Target 1 - Cell Theory
What was the name of the scientist who came up with the name "cells"?
Robert Hooke
Which type of organism is the most abundant on earth?
Prokaryotes
Name the function & type of cell this organelle is found in.
Nucleus
Control Cell activity
All Eukaryotic Cells
Name the function & type of cell this organelle is found in.
Mitochondria
"Powerhouse of the cell" - Site of chemical energy production
Eukaryotic Cells
In diffusion, particles move from areas of __________ concentration to areas of __________ concentration.
high; low
What scientific instrument was essential in discovery of the cell?
Microscope
Which types of cells have cell walls?
Plant, fungi & prokaryotic
Name the function & type of cell this organelle is found in.
Ribosome
Site of protein synthesis.
ALL Cells
Name the function & type of cell this organelle is found in.
Chloroplasts
Site of photosynthesis
ONLY Plant Cells
What are the three types of passive transport?
Diffusion
Osmosis
Facilitated Diffusion
Who were the 5 key contributors to the cell theory?
Robert Hooke
Anton van Leeuwenhoek
Matthias Schleiden
Theodor Schwann
Rudolf Virchow
Which type of cell has these cell characteristics?
Cell wall
Ribosomes
Capsule
Cell membrane
Circular DNA
Prokaryotic cell
Name the function & type of cell this organelle is found in.
Cell wall
Surrounds the cell and provides rigidity
Plant, Fungi & prokaryotic Cells
Name the function & type of cell this organelle is found in.
Cytoskeleton
Helps maintain shape & internal organization
Eukaryotic Cells
What type of transport uses energy?
Active transport
Endocytosis
Exocytosis
What are the three parts of the cell theory?
1. All organisms are made up of cells
2. All cells come from preexisting living cells
3. Cells are the most basic unit of life
Which type of cell has these cell characteristics?
Cell membrane
Mitochondria
Vacuole
Chloroplast
Cell Wall
Plant Cell
Name the function & type of cell this organelle is found in.
Golgi apparatus
Packages molecules, like proteins, for export OUT of the cell
Eukaryotic Cells
Name the function & type of cell this organelle is found in.
Centriole
Helps in the development of spindle fibers to aid in cell division
ONLY in Animal Cells
Why do plants die when they are put in salt water?
Plants have less salt within their cells than the salt water molecules, so therefore the salt water creates a hypertonic solution and water diffuses out of the plant cells through osmosis and the plant shrivels up and dies.
Name one thing each of these scientists contributed to the cell theory:
van Leeuwenhoek:
Schleiden:
Schwann:
Virchow:
van Leeuwenhoek:
Schleiden: proposed that all PLANTS are made up of cells
Schwann: proposed that all ANIMALS are made up of cells & came up with the first statement of the cell theory, "All living things are made up of cells."
Virchow: came up with he second part of the cell theory, "All cells come from other preexisting, living cells."
Which type of cell has these cell characteristics?
Cell membrane
Endoplasmic Reticulum
Golgi apparatus
Linear DNA
Centrioles
Name the function & type of cell this organelle is found in.
Endoplasmic Reticulum (Smooth & rough)
Synthesize proteins for use within the cell (Rough)
Synthesize lipids (Smooth)
Eukaryotic Cells
Name the function & type of cell this organelle is found in.
Nucleolus
Site of ribosome creation
All Eukaryotic cells
How are diffusion & osmosis the same?
How are they different?
They both transport molecules from an area of high concentration to an area of low concentration across a cell membrane.
Osmosis is the transfer of WATER and diffusion is the transfer of SMALL MOLECULES.