Flashcards in Cells Deck (21):
How do you prepare a specimen for a light microscope.
Use the pipette to drop a pond of water onto the microscope slide
Gently place a coverslip over the water.
Why are stains used in the preparation of microscope slides.
Many objects are colourless when viewed under the microscope so specimens are often stained so that
they are easier to see.
Explain the significance of the microscope invention
The microscope invention opened up a whole new world with new scientific languages and classifications.
Name three scientists to our understanding of cells
Robert Hooke , rudolf Virchow, Theodor Schwann
Name different types of cells and their function
Plant cell- contain the cell membrane, nucleus cytosol, cell wall, chloroplasts, vacuole
Animal cell- cell membrane, nucleus, cytosol
What is unicellular
Describes an organism having only one cell
What is multicellular
Having many cells most plants and animals are multicellular.
Why are cells different shapes.
The size of the cell will vary between organisms and within a multicellular organism
When and who discovered the microscope
Robert Hooke the 17th century
What are the different units of measurement
How to focus the specimen
By using the eyepiece lens and the objective lens
What are the magnifications
What do cells contain
How do the organelles help the cell
Have particular jobs within the cell and function together to keep the organism alive
What are prokaryotes
The Kingdom of organisms that consist of single cells with a nucleus not surrounded by a membrane or a cell wall commonly called bacteria
What are eukaryotes
Member of the group of organisms that has a membrane around the nucleus in each of their cells
What are the five kingdoms
Animalia plantae fungi protoctista prokaryote
Name the body cells
Red blood cells
Lung epithelial cells
Adipose tissue cells
Name the plant cells
Root hair cells
What did rudolf Virchow do and when
That all cells arise from cells that already exist in 1858