B1 - Key Concepts in Biology Flashcards
What are the two main types of cells?
Eukaryotic and Prokaryotic
True or False: Eukaryotic cells have a nucleus.
True
Fill in the blank: Prokaryotic cells lack a _____.
nucleus
Which type of cell is typically larger, eukaryotic or prokaryotic?
Eukaryotic
What organelles are found in eukaryotic cells?
Nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, among others.
True or False: All eukaryotic cells are multicellular.
False
Which type of cell is bacteria classified as?
Prokaryotic
Fill in the blank: Eukaryotic cells can be found in _____ organisms.
multicellular and unicellular
What is the main difference between prokaryotic and eukaryotic cells?
Prokaryotic cells lack a membrane-bound nucleus and organelles, while eukaryotic cells have them.
Which type of cell has DNA organized in linear chromosomes?
Eukaryotic
True or False: Prokaryotic cells reproduce by mitosis.
False
What process do prokaryotic cells primarily use for reproduction?
Binary fission
In which type of cell would you find ribosomes?
Both prokaryotic and eukaryotic cells
Multiple Choice: Which of the following is NOT a characteristic of prokaryotic cells? a) No nucleus b) Smaller size c) Membrane-bound organelles d) Unicellular
c) Membrane-bound organelles
What type of cell is yeast classified as?
Eukaryotic
Fill in the blank: The _____ is the control center of eukaryotic cells.
nucleus
True or False: Eukaryotic cells can form complex tissues and organs.
True
What is the primary function of mitochondria in eukaryotic cells?
Energy production through cellular respiration.
What is the main structural feature of prokaryotic cells?
A rigid cell wall.
Multiple Choice: Which of the following is a feature of eukaryotic cells? a) Circular DNA b) Lack of organelles c) Complex cytoskeleton d) Binary fission
c) Complex cytoskeleton
Fill in the blank: The _____ is responsible for photosynthesis in plant eukaryotic cells.
chloroplast
True or False: Prokaryotic cells can be found in extreme environments.
True
What is the genetic material in prokaryotic cells called?
Nucleoid region
Which structure protects the cell and gives it shape in prokaryotic cells?
Cell wall
Multiple Choice: Which of the following is an example of a eukaryotic organism? a) E. coli b) Amoeba c) Virus d) Archaea
b) Amoeba
What type of cell division do eukaryotic cells undergo?
Mitosis
True or False: Prokaryotic cells contain membrane-bound organelles.
False
Fill in the blank: The _____ is the protective outer layer of eukaryotic cells.
cell membrane
What is the primary function of the endoplasmic reticulum in eukaryotic cells?
Protein and lipid synthesis.
Multiple Choice: Which of the following is NOT a component of the cell theory? a) All living things are made of cells b) Cells are the basic unit of life c) All cells arise from pre-existing cells d) Cells can arise spontaneously
d) Cells can arise spontaneously
What is the role of the Golgi apparatus in eukaryotic cells?
Modification, sorting, and packaging of proteins.
Fill in the blank: Prokaryotic cells often have _____ to help them move.
flagella
True or False: All eukaryotic cells have a cell wall.
False
What type of cell is a plant cell classified as?
Eukaryotic
Multiple Choice: Which of the following is a characteristic of eukaryotic cells? a) Unicellular only b) No nucleus c) Membrane-bound organelles d) Always small
c) Membrane-bound organelles
What is the primary function of lysosomes in eukaryotic cells?
Digestion of waste materials and cellular debris.
Fill in the blank: The _____ is responsible for maintaining the shape of plant cells.
cell wall
True or False: Eukaryotic cells can be both unicellular and multicellular.
True
What is the function of the cytoskeleton in eukaryotic cells?
Provides structure and aids in cell movement.
Multiple Choice: Which of the following is a type of prokaryotic cell? a) Fungi b) Bacteria c) Protists d) Plants
b) Bacteria
Fill in the blank: The _____ is the site of protein synthesis in all cells.
ribosome
True or False: Eukaryotic cells can perform cellular respiration.
True
What type of cell is an animal cell classified as?
Eukaryotic
Multiple Choice: Which of the following structures is found in eukaryotic cells but not in prokaryotic cells? a) Ribosomes b) Nucleus c) Cell membrane d) Cytoplasm
b) Nucleus
What is the primary role of chloroplasts in plant cells?
Photosynthesis.
Fill in the blank: Prokaryotes are typically classified into two domains: _____ and Archaea.
Bacteria
True or False: All prokaryotic cells have a flagellum.
False
What type of genetic material do prokaryotic cells possess?
Circular DNA
Multiple Choice: Which of the following is a feature of eukaryotic cells? a) No organelles b) Circular DNA c) Complex structure d) Smaller size
c) Complex structure
Fill in the blank: The _____ is involved in the synthesis of lipids and steroids in eukaryotic cells.
smooth endoplasmic reticulum
True or False: Prokaryotic cells can have plasmids.
True
What is the primary function of the cell membrane?
Regulates the movement of substances in and out of the cell.