Reviewer For 100 Questions Flashcards
Who is considered the “Father of Modern Taxonomy”?
Carl Linnaeus
What does “binomial nomenclature” refer to?
A two-part naming system for organisms
In the scientific name Homo sapiens, which word represents the genus?
Homo
Eubacteria are also known as:
True bacteria
Which domain contains organisms with a true nucleus?
Eukarya
Which kingdom is NOT included within the Eukarya domain?
a) Protista b) Fungi c) Plantae d) Archaea
Archea
What type of cell is characteristic of Kingdom Monera?
Prokaryotic
Cyanobacteria are known for their ability to:
Photosynthesize
Which bacterial shape is described as rod-shaped?
Bacilli/Bacillus
A chain of spherical bacteria is called:
Streptococcus
Organisms that are often described as “animal-like”?
Protozoa
Paramecium are characterized by the presence of:
Cilia
Pasteurization is a process primarily used to:
Sterilized equipment
Which of the following is NOT a characteristic of Kingdom Fungi?
a) Heterotrophic nutrition b) Cell walls made of chitin c) Photosynthesis d) Spore production
Photosynthesis
Which kingdom includes multicellular organisms that perform photosynthesis?
Plantae
The scientific name for the common house cat is Felis catus. What is the species name?
catus
What is the primary difference between archaebacteria and eubacteria at the cellular level?
Cell wall composition
What is a nucleoid?
A region in prokaryotic cells where DNA is located
What process do bacteria use for asexual reproduction?
Binary fission
All bacteria are harmful. (True/False)
False
Archaea can only survive in extreme environments. (True/False)
True
Eukarya are always multicellular. (True/False)
False
All protists are unicellular. (True/False)
False
Fungi are autotrophs. (True/False)
False instead they are heterotrophs
Plants are heterotrophs. (True/False)
False
Animals are eukaryotes. (True/False)
True
Binomial nomenclature uses three names to identify organisms. (True/False)
True
The genus name is always written first in a scientific name. (True/False)
True
All bacteria have the same shape. (True/False)
False
Define taxonomy.
the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world.
Explain the difference between a genus and a species.
A genus is a group of animals that are very similar and most likely have a common ancestor. In contrast, a species is just one type of animal. For example, zebras are in the genus called Equus.
List three domains of life
The three domains of life are Archaea, Bacteria, and Eukarya.
Give an example of an archaebacterium and its habitat.
Examples of Archaea
These extremophiles are found in anaerobic habitats or places without oxygen. They can be found in your intestines as well as the guts of cows. They can also be found in swamps. They consume gases, like hydrogen and carbon dioxide, and release methane as a byproduct.
Name three beneficial uses of eubacteria.
- for medical purposes
- food
Describe the characteristics of eukaryotic cells.
Eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes.
What is a pseudopod?
A temporary arm-like projection of a eukaryotic cell membrane that emerges in the direction of movement. Filled with cytoplasm, pseudopodia primarily consists of actin filaments and may also contain microtubules and intermediate filaments.
A protective outer layer that helps the bacteria evade the host’s immune system and adhere to surfaces.
Capsule
A rigid layer that provides structural support and shape to the cell.
Cell wall
that controls the movement of substances into and out of the cell.
Plasma membrane (cytoplasmic membrane)
The jelly-like substance filling the cell, containing the cell’s components.
Cytoplasm
A fluid inside the cytoplasm
Cytosol
The region where the bacterial DNA is located. Unlike eukaryotic cells, it’s not enclosed within a membrane-bound nucleus.
Nucleoid (DNA)
Small, circular DNA molecules separate from the main bacterial chromosome. They often carry genes for antibiotic resistance or other advantageous traits.
Plasmid
Structures responsible for protein synthesis.
Ribosome
Infoldings of the plasma membrane that increase the surface area for metabolic processes.
Mesosome
A long, whip-like appendage used for movement.
Flagellum/flagella
Hair-like appendages involved in attachment to surfaces or other bacteria (for conjugation, a type of genetic exchange).
Pilus/Pili
The control center of the cell, containing the cell’s DNA (genetic material). Think of it as the cell’s brain.
Nucleus (DNA)
A structure inside the nucleus that helps make ribosomes.
Nucleolus
The material that makes up chromosomes, which are made of DNA and proteins.
Chromatin
A network of membranes studded with ribosomes. It’s involved in protein synthesis and transport.
Rough endoplasmic reticulum (RER)
A network of membranes without ribosomes. It’s involved in lipid (fat) synthesis and other metabolic processes.
Smooth endoplasmic reticulum (SER)
Tiny structures that make proteins. They’re found free-floating in the cytoplasm or attached to the RER
Ribosomes
Processes and packages proteins and lipids for transport within or out of the cell. Think of it as the cell’s post office.
Golgi apparatus (Golgi body)
The powerhouses of the cell, generating energy (ATP) through cellular respiration.
Mitochondria
Contains enzymes that break down waste materials and cellular debris. Think of it as the cell’s recycling center.
Lysosome
Involved in cell division.
Centrioles
Hair-like structures on the cell surface that help with movement or sensing.
Cilia
Tiny finger-like projections on the cell surface that increase surface area for absorption.
Microvilli
Located just inside the cell wall, this is a thin, flexible layer that controls what enters and exits the cell. It’s like a gatekeeper.
Cell membrane
The membrane surrounding the nucleus.
Nuclear envelope
The fluid inside the nucleus.
Nucleoplasm
A network of membranes involved in making and transporting proteins and other molecules.
Endoplasmic reticulum (ER)
A large, fluid-filled sac that stores water, nutrients, and waste products. It helps maintain the plant cell’s shape and turgor pressure (firmness).
Vacuole
Contains chlorophyll, the green pigment that captures light energy for photosynthesis. Photosynthesis is how plants make their food.
Chloroplast
Tiny channels that connect adjacent plant cells, allowing for communication and transport of substances between them.
Plasmodesmata
Small sacs that transport materials within the cell.
Vesicle
Organelles are involved in various metabolic processes, including breaking down fatty acids.
Peroxisome
A network of protein filaments that provides structural support and helps with cell movement.
Cytoskeleton
What are the three living things?
Animals, plants and microorganisms
He is known as a philosopher and the father of biology, he discovered botany that led to plants. Who is he?
Aristotle
He is known as the father of modern biology, his theory “The evolution of humans”. Who is he?
Charles Darwin
He is known as the father of modern biology, his theory “The evolution of humans”. Who is he?
Charles Darwin
The two individuals who coined the term “Biology” made a significant impact on our understanding of life.
Gottfried Reinhold treviranus and Jean Baptiste Lamarck
What are the four scientific methods for the investigator process?
- Observation (thought experimentation)
- Hypothesis (educated guess)
- Experimentation
- Analysis or conclusion
What material is used in the scientific method?
Tool
What are the 15 organizations of life
- Atom
- Molecule
- Macromolecule
- Organelle
- Cell
- Tissue
- organ
- Organ system
- Organism
- Individual
- Population
- Community
- Ecosystem
- Biome
- Biosphere
This is the basic unit of matter and the smallest particle on the earth 🌎.
Atom
What is a molecule?
A group of atoms bounded together
A large molecule, such as protein carbohydrates, nucleic acid, fats, and lipids.
Macromolecule
Also known as a small organ, specialized structure within a cell.
Organelle
The basic unit of life
Cell
A group of similar cells working together. The purpose of tissue is to repair our body, and that is the reason for having hair.
Tissue
A group of tissues working together or performing a specific function.
Organ