What is the basic unit of structure and function of all living things?
The cell
100
This layer of the cell protects the cell and allows materials into and out of the cell.
The cell membrane or cell envelope
100
What does DNA stand for?
What is deoxyribonucleic acid
100
Diffusion is the movement of molecules from _____ concentration to ______ concentration.
high to low concentration
100
What is the name for the microscope part that you look through?
What is eyepiece
200
From their study of plant and animal samples under the microscope, which 2 scientists said that all living things are made of cells?
Schleiden and Schwann
200
This cell structure converts food energy to cellular energy.
What is the mitochondria
200
Name the two types of nucleic acids.
What are DNA & RNA
200
Define osmosis
Osmosis is the diffusion of water or movement of water from high to low concentration.
200
What is the name for the part of the microscope that adjusts light entering the speciment?
What is the diaphragm.
300
Who coined the term "cell" from looking at the uniformity of cork cells?
Robert Hooke
300
These cell structures receive, package and distribute cell materials.
What is the Golgi Body
300
How does water help the cell? Name 3
1. Helps cell maintain constant temperature. 2. Helps cell keep size and shape. 3. Helps cell conduct chemical reactions.
300
Diffusion and osmosis are both done naturally, without the cell expending energy.
Therefore, they are both types of _____ _______.
passive transport
300
Define chromatin.
Chromatin is coiled DNA found in the nucleus of plant or animal cells. It is used to make all cell parts.
400
Why does the Cell Theory remain a theory?
Because we can't prove where the first cells came from.
400
This structure produces proteins.
What is the ribosome.
400
Name the 4 types of organic compounds found in the cell.
What is carbohydrates, lipids, proteins and nucleic acids.
400
Diffusion and osmosis both require the cell to have this structure.
What is a selectively permeable membrane.
400
Explain how cells are organized in an organism starting with "cell" and working up to the word "organism"
cells make up tissues which make up organs which make up organ systems which make up the organism.
500
State the 3 parts of The Cell Theory.
All living things are made of cells, the cell is the basic unit of structure and function of all living things, all cells are produced from other cells.
500
Name 2 ways a bacterial cell different from other cells.
It has a cell wall, but no nucleus or packaged organelles.
500
Name all 4 main organic compounds and the second types of protein and building blocks of proteins.
Lipids, carbohydrates, proteins and nucleic acids. The 2nd type of proteins is an enzyme and its building blocks are amino acids.
500
The two types of active transport are...
1. use of a transport protein 2. engulfing
500
What are 3 differences between a plant cell and an animal cell?
Plant cells have big vacuoles, cell walls and chloroplasts. (They also have few lysosomes.)