Podcast
Questions and Answers
What is the basic structural and functional unit of life?
What is the basic structural and functional unit of life?
The cell
Organismal activity is independent of individual and collective activity of cells.
Organismal activity is independent of individual and collective activity of cells.
False (B)
What dictates the biochemical activities of cells?
What dictates the biochemical activities of cells?
Subcellular structure
Continuity of life does not have a cellular basis.
Continuity of life does not have a cellular basis.
What organelle is responsible for producing most of a cell's ATP via aerobic cellular respiration?
What organelle is responsible for producing most of a cell's ATP via aerobic cellular respiration?
What is the function of the plasma membrane?
What is the function of the plasma membrane?
What are the three components of the fluid mosaic model?
What are the three components of the fluid mosaic model?
What is the role of glycolipids?
What is the role of glycolipids?
Phospholipids have hydrophobic and hydrophilic bipoles.
Phospholipids have hydrophobic and hydrophilic bipoles.
Which type of junction forms an impermeable barrier that encircles the cell?
Which type of junction forms an impermeable barrier that encircles the cell?
Which type of junction is an anchoring junction scattered along the sides of cells?
Which type of junction is an anchoring junction scattered along the sides of cells?
Which type of junction allows chemical substances to pass between cells?
Which type of junction allows chemical substances to pass between cells?
What is cytoplasm?
What is cytoplasm?
What are cytoplasmic organelles?
What are cytoplasmic organelles?
What are inclusions?
What are inclusions?
Which of the following are membranous cytoplasmic organelles?
Which of the following are membranous cytoplasmic organelles?
Mitochondria have a double membrane structure with shelf-like cristae.
Mitochondria have a double membrane structure with shelf-like cristae.
Ribosomes are granules containing protein and rRNA.
Ribosomes are granules containing protein and rRNA.
Free ribosomes synthesize integral membrane proteins.
Free ribosomes synthesize integral membrane proteins.
The endoplasmic reticulum is continuous with the nuclear membrane.
The endoplasmic reticulum is continuous with the nuclear membrane.
What are the two varieties of the endoplasmic reticulum?
What are the two varieties of the endoplasmic reticulum?
The external surface of the rough ER is studded with ribosomes.
The external surface of the rough ER is studded with ribosomes.
The smooth ER is responsible for the synthesis of integral membrane proteins.
The smooth ER is responsible for the synthesis of integral membrane proteins.
The Golgi apparatus is responsible for the modification, concentration, and packaging of proteins.
The Golgi apparatus is responsible for the modification, concentration, and packaging of proteins.
The Golgi apparatus is made of stacked and flattened membranous sacs.
The Golgi apparatus is made of stacked and flattened membranous sacs.
Transport vessels from the ER fuse with the trans face of the Golgi apparatus.
Transport vessels from the ER fuse with the trans face of the Golgi apparatus.
Lysosomes are spherical membranous bags containing digestive enzymes.
Lysosomes are spherical membranous bags containing digestive enzymes.
Lysosomes are involved in the digestion of ingested bacteria, viruses, and toxins.
Lysosomes are involved in the digestion of ingested bacteria, viruses, and toxins.
Lysosomes are responsible for the synthesis of new organelles.
Lysosomes are responsible for the synthesis of new organelles.
The endomembrane system is involved in producing, storing, and exporting biological molecules.
The endomembrane system is involved in producing, storing, and exporting biological molecules.
The rough ER, smooth ER, lysosomes, vacuoles, and Golgi apparatus are all part of the endomembrane system.
The rough ER, smooth ER, lysosomes, vacuoles, and Golgi apparatus are all part of the endomembrane system.
Peroxisomes contain oxidases and catalases.
Peroxisomes contain oxidases and catalases.
Peroxisomes are involved in the degradation of fatty acids and amino acids.
Peroxisomes are involved in the degradation of fatty acids and amino acids.
The cytoskeleton is a dynamic, elaborate series of rods running through the cytosol.
The cytoskeleton is a dynamic, elaborate series of rods running through the cytosol.
What are the three components of the cytoskeleton?
What are the three components of the cytoskeleton?
Microtubules are dynamic, hollow tubes made of tubulin.
Microtubules are dynamic, hollow tubes made of tubulin.
Microfilaments are dynamic strands of the protein actin.
