3.1: Cell Theory
3.2: Cell Organelles
3.3: Cell Membrane
3.4: Diffusion & Osmosis
3.5: Active Transport, Endocytosis, and Exocytosis
100
Which invention played the biggest role in the discovery of cells by early scientists?
What is the compound microscope?
100
What is a network of proteins that supports and gives shape to a cell?
What is a cytoskeleton?
100
Which model did scientists develop to describe the cell membrane?
What is the fluid mosaic model?
100
Which phrase best describes passive transport? [or] How much energy does passive transport require from the cell?
What is "requires no energy from the cell"?
100
Unlike passive transport, active transport requires this.
What is energy from the cell?
200
The cell theory states that all organisms are made of cells; cells are the most basic unit of life; and ___________________________.
What is "all existing cells are produced by other living cells"?
200
What is the main function of the Golgi apparatus?
What is to process and deliver proteins?
200
Which word best describes the structure of the cell membrane?
What is "layered" (or "bi-layered")?
200
Water moves into a cell when the solution surrounding the cell is _______________.
What is hypotonic?
200
Which process uses proteins to move molecules against a concentration gradient?
What is active transport?
300
What is the jellylike substance that is contained inside the cell membrane?
What is cytoplasm?
300
Which organelles can be found in the cytoplasm and on the surface of the endoplasmic reticulum?
What are ribosomes?
300
What is a phospholipid composed of?
What is a polar head and a nonpolar tail?
300
What is the term for the diffusion of water across a semipermeable membrane?
What is osmosis?
300
Cells use active transport proteins to do this.
What is obtain molecules they need?
400
Unlike a eukaryotic cell, a prokaryotic cell does not have ________.
What is a nucleus?
400
Which organelle contains enzymes that break down damaged cell parts?
What are lysosomes?
400
Which phrase best describes the property of selective permeability?
What is "some molecules pass through, while others do not"?
400
The movement of molecules down a concentration gradient through transport proteins in the cell membrane is a type of ______________________.
What is facilitated diffusion?
400
What is a membrane-bound sac used to transport substances into and out of cells?
What is a vesicle?
500
Specialized structures that work together inside a cell are called ___________________.
What are organelles?
500
What are the main differences between plant and animal cells?
What is "plant cells have cell walls and chloroplasts; animal cells do not"?
500
A ligand produces a response in a cell if it finds the right kind of _______________________.
What is a receptor?
500
What do you call the difference in the concentration of dissolved particles from one location to another?
What is a concentration gradient?
500
Which process is used to release insulin from pancreatic cells into the bloodstream?
What is exocytosis?
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