Unit 1
What is a Proton?
A particle in the nucleas that is positvely charged
what is the name of the process where energy is used to transport substances against a concentration gradient?
Active transport
What is the name of repeating events in a cycle's life?
Cell cycle
Which biochemist found that DNA contained equal amounts of thymine and Adenine?
Chargaff
What protein lowers the activation energy for a chemical reaction to occur?
Enzymes
What organelle makes sugar from carbon dioxide and water, from light energy?
Chloroplasts
Which blood type contains no antigens?
Blood type O
What lab equipment should be worn when working with chemicals that have dangerous vapors in the lab?
Fume hood
What are the materials that are changed by a chemical reaction?
Reactants
What is the name of the process in which homologous chromosomes exchange genetic material, during prophase 1 of meiosis?
Crossing-over
What is the name of a handheld device that measures out small volumes of liquid?
Micropipettor
what do scientists use to help them make accurate measurements?
Standard operating procedures
What is the name of a protein that aids in facilitated diffusion by changing shape to move these substances?
Carrier proteins
What is the name of the type of tumor that spreads to the rest of the body, in which it damages healthy tissue and grows more tumors?
Malignant Tumor
What is the name of a organism that inherits identical alleles for a trait?
homozygous
What is the chemical reaction that is carried out in a thermocycler machine that produces copies of DNA sequences?
Polymerase chain reaction