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Which of the following organelles is found in plant cells, but not in animal cells?
One of the primary differences between plant cells and animal cells is that plant cells must be able to undergo photosynthesis. Photosynthesis takes place in the chloroplasts, which contain the pigment chlorophyll. Chloroplasts are not found in animal cells, but are found in plant cells.
Both animal and plant cells contain Golgi bodies, smooth endoplasmic reticulum, and mitochondria.
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Which of the following correctly gives the function of an organelle found within an eukaryotic cell
Mitochondria are the only organelle defined correctly. The main processes of cell respiration, namely the electron transport chain, occur in the mitochondria to produce energy in the form of ATP. Because of this, mitochondria are known as the "powerhouses" of the cell.
Ribosomes are responsible for transcribing RNA and creating new proteins. The Golgi body packages proteins into vesicles that can be transported out of the cell. Lysosomes contain enzymes that can digest old or damaged proteins. The smooth endoplasmic reticulum is responsible for synthesizing lipids and for degrading toxins, such as alcohol.
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Which of the following is nota membranous organelle?
Nonmembranous organelles are always in contact with cytosol.
Membranous organelles are surrounded by membranes that isolate their contents from the cytosol.
Ribosomes are freely scattered in the cytoplasm and thus are nonmembranous organelles.
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If a cell lacks endoplasmic reticulum (ER), one direct result will be that it cannot __________.
One of the functions of the endoplasmic reticulum is to secrete proteins.
It's other functions include: synthesis of secretory products, intracellular storage, transport, and calcium ion storage.
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What are the physical characteristics of mitochondria?
Mitochondria are organelles that have an unusual double membrane. An out membrane surround the entire organelle, and a second, inner membrane contains numerous folds, called cristae. Cristae increase the surface area exposes to the matrix of mitochondria.
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What is the outer boundary of the cell that separates the cell contents from the extracellular fluid?
The plasmalemma (plasma membrane) has a complex structure composed of phospholipids, proteins, glycolipids, and cholesterol. The phospholipids form two distinct layers that don't allow dissolved ions and water-soluble compounds to cross the plasmalemma. This makes the plasmalemma effective in isolating the cytoplasm from the surrounding fluid environment.
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Microscopic examination of a cell reveals that it contains many mitochondria. What does this observation imply about the cell?
Mitochondia produce energy (ATP) required by the cell, if a cell has large amounts of mitochondria this implies the cell has a high energy requirement.
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Which of the following is not characteristics shared by both lysosomes and peroxisomes?
Only lysosomes remove damages organelles or pathogens. Peroxisomes degrade fats and other organic compounds as well as neutralize toxic compounds.
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Which is not a major function of the endoplasmic reticulum (ER)?
The ER has four major functions: Synthesis, storage, transport, and detoxification.
Synthesis - ER membrane contains enzymes that manufacture carbohydrates, steroids, and lipids.
Storage - ER holds synthesized molecules absorbed from the cytosol.
Transport - Substances travel from place to place within the cell inside the ER.
Detoxification - Cellular toxins are absorbed by ER and neutralized by enzymes in ER membrane.
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Where does ATP synthesis occur within the cell?
The mitochondria are organelles that are often referred to as the "power plant" of the cell. Mitochondria are responsible for extracting energy from food molecules and binding it in the high energy bonds of the ATP molecule.
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Which RNA-based organelle is the site of protein synthesis within the cell?
Ribosomes are composed of a unique type of RNA, rRNA, and are located within the cytoplasm of the cell and on the surface of the rough endoplasmic reticulum. Here, proteins are assembled from amino acids piece by piece using instructions copied from DNA.
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What is the function of the Golgi apparatus within the cell?
The Golgi apparatus can be thought of as the "shipping center" of the cell. Here, proteins and other materials are packaged in vesicles which are transported to other sites in the cell or outside the cell membrane for "export".
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Which of the following organelles is not found in animal cells?
The chloroplast is unique to plant cells (and some bacteria and protists), and is the site of photosynthesis. Almost all energy used by life is captured by this organelle. All other answers listed can be found in both plant and animal cells.
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There are tiny structures found inside of every Eukaryotic cell called organelles. Each organelles carries out specific functions.
Which organelle is responsible for converting the chemical energy found in food into ATP (molecules that cells use for energy)?
The mitochondria is the "powerhouse" of the cell and converts chemical energy (sugars) into ATP during cellular respiration.
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Plants and animals are eukaryotes. They have many cell organelles in common, but there are also some differences.
Which of the following statements is true?
Plant cells have chloroplasts, which is the organelle where photosynthesis takes place, but animal cells do not. Plant cells contain both a cell membrane and a cell wall, but animal cells only have a cell membrane. Plant cells have a large vacuole and animal cells have small vacuoles. Animal cells have centrioles, but plant cells do not. All other organelles are found in both plant and animal cells.
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Organelles are tiny structures found inside cells. Each organelle has a specific function.
Which organelle is responsible for manufacturing proteins?
Ribosomes manufacture proteins, the smooth endoplasmic reticulum transports materials within the cells, the rough endoplasmic reticulum transports ribosomes which are made in the nucleolus to other parts of the cell, and the cytoplasm is the living material that cushions the cell and allows chemical reactions to occur.
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Which of the following organelles is found in plant cells, but not in animal cells?
One of the primary differences between plant cells and animal cells is that plant cells must be able to undergo photosynthesis. Photosynthesis takes place in the chloroplasts, which contain the pigment chlorophyll. Chloroplasts are not found in animal cells, but are found in plant cells.
Both animal and plant cells contain Golgi bodies, smooth endoplasmic reticulum, and mitochondria.
Compare your answer with the correct one above
Which of the following correctly gives the function of an organelle found within an eukaryotic cell
Mitochondria are the only organelle defined correctly. The main processes of cell respiration, namely the electron transport chain, occur in the mitochondria to produce energy in the form of ATP. Because of this, mitochondria are known as the "powerhouses" of the cell.
Ribosomes are responsible for transcribing RNA and creating new proteins. The Golgi body packages proteins into vesicles that can be transported out of the cell. Lysosomes contain enzymes that can digest old or damaged proteins. The smooth endoplasmic reticulum is responsible for synthesizing lipids and for degrading toxins, such as alcohol.
Compare your answer with the correct one above
Which of the following is nota membranous organelle?
Nonmembranous organelles are always in contact with cytosol.
Membranous organelles are surrounded by membranes that isolate their contents from the cytosol.
Ribosomes are freely scattered in the cytoplasm and thus are nonmembranous organelles.
Compare your answer with the correct one above
If a cell lacks endoplasmic reticulum (ER), one direct result will be that it cannot __________.
One of the functions of the endoplasmic reticulum is to secrete proteins.
It's other functions include: synthesis of secretory products, intracellular storage, transport, and calcium ion storage.
Compare your answer with the correct one above