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Published byTabitha Bridges Modified over 9 years ago
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Which organelle breaks down organelles that are no longer useful?
Lysosome Endoplasmic reticulum Mitochondrion Golgi apparatus
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Which organelle would you expect to find in plant cells but not animal cells?
Chloroplast Mitochondrion Ribosome Smooth endoplasmic reticulum
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Looking at a cell under a microscope you note that it is a prokaryote
Looking at a cell under a microscope you note that it is a prokaryote. How do you know? The cell lacks genetic material The cell lacks a cell membrane. The cell lacks a nucleus The cell lacks cytoplasm
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Which structure in the cell stores materials, such as water, salts, proteins and carbohydrates?
Structure A Structure B Structure C Structure D
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Which structure in the cell modifies, sorts and packages proteins and other materials for storage or release from the cell? Structure B Structure A Structure C Structure D
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Which of the following conclusions could you draw about the cell shown here?
The cell is eukaryotic because it does not have a nucleus. The cell is eukaryotic because it has a nucleus. The cell is prokarotic because it has a nucleus. The cell is prokaryotic because it does not have a nucleus
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Which structure makes proteins using coded instructions that come from the nucleus?
Golgi apparatus Mitochondrion Vacuole ribosome
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Which of the following enclose their DNA in a nucleus?
Prokaryotes Bacteria Eukaryotes viruses
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Which structures are involved in cell movement?
Nucleolus and nucleus Cytoplasm and ribosomes Chromosomes Microtubules and microfilaments
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Which of the following best describes the relationship between the nucleus and the cytoplasm?
The cytoplasm is a fluid that fills the inside of the nucleus The cytoplasm is an organelle that is usually found near the nucleus The nucleus is an organelle that is surrounded by the cytoplasm
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During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will Move across the membrane to the inside of the cell Continue to move across the membrane in both directions Stop moving across the membrane Move across the membrane to the outside of the cell
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What advance in technology made the discovery of cells possible?
The particle accelerator The Ultraviolet light The centrifuge The microscope
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Which of the following organisms are prokaryotes?
Plants Animals Bacteria fungi
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Which means of particle transport is shown here?
Active transport Facilitated diffusion Osmosis diffusion
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Which of the following statements about the nucleus is NOT true?
The nucleus usually contains a nucleolus region which is where ribosome assembly begins The nucleus is surrounded by a nuclear envelope that lets materials in and out. The nucleus stores the coded instructions for making the cell’s proteins. The nucleus is the site of protein assembly
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Colors seen in images made from electron microscopes are
The colors of electrons Added so scientists can trace living cells through the body Added to make certain structures easier to see True to life
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You will NOT find a cell wall in which of these kinds of organisms?
Animals Plants Fungi bacteria
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An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
Solutes to move into the cell Water to move into the cell Water to move out of the cell Solutes to move out of the cell
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Which of the following is a function of the cytoskeleton?
Contains DNA Helps make proteins Surrounds the cell Helps a cell keep its shape
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Which of the following structures serves as the cell’s boundary from its environment?
Channel protein Mitochondrion Chloroplast Cell membrane
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Diffusion occurs because…
Cellular energy forces molecules to collide with each other Cellular energy pumps molecules across the cell membrane Molecules are attracted to one another Molecules constantly move and collide with each other
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Unlike the cell membrane, the cell wall is
Selectively permeable Composed of a lipid bilayer A rigid structure Found in all organisms
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Which of the following is an example of an organ?
Nerve cell Digestive system Heart Epethilial tissue
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Who used a compound microscope to see chambers within cork and named them “cells”?
Anton van Leeuwenhoek Rudolf Virchow Robert Hooke Matthias Schleiden
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The primary function of the cell wall is to?
Support and protect the cell Direct the activities of the cell Help the cell move Store DNA
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Which of the following is NOT a principle of the cell theory?
All living things are made of cells Cells are the basic units of life All cells are produced from existing cells Very few cells are able to reproduce
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Which organelle converts the chemical energy stored in food into compounds that are move convenient for the cell to use? Golgi apparatus Endoplasmic reticulum Chloroplast mitochondrion
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Electron microscopes can reveal details
About the different colors of cell structures Only specimens that are still alive 1000 times smaller than those visible in light microscopes Of cell structures only once they are stained
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Which of these is NOT true of cells?
They were first discovered in the 1600s They are much like empty rooms They can be found in pond water They contain a huge array of working parts
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Which means of particle transport is shown here?
Exocytosis Protein pump Endocytosis Facilitated diffusion
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Which sequence correctly traces the path of a protein in the cell?
Ribosome, endoplasmic reticulum, golgi apparatus Ribosome, golgi apparatus, endoplasmic reticulum Ribosome, endoplasmic reticulum, chloroplast Endoplasmic reticulum, lysosome, golgi apparatus
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The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of? Carbohydrates Proteins Bilipids lipids
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Which of the following is a function of the cell membrane?
Regulates the movement of materials into and out of the cell Stores water, salt, proteins, and carbohydrates Breaks down lipids, carbohydrates, and proteins from foods Keeps the cell wall in place
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Which term describes the relatively constant physical conditions of an organism?
Organ system Cell specialization Homeostasis unicellularity
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An organ system is a group of organs that
Are made up of similar tissues. Work together to perform a specific function. Are made up of similar cells. Work together to perform all the functions in a multicellular organism.
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The diffusion of water across a selectively permeable membrane is called
Osmosis. Osmotic pressure. Active transport. Pinocytosis.
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Not all cells are alike. Which of the following is NOT a true statement about differences between cells? Some cells have a nucleus, but others do not. Different kinds of cells are different sizes. Cells come in many different shapes. Most cells have a membrane, but some do not.
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Which of the following activities is NOT a way that unicellular organisms maintain homeostasis?
Growth Response to environment Cell specialization reproduction
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Which of the following is a function of the nucleus?
Stores sugars Builds proteins Stores DNA Packages proteins
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Which type of microscope can produce three-dimensional images of a cell’s surface?
Transmission electron microscope Scanning electron microscope Simple light microscope Compound light microscope
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A group of similar cells that perform a particular function is called
An organ system A division of labor A tissue An organ
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Which organelles are involved in energy conversion?
Mitochondria and chloroplasts Smooth and rough endoplasmic reticulum Golgi apparatus and chloroplasts Mitochondria and ribosomes
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The cells of unicellular organisms are
Unable to respond to changes in their environment Larger than those of multicellular organisms Specialized to perform different tasks Able to carry out all of the functions necessary for life
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Which list represents the levels of organization in a multicellular organism from the simplest level to the most complex level? Organ system, organ, tissue, cell Cell, tissue, organ system, organ Cell, tissue, organ, organ system Tissue, organ, organ system, cell
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Which means of particle transport requires input of energy from the cell?
Diffusion Osmosis Active transport Facilitated diffusion
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True or False? A cell in a multicellular organism must be able to carry out all of the functions necessary for life in order for the organism to survive.
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True or False? Ribosomes that synthesize proteins are found on the smooth endoplasmic reticulum.
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True or False? Prokaryotic and eukaryotic cells are surrounded by a thin, flexible barrier called a cell membrane.
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True or False? Plant cells have chloroplasts but do not have mitochondria
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True or False? Once equilibrium is reached, roughly equal numbers of molecules move in either direction across a semipermeable membrane, and there is no further change in concentration on either side of the membrane.
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Why is the egg that is soaking in corn syrup shrinking?
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