A&P Chapter 3 Quiz - MCQGeeks.com

Division of cytoplasm.

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Cytokinesis
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Mitosis
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Cell Division
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Cytoplasm

Catalysis and synthesis of fatty acids

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Golgi Apparatus
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Ribosomes
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Lysosomes
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Peroxisomes

mRNA decoded to assemble polypeptide.Converts base sequence of nucleus acids into amino acid sequence of proteins.Involves mRNA, tRNA, and rRNA.

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Microtubles
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membrane proteins
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Translation
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The gylcocalyx

Active transport is ATP dependent, whereas passive transport uses only the kinetic energy of the particles for movement across the plasma membrane

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What are the two basic steps of polypeptide synthesis?
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Which of the following statements correctly describes the plasma membrane?
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What is the difference between active and passive transport across the plasma membrane?
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Six functions of membrane proteins

Drinking liquids

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cytokinesis
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peroxisomes
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pinocytosis
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active transport

-cytoskeleton-centriole-ribosomes

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Plasma membrane
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Nonmembranous
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Golgi apparatus
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Microfilaments

Synthesis of cell's membranes

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Cytoplasm
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Golgi apparatus
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Nucleus
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Rough endoplasmic reticulum

There are two types:-Active transport-Vesicular transportBoth require ATP to move solutes across a living plasma membrane because-solutes too large for channels-solute not lipid soluble-solute not able to move down concentration gradient

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Plasma membrane
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Active Processes
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Active transport
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Peripheral proteins

It is a dynamic fuid structure that is in constant flux.

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What must happen before a body cell can begin mitotic cell division?
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Which of the following statements correctly describes the plasma membrane?
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What are the two basic steps of polypeptide synthesis?
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What is the difference between active and passive transport across the plasma membrane?

-mitochondria-peroxisomes-lysosomes-endoplamic reticulum-golgi apparatus

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Membrane lipids
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Membranous
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Mitosis
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Golgi apparatus

Loosely attached to integral proteins. Include filaments on intracellular surface for membrane support. Function as enzymes; motor proteins for shape change during cell division and muslce contraction; cell-to-cell connections.

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Active transport
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Peripheral proteins
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Ribosomes
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Endoplasmic reticulum

A voltage or electric charge across the plasma membrane.

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Receptor mediated endocytosis
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Centrosome and centriole
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Endoplasmic Reticulum
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What is a membrane potential?

It's DNA must be replicated exactly so that identical copies of the cell's genes can be passed on to each of its offspring.

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Why is the selective permeability of the plasma membrane essential for normal cell function?
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What must happen before a body cell can begin mitotic cell division?
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Which of the following is a function of the rough endoplasmic reticulum?
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Which of the following statements correctly describes the plasma membrane?

Cilia move substances across cell surfaces.Longer flagella propel whole cells.

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Endoplasmic reticulum
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Cilia and flagella
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Ribosomes
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Golgi apparatus

75% phospholipids (lipid bilayer)-phosphate heads: polar and hydrophilic.-Fatty acid tails: non-polar and hydrophobic.5% gylcolipids-Lipids with polar sugars on outer membrane surface.20% cholesterol-Increases membrane stability.

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Membrane lipids
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Cell junctions
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membrane proteins
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Integral proteins

site of protein synthesiscontain protein and rRNA

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Ribosomes
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Lysosomes
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Nucleus
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Golgi Apparatus

Digest ingested bacteria, viruses, and toxins.

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Ribosomes
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Peroxisomes
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Lysosomes
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Golgi Apparatus

Located in plasma membrane-cytosol-organelles-inclusions

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Ribosomes
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Endoplasmic Reticulum
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Cytoplasm
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Nucleus

Some cells "free"-e.g., blood cells, sperm cells.Some bound into communities.Three ways cells are bound:-Tight junctions: prevents fluids leaking.-Desmosomes: Velero-Gap junctions: Communicating.

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Golgi apparatus
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Cell junctions
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Plasma membrane
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Cytoskeleton

Ropelike fibers, attach to desmosomes.

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Cytoplasm
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Intermediate filaments
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Cytoskeleton
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Endoplasmic reticulum

All cells have some common functions. Human cells have three basic parts: plasma membrane- flexible outer boundary. Cytoplasm- intracellular fluid containing organelles. Nucleus- control center.

