seeds in cones.
Moss
Angiosperms
Gymnosperms
Ferns
62
What might limit the growth rate of bacteria?
lack of food
lack of moisture
lack of oxygen
all of the above
63
The organism whose genotype if Tt
purebred
hybrid
recessive
dominant
64
A lepidopterist measures the wingspan of a comet moth to be 20 cm. This data is
qualitative data
a model
quantitative data
a hypothesis
65
Which of the following is not a similarity between plants and fungi
both are consumers
Both are eukaryotic
both produce spores
both have cell walls
66
Asexual reproduction happens in fungi when hyphae from two fungi encounter each other
True
False
67
Know the structure of a leaf.
Not going to study
Okay, I will study it
68
Plants whose vascular bundles are evenly distributed throughout their entire stems are
dicots
woody
monocots
fibrous
69
Nucleic acids are made up of three subunits – phosphate, sugar, nitrogenous base
False
True
70
The trait that an organism expresses is determined by its genetic makeup
genotype
phenotype
71
Which organism sweeps food particle into its oral groove?
plasmodium
alga
paramecium
amoeba
72
All fungi produce ______
Diseases
Bacteria
Mushrooms
Spores
73
What is the last step of a controlled experiment?
hypothesis
communicate
investigation
observe
74
To escape poor conditions such as extreme heat or cold, some bacteria form
capsules
blobs
endospores
capsids
75
When a certain type of molecule is found more densely on one side of a membrane than on the other a ---is formed.
Endoplasmic reticulum
concentration gradient
passive transport system
selectively permeable membrane
76
Plant cell walls are made out of...
Murien
Pectin
Cardboard
Cellulose
77
Bacteria are found in the digestive system of ruminants to help...
break down cellulose
decompose waste
transform nitrogen
prevent harmful bacterial infections
78
During fermentation some bacteria turn glucose fragments into which is used in the cheese-making process
Lactic acid
Alcohol
Carbon dioxide
Oxygen
79
How are archaea different from bacteria?
They do not contain peptidoglycan in their cell walls
Bacteria are prokaryotes while archaea are eukaryotes.
Bacteria can live in extreme environments while archaea do not.
They are only found in hot springs
80
Viruses have which of the following structures?
a cell membrane
ribosomes
a cell wall
RNA
81
Which of the following is not one of the eight basic levels of the classification system?
class
kind
domain
kingdom
82
Is an essential component of cheese making...
Bacteria
Virus
83
An organism where both alleles for a particular trait are the same
purebred
dominant
recessive
phenotype
84
Which classification incudes protists that can clump together into large, single-celled masses
ciliates
slime molds
amoeboid protists
fungus like protists
85
Embryonic stem cell research violates God's Word because
stem cell research does not actually develop new treatments
embryonic stem cell research could be used to produce clones
Experimenting with embryonic stem cells require taking the life of a human.
Adult stem cells last longer in the lab
86
Which type of sexual reproduction may be used by paramecia to exchange DNA through their oral grooves?
Conjugation
mitosis
gametes
Cilium
87
Which characteristic do all protist have in common
have membrane-bound nuclei and organelles
clump together with other protist into a larger single celler mass
covered with cilia to move
produce their own food using photosynthesis
88
Which of the following is a phenotype
pea plant
Bb
black furr
a Punnett square
89
A controlled experiment is a way for a scientist to test something by examining the effect of _____ factor(s) at a time.
two
one
many
three
