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