Microfilaments are dynamic strands of the protein actin.
Intermediate filaments are strong, insoluble, and flexible protein fibers.
Intermediate filaments are strong, insoluble, and flexible protein fibers.
Centrioles are small barrel-shaped organelles located in the centrosome.
Centrioles are small barrel-shaped organelles located in the centrosome.
Centrioles are involved in organizing the mitotic spindle during mitosis.
Centrioles are involved in organizing the mitotic spindle during mitosis.
Cilia are whip-like, motile cellular extensions found on exposed surfaces of certain cells.
Cilia are whip-like, motile cellular extensions found on exposed surfaces of certain cells.
Flagella are shorter and more numerous than cilia.
Flagella are shorter and more numerous than cilia.
The nucleus is the gene-containing control center of the cell.
The nucleus is the gene-containing control center of the cell.
The nuclear envelope is continuous with the smooth ER.
The nuclear envelope is continuous with the smooth ER.
The inner membrane of the nuclear envelope is lined with the nuclear lamina, which maintains the shape of the nucleus.
The inner membrane of the nuclear envelope is lined with the nuclear lamina, which maintains the shape of the nucleus.
Tissues are groups of cells similar in structure and function.
Tissues are groups of cells similar in structure and function.
What are the four types of tissues?
What are the four types of tissues?
Epithelial tissue is composed almost entirely of cells.
Epithelial tissue is composed almost entirely of cells.
Epithelial tissue is highly vascularized.
Epithelial tissue is highly vascularized.
Epithelial tissue is regenerative.
Epithelial tissue is regenerative.
Epithelium can be classified as simple or stratified.
Epithelium can be classified as simple or stratified.
Epithelium can be classified by cell shape. What are the three classifications?
Epithelium can be classified by cell shape. What are the three classifications?
What is the function of simple squamous epithelium?
What is the function of simple squamous epithelium?
What is the function of simple cuboidal epithelium?
What is the function of simple cuboidal epithelium?
What is the function of simple columnar epithelium?
What is the function of simple columnar epithelium?
Stratified squamous epithelium protects underlying tissues in areas subjected to abrasion.
Stratified squamous epithelium protects underlying tissues in areas subjected to abrasion.
Connective tissue is the most abundant and widely distributed primary tissue type.
Connective tissue is the most abundant and widely distributed primary tissue type.
What are the three classifications of connective tissue proper?
What are the three classifications of connective tissue proper?
What are the four types of connective tissue?
What are the four types of connective tissue?
Connective tissue is involved in binding and support.
Connective tissue is involved in binding and support.
Connective tissue's only function is to provide protection.
Connective tissue's only function is to provide protection.
The most widely distributed connective tissue is loose connective tissue.
The most widely distributed connective tissue is loose connective tissue.
Which type of connective tissue is involved in storing reserve food fuel and insulating against heat loss?
Which type of connective tissue is involved in storing reserve food fuel and insulating against heat loss?
Reticular connective tissue forms a soft internal skeleton that supports other cell types.
Reticular connective tissue forms a soft internal skeleton that supports other cell types.
Dense regular connective tissue is primarily composed of irregularly arranged collagen fibers.
Dense regular connective tissue is primarily composed of irregularly arranged collagen fibers.
Dense irregular connective tissue is found in the dermis of the skin.
Dense irregular connective tissue is found in the dermis of the skin.
Hyaline cartilage is the most resilient and firm type of cartilage.
Hyaline cartilage is the most resilient and firm type of cartilage.
Hyaline cartilage is found in the costal cartilages, the nose, the trachea, and the larynx.
Hyaline cartilage is found in the costal cartilages, the nose, the trachea, and the larynx.
Elastic cartilage is similar to hyaline cartilage but contains more elastic fibers.
Elastic cartilage is similar to hyaline cartilage but contains more elastic fibers.
Fibrocartilage provides tensile strength with the ability to absorb compressive shock.
Fibrocartilage provides tensile strength with the ability to absorb compressive shock.
Bone tissue is highly vascularized and provides levers for the muscles.
Bone tissue is highly vascularized and provides levers for the muscles.
Blood tissue is only involved in transporting respiratory gases.
Blood tissue is only involved in transporting respiratory gases.
Nervous tissue is responsible for transmitting electrical signals within the body.
