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WorksheetsNSBHS 20-21 - DIA #2 Review
Total questions: 40
Worksheet time: 1hrs 20mins
Why has knowledge about the cell theory changed over the last few hundred years?
Improvements in technology have provided more accurate data and new observations.
Scientists are better at making inferences because they are smarter.
Theories have been shown to be educated guesses.
New cellular organelles have evolved to replace old organelles.
The cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?
Cells form through spontaneous generation
All living things are made of cells
All cells come from other preexisting cells
Cells are the basic structural and functional units of life
All cells come from other preexisting cells
All living things are made of cells
Cells are the basic structural and functional units of life
Cells form through spontaneous generation
The combined observations of Schleiden, Schwann, Virchow, and Hooke resulted in the formation of the Cell Theory. Which of the following best describes how theories are created?
Individual contributions by many scientists that offer new scientific evidence are combined into a theory
New tools need to be created in order to propose new scientific knowledge that turn into a law
Over long periods of time scientists only record observations that support a hypothesis
Several famous scientists used repeated observations of the same phenomena to predict the end of a process
A scientist wants to view the detailed, specific inner folds of a mitochondria found in individual animal cells and how the number of folds contribute to energy output. Which of the following instruments would be best for the scientist to use?
A transmission electron microscope
A scanning electron microscope
A compound light microscope
A dissecting microscope
Under a microscope, you observe a cell has a nucleus, ribosomes and a cell membrane, but no cell wall. Which is the correct classification for this cell?
It is an animal cell.
It is a prokaryotic cell.
It is a plant cell.
It is a bacterial cell.
Why are cristae important for the function of the mitochondria?
Cristae increase the surface area for energy production.
Cristae are critical for the structure of the mitochondria, because they support its shape.
Cristae denature enzymes that could be harmful to the mitochondria.
Cristae increase the surface area for photosynthesis to occur.
Cell X is a prokaryotic cell and cell Y is a eukaryotic cell
Cell X is an archaea cell and cell Y is a bacterial cell
Cell X is a red blood cell and cell Y is a muscle cell
Cell X is a plant cell and cell Y is an animal cell
Which statement best describes the cell/plasma membrane of a living plant cell?
It selectively regulates the passage of substances in and out of the cell to maintain homeostasis
It is equally permeable to all substances found inside and outside the cell
It is a double protein layer containing floating molecules of lipids
It is composed of only proteins and carbohydrates
Animal Cell
Plant Cell
Bacteria Cell
Prokaryotic Cell
B, E, G
B, F, H
B, A, K
E, G, H
A plant cell
An animal cell
A virus
A prokaryotic cell
D
A
B
C
A and B
A
B and C
C
Which way would the purple molecules move through the semi permeable membrane?
From the A side to the B side
From the B side to the A side
None of the purple molecules would move.
A cell with its flagellum labeled is shown in the image. Flagella are organelles which are found in both eukaryotes and prokaryotes.
What is the primary function of flagella?
Digesting food
Making cells motile (mobile)
Expelling toxic compounds
Performing energy conversions
Which organelle receives proteins and materials from the endoplasmic reticulum, packages them, and distributes them?
lysosomes
golgi apparatus
ribosomes
endoplasmic reticulum
The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Because other substances are blocked from entering, this membrane is called
Perforated
Semi-permeable
Non-conductive
Permeable
The diagram shows an animal cell in a beaker containing a solution of sugar and water. The cell membrane is permeable only to water. Which statement describes the relationship between the animal cell and the contents of the beaker?
There is a higher concentration of water inside the cell than outside the cell.
There is a higher concentration of sugar inside the cell than outside the cell
There is an equal concentration of water inside the cell as outside the cell
There is an equal concentration of sugar inside the cell as outside the cell
A freshwater plant is placed in a container of saltwater. What will most likely happen to the cells of the plant?
They will swell because water will move into them
They will swell because salt will move into them
They will shrink because water will move out of them
The will shrink because salt will move out of them
Some students used vinegar to dissolve away the shells of three eggs and used these eggs as models of human red blood cells. The students observed the changes in the eggs when they were placed in different solutions. Which statement best describes the role of the cell membrane in this model?
The cell membrane is a impermeable barrier that prevents water from entering the cell
The cell membrane allows solutes to enter the cell which causes the cell to shrink
The cell membrane allows water to enter and leave the cell
The cell membrane removes solutes from the environment
Cell membranes are selectively permeable. Passive transport and active transport are methods of moving solutes across cell membranes. Which of the following accurately describes the difference between passive transport and active transport?
Passive transport does not require energy, but active transport does
Passive transport requires carrier proteins, but active transport does not
Passive transport works against a concentration gradient, but active transport does not
Passive transport can move molecules both in and out of a cell, but active transport can not
Active transport
Passive transport
Diffusion
Facilitated diffusion
Which organelle is colored blue in this photo?
Nucleus
Cell membrane
Cell wall
Vacuole
What are the "protein-makers" of a cell?
Ribosomes
Mitochondria
ER
Golgi Body
What is the difference between mitochondria and chloroplast?
Mitochondria produces energy and chloroplasts breaks down energy
There is no difference. They are the same.
Mitochondria breaks down energy from food and chloroplasts produce energy from sunlight.
Mitochondria contains DNA and chloroplasts are green
