This provides an internal framework that gives the cytoplasm strength and flexibility.
What is the Cytoskeleton?
100
In broad terms. What is the function of the Nucleus?
What is the Control Center of the cell?
100
Name the three major events related to Protein Synthesis.
What is Gene Activation, Transcription, & Translation?
100
This is the net movement of a substance from an area of high concentration to an area of low concentration.
What is Diffusion?
100
This cell has no nucleus.
What is a Prokaryote?
200
These anchor the cytoskeleton to integral proteins of the plasma membrane. They give the cell additional mechanical strength and attach the plasma membrane to the enclosed cytoplasm.
What are Microfilaments?
200
Just before cell division begins, the coiling becomes tighter, forming these distinct structures.
What are Chromosomes?
200
After the complimentary strands of DNA have been separated and the histone has been removed, the enzyme RNA polymerase binds to the promoter of the gene. This binding is the first step in what process?
What is Transcription?
200
What is the difference between the high and low concentrations called?
What is a Concentration Gradient?
200
This is the name given to a cell with a nucleus.
What is a Eukaryote?
300
All animal cells capable of undergoing cell division contain a pair of these cylindrical structures composed of short microtubules. They also form the spindle apparatus associated with movement of DNA strands.
What are Centrioles?
300
Nucleoli are composed of RNA, enzymes, & proteins called what?
What are Histones?
300
These strands contain complementary triplets that will be used as a template for mRNA production.
What are Template Strands?
300
List the 5 important factors that influence diffusion rates.
What are Distance, Molecule Size, Temperature, Concentration Gradient, & Electrical Forces?
300
This is not classified as a cell but it has RNA or DNA and a protein coat. It also invades cells for reproduction.
What is a Virus?
400
Proteins are produced within cells, using information provided by the DNA of the nucleus. These organelles are responsible for protein synthesis.
What are Ribosomes?
400
A gene is a functional unit of what?
What is Heredity?
400
Protein Synthesis is the assembling of functional polypeptides in the cytoplasm. Protein synthesis occurs through which event?
What is Translation?
400
In facilitated diffusion, the molecule to be transported must first bind to what on the carrier protein?
What is a Receptor Site?
400
This type of cell has chloroplasts, a cell wall, and a large vacuole.
What is a Plant Cell?
500
Explain the difference between Smooth and Rough Endoplasmic Reticulum.
What is SER does not have any Ribosomes?
500
At intervals, the DNA strands wind around the histones, forming this complex.
What is a Nucleosome?
500
A tRNA molecule has a tail that binds an amino acid. Roughly midway along its length, the nucleotide chain of the tRNA forms a tight loop that can interact with an mRNA strand. The loop contains 3 nitrogenous bases that form what?
What is an Anticodon?
500
What is the difference between Cotransport and Countertransport?
What is Cotransport transports two substances in the same direction simultaniously, in/out of the cell. Countertransport moves one substance into the cell and the other moves out?
500
Name 3 Prokaryotic Diseases.
What are Syphilis, Gonorrhea, Impetigo, Tetanus, Anthrax, Leprosy?