History & Misc.
This term refers to the clarity of an image or the minimum distance between two distinguishable points.
What is resolution?
This organelle is known as the “powerhouse of the cell.”
What is the mitochondrion?
This model describes the membrane as proteins floating in a flexible layer of lipids.
What is the fluid mosaic model?
This property of membranes means only certain substances can pass through while others are restricted.
What is selective permeability?
The structure responsible for producing ribosomes inside the nucleus.
What is the nucleolus?
This part of a light microscope controls how much light reaches the specimen.
What is the diaphragm?
he rough ER is studded with these, giving it a “rough” appearance.
What are ribosomes?
The diffusion of water across a selectively permeable membrane is called this.
What is osmosis?
A solution with the same solute concentration inside and outside the cell.
What is isotonic?
What are the three principles of cell theory?
1. All living things are made of cells.
2. Cells are the basic fundamental unit of life.
3. All cells come from preexisting cells.
This scientist is called the “Father of Microbiology” for observing living “animalcules.”
Who is Anton van Leeuwenhoek?
These vesicles contain hydrolytic enzymes breaking down contents within the cell.
What are lysosomes?
Transport that requires ATP to move substances against the concentration gradient.
What is active transport?
Plant cells lose water in a hypertonic environment, causing the membrane to pull away from the wall in this process.
What is plasmolysis?
Unlike animal cells, plant cells lack these structures that help organize cell division.
What are centrioles?
Rudolf Virchow stated that cells come from preexisting cells thereby rejecting this popular ideology.
What is spontaneous generation?
This organelle modifies, sorts, and packages proteins and lipids for transport.
What is the Golgi apparatus?
Paramecium use this structure to pump out excess water when living in hypotonic environments.
What is the contractile vacuole?
This organelle's primary role is to synthesize lipids.
What is the Smooth ER?
This type of pressure describes water moving into a plant cell until the wall pushes back onto the cell membrane.
What is turgor pressure (cell becomes turgid)?
These two parts of the microscope can be used to adjust the clarity of an image.
What are the coarse and fine adjustments?
Name the three main components of the cytoskeleton.
What are microtubules, microfilaments, and intermediate filaments?
Name the three types of bulk transport.
What are phagocytosis, pinocytosis, and exocytosis?
The beating of cilia and flagella is controlled by these cytoskeletal structures.
What are microtubules?
Name 4 things all cells have.