Cell Biology
Correct!
Nucleolus – a roughly spherical sub-organelle of the cell nucleus. Its main function is to produce and assemble ribosome components (i.e. RNA, proteins).
Nucleolus – a roughly spherical sub-organelle of the cell nucleus. Its main function is to produce and assemble ribosome components (i.e. RNA, proteins).
Correct!
Nucleus – a membrane-enclosed organelle that is the control center of the cell and contains the cell’s genetic material which is organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes.
Nucleus – a membrane-enclosed organelle that is the control center of the cell and contains the cell’s genetic material which is organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes.
Correct!
Ribosome – complexes of RNA and protein that are found in all cells. Ribosomes build proteins from the genetic instructions held within messenger RNA.
Ribosome – complexes of RNA and protein that are found in all cells. Ribosomes build proteins from the genetic instructions held within messenger RNA.
Correct!
Vesicle – a relatively small intracellular, membrane-enclosed sac that stores or transports substances.
Vesicle – a relatively small intracellular, membrane-enclosed sac that stores or transports substances.
Correct!
Rough Endoplasmic Reticulum – sections of the endoplasmic reticulum which are studded with protein-manufacturing ribosomes giving it a “rough” appearance (hence its name). Its primary function is the synthesis of enzymes and other proteins.
Rough Endoplasmic Reticulum – sections of the endoplasmic reticulum which are studded with protein-manufacturing ribosomes giving it a “rough” appearance (hence its name). Its primary function is the synthesis of enzymes and other proteins.
Correct!
Golgi Apparatus – an organelle that processes and packages macromolecules such as proteins and lipids after their synthesis and before they make their way to their destination; it is particularly important in the processing of proteins for secretion. It forms a part of the cellular endomembrane system.
Golgi Apparatus – an organelle that processes and packages macromolecules such as proteins and lipids after their synthesis and before they make their way to their destination; it is particularly important in the processing of proteins for secretion. It forms a part of the cellular endomembrane system.
Correct!
Cytoskeleton – a cellular “scaffolding” or “skeleton” contained within the cytoplasm and composed of three types of fibers: microfilaments, intermediate filaments, and microtubules.
Cytoskeleton – a cellular “scaffolding” or “skeleton” contained within the cytoplasm and composed of three types of fibers: microfilaments, intermediate filaments, and microtubules.
Correct!
Smooth Endoplasmic Reticulum – sections of endoplasmic reticulum which are not studded with ribosomes and are connected to the nuclear envelope. It functions in several metabolic processes, including synthesis of lipids, metabolism of carbohydrates and calcium concentration, drug detoxification, and attachment of receptors on cell membrane proteins.
Smooth Endoplasmic Reticulum – sections of endoplasmic reticulum which are not studded with ribosomes and are connected to the nuclear envelope. It functions in several metabolic processes, including synthesis of lipids, metabolism of carbohydrates and calcium concentration, drug detoxification, and attachment of receptors on cell membrane proteins.
Correct!
Mitochondrion – a membrane-enclosed organelle, often called the “cellular power plant”. Mitochondria generate most of the cells’ supply of adenosine triphosphate (ATP), the body’s main source of energy.
Mitochondrion – a membrane-enclosed organelle, often called the “cellular power plant”. Mitochondria generate most of the cells’ supply of adenosine triphosphate (ATP), the body’s main source of energy.
Correct!
Vacuole – membrane-bound compartments within some eukaryotic cells that can serve a variety of secretory, excretory, and storage functions.
Vacuole – membrane-bound compartments within some eukaryotic cells that can serve a variety of secretory, excretory, and storage functions.
Correct!
Cytoplasm – a gelatinous, semi-transparent fluid that fills most cells, it includes all cytosol, organelles and inclusions.
Cytoplasm – a gelatinous, semi-transparent fluid that fills most cells, it includes all cytosol, organelles and inclusions.
Correct!
Lysosome – organelles that contain digestive enzymes (acid hydrolases). They digest excess or worn-out organelles, food particles, and engulfed viruses or bacteria
Lysosome – organelles that contain digestive enzymes (acid hydrolases). They digest excess or worn-out organelles, food particles, and engulfed viruses or bacteria
Correct!
Centriole – a barrel shaped microtubule structure that is an important part of centrosomes. The walls are usually composed of nine triplets of microtubules (protein of the cytoskeleton). The position of the centriole determines the position of the nucleus and plays a crucial role in the spatial arrangement of cell organelles.
Centriole – a barrel shaped microtubule structure that is an important part of centrosomes. The walls are usually composed of nine triplets of microtubules (protein of the cytoskeleton). The position of the centriole determines the position of the nucleus and plays a crucial role in the spatial arrangement of cell organelles.
References
Text – Alberts, Bruce, et al. (2002) The Molecular Biology of the Cell (4th edition). Garland Science
Text – Lodish, Harvey, et al. (2004) Molecular Cell Biology (5th Edition). W. H. Freeman
Click here to close this window.
Take a Tour “Through the Virtual Cell”
Test your Knowledge
References
- Text – Alberts, Bruce, et al. (2002) The Molecular Biology of the Cell (4th edition). Garland Science
- Text – Lodish, Harvey, et al. (2004) Molecular Cell Biology (5th Edition). W. H. Freeman