Laboratory Room and Instruments Quiz

A laboratory room is designed for scientific research, experimentation, analysis, and measurement.

Safety goggles protect your eyes from chemicals, heated materials, and potential projectiles.

A cluttered work area increases the risk of accidents and makes it difficult to move around safely.

<p>Prokaryotic cells lack a membrane-bound nucleus, while eukaryotic cells have a defined nucleus containing their DNA.</p> Signup and view all the answers

<p>Bacteria are examples of prokaryotes.</p> Signup and view all the answers

<p>Safety signs communicate important safety information, indicating potential hazards and protective measures.</p> Signup and view all the answers

<p>Washing hands removes chemical residues and prevents accidental ingestion or contact with other parts of the body.</p> Signup and view all the answers

<p>Knowing the location of safety equipment allows for quick and efficient responses in case of accidents, potentially preventing serious injuries.</p> Signup and view all the answers

<p>Prokaryotic cells have circular DNA without histones, while eukaryotic cells have linear DNA associated with histones.</p> Signup and view all the answers

<p>Membrane-bound organelles allow for compartmentalization, enabling specialized functions within the eukaryotic cell, enhancing efficiency and complexity.</p> Signup and view all the answers

<p>Prokaryotic cells utilize binary fission, a simpler process compared to eukaryotic mitosis and meiosis.</p> Signup and view all the answers

<p>Bacteria are single-celled organisms, whereas fungi are multicellular and viruses are acellular, lacking a cellular structure.</p> Signup and view all the answers

<p>Free-living bacteria can survive independently, while parasitic bacteria rely on a host organism for survival.</p> Signup and view all the answers

<p>Peptidoglycan is a unique component of bacterial cell walls, not found in other cell types.</p> Signup and view all the answers

<p>Morphology (shape) and aggregation (arrangement) are the two main methods, examples being coccus (spherical) and bacillus (rod) shapes.</p> Signup and view all the answers

<p>The size difference impacts the surface area-to-volume ratio, affecting how these cells exchange materials with their environment.</p> Signup and view all the answers

<p>Mitochondria, endoplasmic reticulum, and Golgi apparatus.</p> Signup and view all the answers

<p>Prokaryotic DNA is circular and not associated with histones, while eukaryotic DNA is linear and associated with histones.</p> Signup and view all the answers

<p>Prokaryotes divide by binary fission, a simpler process than mitosis or meiosis in eukaryotes. Binary fission involves the replication of the circular chromosome and division of the cell into two identical daughter cells.</p> Signup and view all the answers

<p>Bacteria are classified by their morphology (shape) and their aggregation (arrangement of cells).</p> Signup and view all the answers

<p>Multicellular: Animals, plants, fungi; Single-celled: Protists.</p> Signup and view all the answers

<p>The absence of a true nucleus and other membrane-bound organelles.</p> Signup and view all the answers

<p>Bacteria can exist as independent, free-living organisms or as parasites, depending on another organism for survival.</p> Signup and view all the answers

<p>Bacterial cell walls are composed of peptidoglycan, a unique polymer that distinguishes them from fungi and plants.</p> Signup and view all the answers

<p>Cocci (spherical), bacilli (rod-shaped), and spirochetes (spiral-shaped).</p> Signup and view all the answers

<p>Contact lenses can trap chemicals or particles that could irritate the eyes, making it harder to remove them quickly in case of an emergency.</p> Signup and view all the answers

<p>Prokaryotic cells lack a membrane-bound nucleus, while eukaryotic cells possess a nucleus containing their DNA.</p> Signup and view all the answers

<p>A fire blanket is used to smother small fires, preventing the spread of flames and protecting individuals from heat.</p> Signup and view all the answers

<p>Potential hazards include chemicals, heated materials, and sharp objects.</p> Signup and view all the answers

<p>Following instructions ensures that the experiment is performed safely and accurately, reducing the risk of mistakes or accidents.</p> Signup and view all the answers

<p>A microscope is used to magnify small objects or specimens, allowing researchers to observe details that are invisible to the naked eye.</p> Signup and view all the answers

<p>The loose sleeves can get caught in lab equipment or chemicals, posing potential safety risks.</p> Signup and view all the answers

<p>Beakers are used for mixing, holding, and heating liquids during experiments.</p> Signup and view all the answers

<p>An eyewash station provides a continuous stream of water to flush out chemicals or other irritants from the eyes.</p> Signup and view all the answers

<p>A Petri dish is a shallow, lidded container used to grow cultures of microorganisms, such as bacteria or fungi.</p> Signup and view all the answers

A controlled environment for scientific research and experimentation.

Safety guidelines to follow in a laboratory environment.

Protective eyewear to shield eyes from hazards in labs.

Simple, single-celled organisms without a membrane-bound nucleus.

Complex cells with a defined, membrane-bound nucleus.

Region in prokaryotic cells where DNA is located.

Standardized symbols communicating safety information in labs.

The act of tidying up after laboratory experiments.

Cells with a nucleus and membrane-bound organelles; can be single-celled or multicellular.

Simple cells without a nucleus; DNA is circular and lacks histones.

Prokaryotic cells divide by binary fission; eukaryotic cells use mitosis or meiosis.

Prokaryotic ribosomes are 70S, eukaryotic ribosomes are 80S in cytoplasm.

Prokaryotic cells have peptidoglycan; eukaryotic plants have cellulose, fungi have chitin.

The study of microscopic organisms, including bacteria, fungi, and viruses.

Bacteria are classified by morphology and aggregation using microscopy.

Bacteria can take various shapes: cocci (spherical), bacilli (rod-shaped), and spirochetes (spiral-shaped).

Specialized tools used in scientific experiments.

Devices intended to protect users in a lab environment.

Goggles protect your eyes from chemical splashes or projectiles.

Know locations of safety equipment like fire extinguisher and eyewash.

Always wash hands after handling any chemicals during experiments.

Keep your work area uncluttered to ensure safety and focus.

No eating or drinking during lab experiments to avoid contamination.

Tie back long hair and roll up loose sleeves to avoid hazards.

Organisms are classified as prokaryotes or eukaryotes based on cell structure.

Organelles enclosed by membranes, like mitochondria and Golgi apparatus.

Type of asexual reproduction in prokaryotes dividing into two identical cells.

Cell division in eukaryotes resulting in two identical daughter cells.

Specialized cell division creating four genetically diverse gametes.

Prokaryotic ribosomes are 70S, while eukaryotic ribosomes are 80S.

Bacteria grouped by shape and arrangement: cocci, bacilli, spirochetes.

Grouping microorganisms into categories like unicellular, multicellular, or acellular.