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level: Structures in a cell

Questions and Answers List

level questions: Structures in a cell

QuestionAnswer
Cells that contain a nucleus and other membrane-bound organelles.Eukaryotic Cells
What do plant and animal cells have in common in terms of cellular structure?Both plant and animal cells are eukaryotic cells, containing a nucleus, cytoplasm, cell membrane, mitochondria, and ribosomes.
A jelly-like substance within cells where most chemical reactions occur.Cytoplasm
What is the function of the cytoplasm in cells?The cytoplasm contains enzymes and facilitates various chemical reactions necessary for cellular processes.
A semi-permeable membrane that surrounds the cell, controlling the passage of substances in and out of the cell.Cell Membrane
What role does the cell membrane play in cellular function?The cell membrane regulates the types and quantities of substances entering and leaving the cell.
The organelle within a cell that contains genetic material and controls cellular activities.Nucleus
What is the primary function of the nucleus in a cell?The nucleus contains DNA and regulates gene expression, controlling the cell's activities.
Organelles responsible for cellular respiration and energy production.Mitochondria
Where does cellular respiration occur in cells, and what is its purpose?Cellular respiration occurs in the mitochondria and is the process by which cells release energy from glucose.
Cellular organelles responsible for protein synthesis.Ribosomes
What is the role of ribosomes in a cell?Ribosomes manufacture proteins by translating mRNA during protein synthesis.
Specialized structures within cells that perform specific functions.Organelles
What are the main organelles found in most eukaryotic cells, including plant and animal cells?The main organelles include the nucleus, mitochondria, ribosomes, and others responsible for various cellular functions.
Organelles found in plant cells responsible for photosynthesis.Chloroplasts
What is the function of chloroplasts in plant cells?Chloroplasts are where photosynthesis occurs, using sunlight to convert carbon dioxide and water into glucose and oxygen.
A green pigment found in chloroplasts that absorbs light energy for photosynthesis.Chlorophyll
What gives chloroplasts their green color, and what is its role in photosynthesis?Chloroplasts are green due to chlorophyll, which absorbs light energy needed for photosynthesis.
The process by which plants and some other organisms convert light energy into chemical energy to produce glucose and oxygen.Photosynthesis
What occurs during photosynthesis, and where does it primarily take place?Photosynthesis converts light energy into chemical energy, primarily occurring in chloroplasts within plant cells.
Membrane-bound organelles found in plant cells that store water, nutrients, and waste.Vacuole
What is the role of the vacuole in plant cells?Vacuoles store cell sap, which helps maintain turgor pressure, regulate cell size, and store nutrients and waste.
A weak solution of sugars and salts found in the vacuole of plant cells.Cell Sap
What is cell sap, and where is it typically found in plant cells?Cell sap is a solution of sugars and salts found in the vacuole of plant cells, helping to maintain cell structure and store nutrients.
A rigid structure surrounding the cell membrane in plant cells, providing support and protection.Cell Wall
What is the function of the cell wall in plant cells?The cell wall provides structural support, protection, and maintains cell shape in plant cells.
A complex carbohydrate that makes up the cell walls of plants.Cellulose
What is the primary component of the cell wall in plant cells, and what is its significance?Cellulose is the primary component of the cell wall, providing strength, rigidity, and support to plant cells.
Single-celled microorganisms belonging to the domain Bacteria.Bacteria
What are bacteria, and how are they classified?Bacteria are single-celled microorganisms classified as prokaryotes.
Cells that lack a distinct nucleus and membrane-bound organelles.Prokaryotic Cells
What distinguishes prokaryotic cells from eukaryotic cells?Prokaryotic cells lack a true nucleus and membrane-bound organelles, unlike eukaryotic cells.
The gel-like substance found inside cells, containing various organelles.Cytoplasm
What is cytoplasm, and what is its role in bacterial cells?Cytoplasm is the internal fluid of cells where cellular processes occur, found in bacterial cells as well.
A semipermeable membrane surrounding the cytoplasm of a cell, regulating the passage of substances in and out of the cell.Cell Membrane
What is the function of the cell membrane in bacterial cells?The cell membrane regulates the transport of molecules and ions in and out of the bacterial cell.
A rigid structure outside the cell membrane providing support and protection to the cell.Cell Wall
What is the role of the cell wall in bacterial cells?The cell wall maintains the shape and protects the bacterial cell from osmotic pressure changes.
The main genetic material of a cell, usually found in the form of a chromosome or chromosomal DNA.Chromosomal DNA
Where is the genetic material located in bacterial cells, and how is it organized?In bacterial cells, the genetic material, chromosomal DNA, is found in the cytoplasm and forms a single circular chromosome.
Small, circular DNA molecules found in the cytoplasm of bacterial cells, capable of independent replication.Plasmids
What are plasmids, and what is their significance in bacterial cells?Plasmids are small, extrachromosomal DNA molecules in bacterial cells, often containing genes for antibiotic resistance or other advantageous traits.
Whip-like structures used by cells for movement.Flagella
What are flagella, and what is their function in bacterial cells?Flagella are tail-like structures that enable bacterial cells to move and navigate through their environment.