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Generalized cell
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Cytoskeleton
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Golgi apparatus
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Cell

Cells surrounded by interstitial fluid-contains thousands of substances, e.g, amino acids, sugars, fatty acids, vitamins, hormones, salts, waste products.Plasma membrane allows cells to -obtain from interstitial fluid exactly what it needs, exactly when it is needed. -Keep out what it does not need.Plasma membrane is selectively permeable.

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Types of membrane transport
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What is a membrane potential?
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Plasma membrane cont..
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Centrosome and centriole

Requires carrier proteins (solutes pumps) -binds specifically and reversibly with substance.Moves solutes against concentration-requires energy.

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Integral proteins
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Active transport
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Cell division
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Transcription

modifies, concentrated, and packages proteins and lipids from rough ER

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Golgi apparatus
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Plasma membrane
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Nucleus
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Endoplasmic reticulum

Lipid bilayer and proteins in constantly changing fluid mosaic. Plays dynamic role in cellular activity. Separates intracellular fluid form extracellular fluid. Intersitial fluid = extracellular fluid that surrounds the cells.

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Golgi apparatus
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Cytoplasm
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Plasma membrane
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Nucleus

Specialized junctions, wavy membrane contours, and glycoproteins.

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Which of the following factors act to bind cells together?
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What are the two basic steps of polypeptide synthesis?
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Which cell component helps to maintain the structural integrity of the cell?
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Which of the following statements correctly describes the plasma membrane?

Depending where the cell is located, the function can be very different.

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Cell
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Lysosomes
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Mitosis
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Nucleus

TransportReceptors for signal transductionAttachment to cytoskeleton and extracellular matrixEnzymatic activityIntracellular joiningCell-cell recognition

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Secondary active transport
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Cell junctions
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Six functions of membrane proteins
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Two types of active transport

Primary active transport-requires energy directly from ATP hydrolysisSecondary active transport-requires energy indirectly from ionic gradients created y primary active transport (kinetic)

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Six functions of membrane proteins
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What is a membrane potential?
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Peripheral proteins
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Two types of active transport

Larest organelles. Three regions/structures. Uninucleate, multinucleate, and a nucleate.

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Cytoplasm
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Nucleus
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Golgi Apparatus
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Endoplasmic Reticulum

Ability of solution to alter cell's water volume.-isotonic: solution with same no-penetrating solute concentration as cytosol. Ex: 0.9% NaCl, 99.1% H2O. Equal.-hypertonic: solution with higher non-penetrating solute concentration than cytosol. Ex: 2% NaCl, 98% H2O. Shrink.-hypotonic: solution with lower non-penetrating solute concentration than cytosol. Ex: 100% H2O. Burst.

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Transcription
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Mitosis
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Tonicity
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Nucleus

hormone binding to receptor

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Receptor mediated endocytosis
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Golgi apparatus
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Pinocytosis
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Active transport

Selective permeability allows cells to exclude some substances and allow others to pass into or out of the cell.

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What must happen before a body cell can begin mitotic cell division?
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Which of the following statements correctly describes the plasma membrane?
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Why is the selective permeability of the plasma membrane essential for normal cell function?
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What is the difference between active and passive transport across the plasma membrane?

Mitochondria

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Why is the selective permeability of the plasma membrane essential for normal cell function?
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Which of the following is a function of the rough endoplasmic reticulum?
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What are the two basic steps of polypeptide synthesis?
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Which cell organelle provides the majority of the ATP needed by the cell to carry out its metabolic reactions?

Transcription and translation.

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What is the difference between active and passive transport across the plasma membrane?
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What are the two basic steps of polypeptide synthesis?
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Which of the following statements correctly describes the plasma membrane?
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Which of the following is a function of the rough endoplasmic reticulum?

DNA info coded into mRNA.Transfers DNA gene base sequence to complementary base sequence of mRNA.

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Microtubles
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Cytoskeleton
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Cell junctions
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Transcription

"cell center" near nucleus.contains paired centrioles,

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Centrosome and centriole
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What is a membrane potential?
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Receptor mediated endocytosis
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Endoplasmic Reticulum

two types:rough endoplasmic reticulumsmooth endoplasmic reticulum

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Nucleus
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Golgi Apparatus
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Cytoplasm
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Endoplasmic Reticulum

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