7717519
Descripción
Test por kendra mendez, actualizado hace más de 1 año
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Creado por kendra mendez
hace más de 7 años
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Pregunta 1
Pregunta
Who used a compound microscope to see chambers within cork and named them cells?
Respuesta
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Anton can Leeuwehhoek
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Robert Hooke
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Matthias Schleiden
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Rudolf Virchow
Pregunta 2
Pregunta
The work of Schleiden and Schwann can be summarized by saying that
Respuesta
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all plants are made of cells
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all animals are made of cells
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plants and animals have specialized
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all plants and animals are made of cells
Pregunta 3
Pregunta
Which of the following is NOT a principle of cell theory?
Respuesta
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cells are the basic unit of life
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all living things are made of cells
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very few cells are able to reproduce
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all cells are produced from existing cells
Pregunta 4
Pregunta
The cell theory does NOT apply to
Respuesta
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bacteria
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plants and animals
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mutlicellular organisms
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rocks and soil
Pregunta 5
Pregunta
Electron microscopes can reveal details
Respuesta
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only in specimens that are still alive
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about the different colors of cell structures
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of cell structures only once they are stained
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1000 times smaller than those visible in light microscopes
Pregunta 6
Pregunta
Which type of microscope can produce three-dimensional images of a cell's surface
Respuesta
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transmission electron microschope
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scanning electron microscope
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simple light microscope
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compound light microscope
Pregunta 7
Pregunta
Colors seen in images made from elecron microscopes are
Respuesta
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true to life
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the colors of electrons
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added to make certain structures easier to see
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added so scientists can trace living cells through the body
Pregunta 8
Pregunta
Looking at a cell under a microscope, you note that it is a prokaryote. How do you know?
Respuesta
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The cell lacks a cytoplasm
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the cell lacks a cell membrane
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the cell lacks a nucleus
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the cell lacks genetic material
Pregunta 9
Pregunta
which of the following enclose their DNA in a nucleus?
Respuesta
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prokaryotes
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bacteria
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viruses
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eukaryotes
Pregunta 10
Pregunta
prokaryotes usually have
Respuesta
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a nucleus
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specialized organelles
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genetic material
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many cells
Pregunta 11
Pregunta
which of the following organisms are prokaryotes?
Respuesta
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plants
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animals
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fungi
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bacteria
Pregunta 12
Pregunta
Which of the following is the function of the nucleus?
Respuesta
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stores DNA
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stores sugars
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builds proteins
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packages proteins
Pregunta 13
Pregunta
Which of the following is NOT found in the nucleus?
Respuesta
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mitochondria
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nucleolus
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chromatin
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DNA
Pregunta 14
Pregunta
Which organelle breaks down organelles that are no longer useful?
Respuesta
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Golgi apparatus
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lysosome
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endoplasmic reticulum
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mitochondrion
Pregunta 15
Pregunta
Which of the following is a function of the cytoskeleton?
Respuesta
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helps a cell keep its shape
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contains DNA
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surrounds the cell
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helps make proteins
Pregunta 16
Pregunta
Which structure makes proteins using coded instructions that come from the nucleus?
Respuesta
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Golgi Apparatus
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mitochondion
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vacuole
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ribsome
Pregunta 17
Pregunta
Which sequence correctly traces the path of a protein in the cel?l
Respuesta
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ribosome, endoplasmic reticulum, gogli apparatus
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ribosome, endoplasmic reticulum, chloroplast
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ribosome, gogli apparatus, endoplasmic reticulum,
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endoplasmic reticulum, lysosome, golgi apparatus
Pregunta 18
Pregunta
which organelle would you expect to find in a plant cell but not in an animal cell?
Respuesta
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mitochondrion
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cholorplast
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smooth endoplasmic reticulum
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ribsosome
Pregunta 19
Pregunta
the primary function of the cell wall is to
Respuesta
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support and protect the cell
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store DNA
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direct the activities of the cell
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help the cell move
Pregunta 20
Pregunta
you will not find a cell wall in which types of organisms?
Respuesta
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plant
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animal
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bacteria
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fungi
Pregunta 21
Pregunta
which of the following structures serves as the cell's boundary from its environment?
Respuesta
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cell membrane
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mitochondrion
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channel protein
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chloroplast
Pregunta 22
Pregunta
The cell membrane contains channels and pumps that help move materials from one side to another. What are these pumps made of?
Respuesta
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carbohydrates
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lipids
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bilipds
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proteins
Pregunta 23
Pregunta
The diffusion of water across a selectively permeable membrane is called
Respuesta
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active transport
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passive transport
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osmosis
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osmotic pressure
Pregunta 24
Pregunta
which term descibes the relatively constant internal physical condition of an organism?
Respuesta
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homeostasis
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cell stabilization
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unicellularity
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organ system
Pregunta 25
Pregunta
which of the following is an example of an organ?
Respuesta
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heart
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nerve cell
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epithelial tissue
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digestive system
Pregunta 26
Pregunta
a group of similar cells that perform the same function are called
Respuesta
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tissue
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organ
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organ system
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division of labor
Pregunta 27
Pregunta
An organ system is a group of organs
Respuesta
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made up of similar cells
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made up of similar tissues
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work together to perform all the functions in a multicellular organism
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work together to perform a similar function
Pregunta 28
Pregunta
Which list represents the simplest to most complex levels of organization in a multicellular organism?
Respuesta
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cell, tissue, organ system, organ
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cell, tissue, organ, organ system
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organ, organ system, tissue, cell
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tissue, organ, organ system, cell
Pregunta 29
Pregunta
organisms, such as plants, that make their own food are called
Respuesta
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herterotrophs
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autotrophs
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thylakoids
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pigments
Pregunta 30
Pregunta
organisms that cannot make their own food and must obtain from external sources are called
Respuesta
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heterotrophs
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autotrophs
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thylakoids
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pigments
Pregunta 31
Pregunta
which of the following organisms makes its own food from light energy from the sun?
Respuesta
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mushroom
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amoeba
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leopard
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oak
Pregunta 32
Pregunta
which of the following is a heterotroph?
Respuesta
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mushroom
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sunflower
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wheat
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algae
Pregunta 33
Pregunta
plants gather the sun's energy with light absorbing molecules called
Respuesta
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pigments
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thylakoids
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chloroplasts
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glucose
Pregunta 34
Pregunta
plants gets the energy they need for photosynthesis by absorbing
Respuesta
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high energy sugars
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chlorophyll a
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chlorophyll b
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sunglight
Pregunta 35
Pregunta
most plants appear green because chlorophyll
Respuesta
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absorbs green light
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absorbs violet light
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does not absorb green light
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does not absorb violet light
Pregunta 36
Pregunta
a granum is a
Respuesta
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stack of chloroplasts
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stack of thylakoids
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membrane enclosing the thylakoids
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photosynthetic pigment molecule
Pregunta 37
Pregunta
the stroma is the region outside of the
Respuesta
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thylakoids
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plant cells
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chloroplasts
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all of the above
Pregunta 38
Pregunta
photosynthesis uses sunlight to convert water and carbon dioxide into
Respuesta
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oxygen and carbon
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high energy sugars and proteins
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ATP and oxygen
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oxygen and high energy sugars
Pregunta 39
Pregunta
in the overall equation of photosynthesis, 6 molecules of carbon dioxide and 6 molecules of water result in one molecule of sugar and six molecules of
Respuesta
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glucose
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water
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oxygen
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atp
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