Frage 1
Frage
Which of the following is TRUE of a cell membrane?
Antworten
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Cell membranes allow ALL substances to pass through easily
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It is selectively permeable so only certain molecules can pass through it
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It acts more like a fluid than a solid because its molecules are constantly moving
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Cell membranes surround all animal, plant, and bacterial cells
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It is a bilayer composed mainly of phospholipids and proteins
Frage 2
Frage
The nucleus includes all of the following EXCEPT...
Antworten
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cytoplasm
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nuclear envelope
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DNA
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nucleolus
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chromatin
Frage 3
Frage
Substances produced in a cell and exported outside of the cell would pass through...
Antworten
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endoplasmic reticulum and Golgi apparatus
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mitochondria and Golgi apparatus
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nucleus and lysosomes
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vacuoles and mitochondria
Frage 4
Frage
Cells like muscle cells which require lots of energy would probably have many...
Antworten
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nuclei
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flagella
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mitochondria
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lysosomes
Frage 5
Frage
Viruses, bacteria, and old organelles that a cell wants to get rid of are broken down in...
Antworten
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ribosomes
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mitochondria
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rough ER
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lysosomes
Frage 6
Frage
Mitochondria store the energy released when they burn glucose as...
Frage 7
Frage
The structures that synthesize proteins in cells are the...
Antworten
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ribosomes
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Golgi apparatus
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lysosomes
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vacuoles
Frage 8
Frage
The folded inner membrane in mitochondria which increases surface area for
chemical reactions to take place is called the...
Antworten
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thylakoids
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centrioles
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chromatin
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cristae
Frage 9
Frage
The dark spot seen in the nucleus in non-dividing cells where RNA for ribosomes is made is
called the...
Antworten
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cristae
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nucleolus
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plastids
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cytosol
Frage 10
Frage
The cells organelles that are surrounded by DOUBLE MEMBRANES and contain their OWN DNA are the...
Antworten
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nucleus, ER, and lysosomes
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nucleus, vacuoles, and chloroplasts
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nucleus, chloroplasts, and mitochondria
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ER, Golgi bodies, and vacuoles
Frage 11
Frage
What two molecules are used to make cell membranes?
Antworten
-
carbohydrates and glycogen
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polysaccharides and nucleic acids
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phospholipids and starch
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phospholipids and proteins
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nucleic acids and lipids
Frage 12
Frage
One difference between eukaryotes and prokaryotes is that...
Antworten
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prokaryotes are surrounded by a cell membrane and eukaryotes are not
-
prokaryotes have a nucleus and eukaryotes don't
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eukaryotes have DNA and prokaryotes don't
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eukaryotes have membranes around their nucleus and organelles and prokaryotes don't
Frage 13
Frage
Vacuoles are [blank_start]larger[blank_end] in plant cells than in animal cells.
Frage 14
Frage
Cell membranes form because the hydrophobic tails on phospholipids try to [blank_start]stay away from[blank_end] water.
Frage 15
Frage
Which of the following organelles does the Endosymbiotic Theory suggest evolved from symbiotic relationships between prokaryotic cells?
Antworten
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mitochondria
-
Golgi bodies
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chloroplasts
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ribosomes
Frage 16
Frage
The substance that dissolves to make a solution is called the...
Antworten
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diffuser
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solvent
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solute
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concentrate
Frage 17
Frage
During diffusion, molecules tend to move...
Antworten
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up the concentration gradient
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down the concentration gradient
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from an area of lower concentration to an area of higher concentration
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in a direction that doesn't depend on concentration
Frage 18
Frage
When the concentration of a solute is the same throughout a system, the system has reached...
Antworten
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maximum concentration
-
homeostasis
-
osmotic pressure
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equilibrium
Frage 19
Frage
The diffusion of water across a selectively permeable membrane through aquaporins is called...
Antworten
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active transport
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pinocytosis
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osmosis
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phagocytosis
Frage 20
Frage
Phagocytosis, pinocytosis, and exocytosis are all kinds of [blank_start]active[blank_end] transport.
Frage 21
Frage
Glucose enters most rapidly by...
Frage 22
Frage
Energy for active transport comes from a cell's...
Antworten
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Golgi complex
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nucleus
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mitochondria
-
lysosomes
Frage 23
Frage
[blank_start]Active[blank_end] transport requires energy from ATP to move substances across membranes.
Frage 24
Frage
White blood cells engulf, digest, and destroy invading bacteria using...
Antworten
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facilitated diffusion
-
pinocytosis
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phagocytosis
-
osmosis
Frage 25
Frage
Endocytosis that brings in small dissolved molecules (solutes) and fluids is called...
Antworten
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pinocytosis
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phagocytosis
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facilitated diffusion
-
osmosis
Frage 26
Frage
Golgi bodies use [blank_start]exocytosis[blank_end] to transport molecules out of cells.
Antworten
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ion channels
-
phagocytosis
-
pinocytosis
-
exocytosis
Frage 27
Frage
The pressure exerted by water is called [blank_start]osmotic[blank_end] pressure.
Antworten
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proton
-
diffusion
-
selectively permeable
-
osmotic
Frage 28
Frage
Placing an animal cell in a hypotonic solution will cause water to...
Antworten
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move into the cell
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move out of the cell