Cultiring Practicle And Some Other Things I Didnt Know Flashcards
(25 cards)
What is the primary purpose of culturing microorganisms?
To grow and study microorganisms under controlled conditions.
True or False: All microorganisms can be cultured in a laboratory.
False
What is an aseptic technique?
A set of procedures used to prevent contamination when culturing microorganisms.
Fill in the blank: The medium used to grow microorganisms is called __________.
culture medium
What is the role of agar in microbiological culture media?
Agar serves as a solidifying agent for culture media.
Define ‘differentiation’ in the context of stem cells.
Differentiation is the process by which stem cells develop into specialized cell types.
What are stem cells?
Undifferentiated cells that have the potential to develop into various cell types.
What is the difference between embryonic and adult stem cells?
Embryonic stem cells can become any cell type, while adult stem cells are limited to specific lineages.
True or False: Specialized cells cannot divide.
True
What is a characteristic of specialized cells?
They have specific structures and functions tailored to their role in the body.
Which type of cell is responsible for transmitting nerve impulses?
Neuron
Multiple choice: Which of the following is NOT a type of specialized cell? A) Muscle cell B) Blood cell C) Stem cell D) Epithelial cell
C) Stem cell
Fill in the blank: __________ are cells that can give rise to all cell types in the body.
Pluripotent stem cells
What does ‘multipotent’ mean in reference to stem cells?
Multipotent stem cells can differentiate into a limited range of cell types.
What is the significance of cell differentiation in multicellular organisms?
It allows for the development of diverse tissues and organs with specialized functions.
True or False: All cells in the human body have the same DNA.
True
What is the main factor that determines how a stem cell differentiates?
The external signals and environment surrounding the stem cell.
Define ‘culture medium’ in microbiology.
A nutrient solution used to grow microorganisms in a laboratory.
What is one common application of culturing microorganisms?
To produce antibiotics or vaccines.
Multiple choice: Which of the following is a common method for isolating microorganisms? A) Streak plate method B) PCR C) Gel electrophoresis D) Centrifugation
A) Streak plate method
What is the purpose of the incubator in microbiological culture?
To provide optimal temperature and conditions for microbial growth.
What is a colony in microbiology?
A visible mass of microorganisms all originating from a single mother cell.
True or False: Microorganisms can be cultured on solid, liquid, or semi-solid media.
True
What is the importance of using sterile techniques in culturing microorganisms?
To prevent contamination and ensure accurate results.
