which of the following organisms do not have cell walls? 1.plants 2.fungi 3.bacteria 4.animals
TRANSCRIPT
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Which of the following organisms do NOT have cell walls?
1. plants
2. fungi
3. bacteria
4. animals
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Which of the following is NOT true of plasma membranes?
1. Folded membranes increase surface area for efficiency.
2. Folded membranes do not form compartments in the cell.
3. Endoplasmic reticulum is made up of folded membranes.
4. Ribosomes are sometimes attached to folded membranes.
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Folded membranes are an advantage to a cell because _____.
1. cell processes can be more efficient
2. the membranes provide a large surface area
3. the membranes form interconnected compartments
4. all of these
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All living things are made up of _____.
1. cells
2. cork
3. wastes
4. cellulose
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What do electron microscopes use to focus and magnify an image?
1. glass lenses
2. X rays
3. electron beams
4. light
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Each of the following is a main idea of the cell theory except _____.
1. all organisms are composed of cells
2. the cell is the basic unit of organization of organisms
3. all cells are similar in structure and function
4. all cells come from preexisting cells
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The scientist who first described living cells as seen through a simple microscope was
_____.1. van Leeuwenhoek
2. Schleiden
3. Hooke
4. Schwann
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If a cell contains a nucleus, it must be a(n) _____.
1. plant cell
2. eukaryotic cell
3. animal cell
4. prokaryotic cell
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A plasma membrane is made up of a(n) _____.
1. cholesterol layer
2. enzyme bilayer
3. phospholipid bilayer
4. protein layer
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Which is not a way that Figure 7-2 is a model of cellular theory?
1. bricks are small units in a building
2. bricks are solid
3. there are many bricks in a building
4. bricks are organized to make a larger unit
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What would happen to the structure in Figure 7-4 if part D is completely removed?
1. the ends would become tangled
2. it would disintegrate
3. it would have holes in it
4. it would collapse in on itself
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Where are you least likely to find water in the structure shown in Figure 7-4
(hydrophobic)
1. A
2. B
3. C
4. E
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Which structure in Figure 7-6 is the cell control center?
1. A
2. G
3. I
4. M
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Which structure in Figure 7-6 maintains homeostasis?
1. B
2. D
3. H
4. L
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Which structure in Figure 7-6 transforms energy?
1. C
2. G
3. J
4. K
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Which structure in Figure 7-6 sorts and transports?
1. B
2. G
3. I
4. M
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A cell contains the structure shown in Figure 7-7. What other cell structure that is not found in all eukaryotic cells is likely to
be found in this cell?
1. mitochondria
2. ribosomes
3. cell wall
4. plasma membrane
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One advantage of electron microscopes over light microscopes is their _____.
1. size
2. higher magnification
3. two-dimensional image
4. use of live specimens
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Because the phospholipid molecules and some proteins are free to move, the plasma
membrane is said to be a ____.1. bilayer
2. solid
3. fluid mosaic
4. fatty acid
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Cell structures that contain digestive enzymes are ____________________.
1) mitochondria
2) lysosomes
3) ribosomes
4) Golgi apparatus
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In a cell, the sites of protein synthesis are the ____________________.
1) mitochondria
2) lysosomes
3) ribosomes
4) Golgi apparatus
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The small, membrane-bound structures inside a cell are ____________________.
1) organs
2) nuclei
3) organelles
4) gross
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The movement of materials into and out of the cells is controlled by the ____________________.
1. organelles
2. nucleus
3. brain
4. plasma membrane
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An organism with a cell that lacks a true nucleus is a(n) ____________________.
1. paramecium
2. eukaryote
3. prokaryote
4. mitochondria
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In a cell, the breakdown of molecules in order to release energy occurs in the ____________________, they are the
“powerhouses” of the cell.
1. mitochondria2. lysosomes3. ribosomes4. Golgi apparatus
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Short, hairlike projections used for locomotion are ____________________.
1. really short legs
2. cilia
3. flagella
4. microtubules
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In plants, the structures that transform light energy into chemical energy are called
____________________.
1. nucleus
2. nucleolus
3. endoplasmic reticulum
4. chloroplasts
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The network of tiny rods and filaments that forms a framework for the cell is called the
____________________.
1. cilia
2. flagella
3. cytoskeleton
4. plasma membrane
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The pigment that gives plants their green color is ____________________.
1. chlorophyll
2. green crayons
3. ink
4. lysosomes
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The folded system of membranes that forms a network of interconnected compartments inside the cell is called the
_________________________.
1. Golgi apparatus
2. mitochondria
3. endoplasmic reticulum
4. ribosomes
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The functions of a eukaryotic cell are managed by the ____________________.
1. nucleus
2. nucleolus
3. mitochondria
4. endoplasmic reticulum
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A structure outside the plasma membrane in some cells is the ____________________.
1. cytoskeleton
2. nucleus
3. cell membrane
4. cell wall