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Cells Unit Midterm Review(New2025) Flashcards | StudBud
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Cells Unit Midterm Review(New2025)
Cells Unit Midterm Review(New2025)
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#8th grade science
Flashcards
38 cards
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Questions
38
Answers
1
Which of the following is true?
Prokaryotes have no effect on humans.
Prokaryotes are always harmful to humans.
Prokaryotes can be harmful & helpful to humans.
Prokaryotes are always helpful to humans.
2
What do some prokaryotic cells use as protection against harsh conditions?
endoskeleton
endospores
endoderms
endomantis
3
Which organelle serves as a storage space in the cell?
vacuole
lysosome
endoplasmic reticulum
golgi body
4
All animals with backbones had gills at some point during development. What does this indicate?
They lost their gills as they ages and developed into adults
They share a common ancestor from millions of years ago.
They all start out their lives in water
The all evolved separately from each other.
5
What statement about this organism is best supported by the information given in the diagram?
The organisms is multicellular
The organisms is autotrophic
The organism is a parasite
The organism is a prokaryote
6
Ribosomes are the site of
RNA breakdown
RNA synthesis
protein synthesis
protein breakdown
7
Prokaryotic cells have........
more than one circular chromosome
one circular chromosome
one linear chromosome
more than one linear chromosome
8
Which organelle provides pathways to materials into the cell
lysosome
endoplasmic reticulum
Golgi body
cell membrane
9
Fossil evidence shows horses going from 3 toes to hooves over millions of years supports....
Cell Theory
Atomic Theory
Theory of Spontaneous generation.
Theory of Evolution
10
Which statement about this cell is best supported by the information given in the diagram?
This is a prokaryote
This is a eukaryote
This is an Archaea bacteria
This is a multicellular organism
11
The absence of what organelle separates bacteria from being classified as eukaryotes?
nucleus
cell wall
mitochondrion
ribosome
12
Which is most likely, over time, to give rise to a totally new species?
falling sea level
forest fire
earthquake
geographic isolation
13
Rank the level of organization from simplest to most complex
cells, organs, tissues organ systems
cell, tissues, organ systems, organs
organs, cells, tissues, organ systems
cell, tissues, organs, organ systems
14
Which language is used for the two part naming system of organisms?
English
Spanish
French
Latin
15
Taxonomy is the study of....
Identifying organisms
classifying organisms
counting organisms
gathering organisms
16
The nucleus contains
only RNA
only proteins
only DNA
DNA, RNA, & proteins
17
Changes in a species that will allow it to survive changes in the environment are known as....
inherited traits
evolutionary traits
adaptations
ecosystems
18
Describe the location of the organelles in a eukaryotic cell.
They are protected/surrounded by walls.
They are suspended in cytoplasm
They are suspended in air
They are attached to each other
19
How are cells in a multicellular organism different from those in a single celled organism?
Cells in multicellular organisms are specialized
Multicellular organisms are smaller than unicellular.
Multicellular organisms do not move
Multicellular organisms do not have nuclei
20
Bacteria & Archaea are examples of.....
fungi
plants
prokaryotes
protists
21
Eukaryotic cells tend to be ________________ than prokaryotic cells.
larger than
the same size as
smaller than
22
Which of the following is true regarding cells walls and membranes?
Cell membranes and cell walls are rigid
Cell membranes and cell walls are fluid
Cell membranes are rigid & cell walls are fluid
Cell membranes are fluid & cell walls are rigid.
23
Which organelle digests material in cells?
golgi bodies
endoplasmic reticulum
lysosomes
vacuoles
24
A walking stick uses what characteristic to confuse predators
camouflage
mutualism
countershading
symbiosis
25
A bobcat is also called a wildcat, bay lynx, and lynx cat. For this reason,organisms have
one scientific name
many common names
one common name
many scientific names
26
Which is not a shape of prokaryote cells
tripod
bacillus
spirochete
coccus
27
Which is not a protective adaptation against herbivores?
Leaves that have a bitter taste
Leaves that store a large amount of water
Leaves that contain chemical poisonous to animals
Leaves covered with tiny, sharp spines
28
Which membrane bound organelle stores DNA?
ribosome
vacuole
lysosome
nucleus
29
The nuclear membrane.....
has pores so DNA can move in and out.
does not have pores so DNA is always protected.
has pores so materials other than DNA can move in and out.
has pores so all materials can move in and out.
30
What is the smallest unit of an organisms that is classified as a living thing?
molecule
cell
atom
organ
31
Which organelle is found in
ALL
eukaryotic cells?
centrioles
cell wall
chloroplasts
mitochondria
32
How is time a factor in evolution?
The amount of time indicates how organisms are related.
Evolution happens very quickly and can be observed
Time is of minimal importance in evolution
Evolution takes a long time and cannot usually be seen.
33
Which organelle provides pathways to move material around in a cell?
endoplasmic reticulum
vacuole
golgi bodies
lysosome
34
Binomial nomenclature......
One name naming system
two name naming system
one class naming system
two class naming system
35
Which organelle packages proteins for transport to other parts of the cell or outside the cell?
golgi bodies
vacuoles
lysosomes
endoplasmic reticulum
36
Organisms classification from most general to most specific.
domain,kingdom,phylum, class, order, family, genus, species
phylum,kingdom,class,order, family, genus, species.
kingdom,domain,phylum,class, order, family, species, genus
species,genus,family, order, class, phylum, kingdom, domain
37
Rodents eat a type of plant. Disease kills the plant. What happens to the rodent?
The rodent will double in size.
The number of rodents will increase and overpopulate
The number of rodents will decrease to a point of extinction
The rodent will not be affected
38
Schleiden & Schwann regarded the following statement about Cell Theory true.
All cells come from existing cells
The cell was discovered by Anton van Leeuwenhoek
The cell is the basic unit of all living things.
All cells are microscopic in size
