Demetrius

Which of these stages will be formed when a 16-celled embryo undergoes differentiation? correct answer: Blastula Despite the differences in mature plant cells, all of them are derived from meristem cells. The three major types of tissue systems develop from the meristem. Meristems develop cells in all but which tissue? correct answer: Notocord Each cell expresses, or turns on, only a fraction of its genes. The rest of the genes are repressed, or turned off. The process of turning genes o...

What are the 2 sex linked human diseases found on the X chromosome correct answer: Colorblindness and hemophilia Two chromosomes that are located close to each other exchange parts or genetic material. What is this process called correct answer: Crossing over Which genetic condition commonly found in white Americans is treated by gene therapy correct answer: Cystic Fibrosis What is the chart that shows genetic conditions from generation to generation correct answer: Pedigree In w...

Adenine correct answer: This bonds to thymine (T) in DNA. Amino Acids correct answer: This is a molecule that contains both amino and carboxylic acid functional groups. They are the building blocks of protein. Amniocentesis correct answer: This is is a medical procedure used in prenatal diagnosis of chromosomal abnormalities in which a small amount of amniotic fluid is extracted amniotic sac surrounding a developing fetus and the fetal DNA is examined. Artificial Selection correct an...

Water has a much higher specific heat than most other covalent compounds. What do you predict might happen if water had a low specific heat instead? * correct answer: Organisms that are sensitive to changes in temperature would die. Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens? correct answ...

What is the pH scale based on? correct answer: the measure of H+ ions in a solution (lower is more H+ and higher is more OH-) What is a pH of 1-6? correct answer: acidic What is a pH of 7? correct answer: neutral what is a pH of 8-14? correct answer: basic What is a buffer? correct answer: a compound used to neutralize acids & bases to stabilize pH When is a substance considered acid rain? correct answer: when it is below 5.6 What are all organisms made of? correct answer...

Endocrine System correct answer: consists of glands that secrete chemicals into the bloodstream that help control bodily functioning Excretory System correct answer: removes waste from the body Nuclear Envelope correct answer: A double membrane that surrounds the nucleus in the cell Thylakoids correct answer: Disc like structure food in a chloroplast Grana correct answer: Arranged and stacked thylakoids Stromal Lamellae correct answer: separates the thylakoid stacks Where...

Activation Energy amount of energy needed to start a reaction Amino Acid Bounded by peptide bonds; monomer of a protein Carbohydrate (monosaccharides) main source of energy for the cell; 1 gram = 4 calories Catalyst used in enzymes to lower the activation energy and speed up the reaction Enzyme Protein and Catalyst; have an active site and a substrate Lipid (1 glycerol = 3 fatty acids) used for long term energy storage, make up the phospholipid bilayer; 1 gram = 9 calories M...

Biology EOC Pt. 4 THE FINALE Questions With Complete Solutions During the replication process, polymerase proofreads the DNA molecule so that few mistakes or ___________ occur. correct answer: Mutations. The process of converting the genetic message from DNA into amino acids is called _____________. correct answer: Transcription. Changes in the DNA sequence, or mutations, help drive what? correct answer: Evolutionary change. A mutation may be passed along to human offspring throu...

Biology EOC Study Guide| 116 Questions | With Complete Solutions

What are the 4 types of macromolecules? correct answer: carbohydrates, lipids, nucleic acids, proteins What elements make up carbohydrates? correct answer: carbon, hydrogen, oxygen What is the ratio of carbon to hydrogen to oxygen in carbohydrates? correct answer: 1:2:1 What do most carbohydrates end with? correct answer: -ose What is the function of carbohydrates? correct answer: short term energy What are the monomers of carbohydrates? Ex: glucose and fructose correct an...