Nervous tissue is responsible for transmitting electrical signals within the body.
Nervous tissue transmits electrical signals from
Nervous tissue transmits electrical signals from
Skeletal muscle is voluntary and responsible for locomotion and manipulation of the environment.
Skeletal muscle is voluntary and responsible for locomotion and manipulation of the environment.
Smooth muscle is voluntary and is found in the walls of hollow organs.
Smooth muscle is voluntary and is found in the walls of hollow organs.
Cardiac muscle is involuntary and responsible for propelling blood into the circulation.
Cardiac muscle is involuntary and responsible for propelling blood into the circulation.
Homeostasis is the ability to maintain a relatively stable internal environment regardless of changes in the external environment.
Homeostasis is the ability to maintain a relatively stable internal environment regardless of changes in the external environment.
The internal environment of the body is in a static state of equilibrium.
The internal environment of the body is in a static state of equilibrium.
Chemical, thermal, and neural factors interact to maintain homeostasis.
Chemical, thermal, and neural factors interact to maintain homeostasis.
What are the three interdependent components of homeostatic control mechanisms?
What are the three interdependent components of homeostatic control mechanisms?
The control center determines the set point at which the variable is maintained.
The control center determines the set point at which the variable is maintained.
The effector provides the means to respond to stimuli.
The effector provides the means to respond to stimuli.
In negative feedback systems, the output enhances the original stimulus.
In negative feedback systems, the output enhances the original stimulus.
Positive feedback systems amplify the original stimulus.
Positive feedback systems amplify the original stimulus.
Homeostatic imbalance is a disturbance of homeostasis or the body's normal equilibrium.
Homeostatic imbalance is a disturbance of homeostasis or the body's normal equilibrium.
Overwhelming the usual negative feedback mechanisms can lead to destructive positive feedback mechanisms taking over.
Overwhelming the usual negative feedback mechanisms can lead to destructive positive feedback mechanisms taking over.
Flashcards
Cell Theory: What's the basic building block of life?
Cell Theory: What's the basic building block of life?
The basic unit of life - responsible for all physiological functions of an organism.
What is the role of the plasma membrane?
What is the role of the plasma membrane?
The thin outer layer of a cell that controls what enters and exits, maintaining the internal environment.
What is the Fluid Mosaic model?
What is the Fluid Mosaic model?
A fluid structure with a double layer of phospholipids, cholesterol, and glycolipids, with embedded proteins.
What is the purpose of a tight junction?
What is the purpose of a tight junction?
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What are desmosomes?
What are desmosomes?
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What is a gap junction?
What is a gap junction?
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What is the cytoplasm?
What is the cytoplasm?
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What is the function of mitochondria?
What is the function of mitochondria?
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What are ribosomes?
What are ribosomes?
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What is the endoplasmic reticulum (ER)?
What is the endoplasmic reticulum (ER)?
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What makes the rough ER rough?
What makes the rough ER rough?
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How does the smooth ER differ from the rough ER?
How does the smooth ER differ from the rough ER?
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What is the Golgi apparatus?
What is the Golgi apparatus?
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What is the function of lysosomes?
What is the function of lysosomes?
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What is the endomembrane system?
What is the endomembrane system?
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What is the main function of peroxisomes?
What is the main function of peroxisomes?
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What is the cytoskeleton?
What is the cytoskeleton?
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What are microtubules?
What are microtubules?
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What are microfilaments?
What are microfilaments?
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What is the role of intermediate filaments?
What is the role of intermediate filaments?
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What is the function of centrioles?
What is the function of centrioles?
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What are cilia?
What are cilia?
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What is the role of the nucleus?
What is the role of the nucleus?
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What is the nuclear envelope?
What is the nuclear envelope?
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What are nucleoli?
What are nucleoli?
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What is chromatin?
What is chromatin?
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What is a tissue?
What is a tissue?
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What is epithelial tissue?
What is epithelial tissue?
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What is connective tissue?
What is connective tissue?
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What is muscle tissue?
What is muscle tissue?
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What is nervous tissue?
What is nervous tissue?
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What is homeostasis?
What is homeostasis?
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What is a homeostatic control mechanism?
What is a homeostatic control mechanism?
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What is negative feedback?
What is negative feedback?
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What is positive feedback?
What is positive feedback?
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