| A | B |
|---|
| Reproduction is an important life characteristic becasue all living things | replace themselves |
| For experiments to be considered valid, the results must be______. | repeatable |
| Which of the following is an appropriate scientific question? | how do paremecium behave when a pond begins to dry up? |
| If data from repeated experiments do nott support the hypothesis, what is the scientist's next step? | revise the hypothesis |
| Similar- looking animals, such as dogs, can interbreed and produce fertile offspring are called | species |
| The environment includes | air,water,weather |
| Which of the following terms are most related to one another? | adaptation- evolution |
| which of the following is not an appropriate question for science to consider? | Which type of orchid flower smells the best? |
| The single factor that is altered in an experiment is the ______. | independent variable |
| The information gained from an experiment is called the ________. | data |
| The application of scientific research to society's needs is ____________. | technology |
| A procedure that tests a hypothesis is an | experiment |
| Processes that scientists ise to solve a problem | scientific method |
| An explanation of natural phenomenon with a high degree of confidence is a | theory |
| The group that is not altered in an experiment is the | control |
| The single change in the manipulated group in an experiment is an | independent variable |
| When a horse swats a fly with its tail, the fly is a ________ and the swat of the tail is a _________. | stimulus, response |
| The idea that germs are the cause of disease has been continuously supported by experiments and has, therefore, been elevated to the status of a _______. | theory |
| The standard group by which others are measured in an experiment is a _______. | control |
| If therewas one bacteria on the table top at 8:20am, and they double evey 20 minutes by fission, how many would there be at 10:20am | 64 |
| When a stimulus is applied to a living organism, it must reach a point called | threshold |
| Joining one monosaccaride after another into a long chain is called | polermization |
| If a paremecium is 310 microns long under high power (430X) and you rotate to oil immersion(1000X) how long would it be? | 310 microns |
| When a water molecule is removed between molecules the process is called | condensation reaction |
| When a living thing can make it's own food it is said to be an | autotroph |
| When joining several monosaccharides together, at what point does the structure become a starch? | 8 |
| What is the process that enables the living thing to balance its life systems when an environmental change takes place? | homeostasis |
| In the characteristic of reproduction, the ability to grow a lost part of the body is called ________. | regeneration |
| How many red blood cells fit uner low power (100x) if there were 25 under high power? | about 97 |
| Glucose is a monosaccharide which belongs to a larger group of sugars called: | hexose |
| An enzyme usually ends with the suffix | ase |
| Growth by a non-living thing occurs by adding the same material to the outside. This is called | assimilation |
| Which of the following is not a true in unsaturated fats | all carbons have hydrogen attached |
| when viewing the sugar and salt through the microscope, they were the same in all characteristics except salt was | square |
| Water is a polar | oxygen and hydrogen do not share the electrons equally |
| When a molecule has the same basic formula and a different shape it is referred to as a | isomere |
| What property of water explains why it is can travel to the top of the trees | capillary action |
| When an animal reacts to several small stimuli, given in rapid succession it is called | summation |
| When an animal breaks off a piece of itself and it later matures into an adult | fragmentation |
| What animal would you examine to find a chloroplast? | plant |
| Whichog the following pairs of terms is NOT related? | flagella- chromatin |
| Magnifications greater than 10,000 times can be obtained when using | electron microscopes |
| A bacterium is classified asa prokaryocyte becasue it | has no membrane-bound nucleus |
| Which of the following is not found in both plant and animal cells? | chloroplast |
| Which component is not stored in plastids? | amino acids |
| Which is the main ideas of Cell Theory? | all cells come from preexisting cells |
| Electron microscopes can view only dead cells becasue______. | the specimen must be in a vacuum |
| Ribosomes______. | do not have a cell wall, are not surrounded by a membrane, do not contain cytoplasm |
| _________ are membrane bound spaces that serve as temporary storage spaced | vacuoles |
| Small bumps( ribosomes) along the ER are the site of | protein synthesis |
| to fet a clear picture og a ribosome a scientist must use a | electron microscope |
| The____maintains a chemical balance within a cell by regulating the materials that enter and leave the cell | plasma membrane |
| Plants are able to grow tall becasue their cells have rigid cell walls that contain_______. | cellulose |
| Smooth ER id different from rough ER in that smooth ER has no | ribosomes |
| Although prokaryocytes lack____, they still contain DNA. | nucleus |
| THe primary structure of protein is due to___________. | sequence |
| Microfilaments and microtubules which make up the cytoskelton, are composed of | protein |
| A plant cell is green in color due to a pigment called chlorophyll which is located in the | thylakoid membrane |
| Cilia and Flagella are an arrangement of___________ and allow the cell to move | microtubules |
| Which of the following describes an isotope of the commonly occuring oxygen atom which has 8 protons, 8 electrons and 8 neutrons? | 8 electrons,8 protons and 9 neutrons |
| What are the basic building blocks of matter? | atoms |
| Which feature of water explains why water has high surface tension | water is a polar molecule |
| Which of the following will form a solution? | salt and water |
| Which of the following applies to a water molecule? | water molecules have a negatively charged end and a positively charged end |
| Which of the following carbohydrates is a polysaccharide? | starch |
| Which of the following pairs is unrelated? | starch-nucleic acid |
| An acid is any substance which forms ________in water. | hydrogen ions |
| Which of the following is not mafe of proteins? | cellulose |
| Which of the following is not a smaller subunit of a nucleotide? | glycerol |
| The helix id the basic shape of a protein and is largely due to the hydrogen bonding between the ______and_______ amino acids | 5th and 8th |
| An enzyme which joins two smaller molecules into one is said to be performing a _________. | anabolic |
| An enzyme which is responsible for the sharp curling of a protein by forming a disulfide bridge is | cysteine |
| Two factors which influence the functioning of an enzyme are | temperature and pH |
| A molecule which forms a coil and is even in the width alonf it's length is called | helix |
| The bond between two amino acids is called | peptide bond |
| Cellulose is formed by the dehydration between two or more molecules of a | beta glucose |
| An atom which has an atomic number of 20, would most likely have | 30 electrons |
| If a pH of a solution was 5 and it was changed to 8 | it would become more basic |
| How many hydrogen ions would a solution have if it started at 800,000,000 with a pH of 2 and it changed to 1? | 8,000,000,000 |
| What kind of environment is described when the concentration of dissolved substances is greater outside the cell than inside? | hypertonic |
| A groul of bacteria in a string is referred to as: | streptococcus |
| Osmosis is defined how | the diffusion of water |
| The internal call that is hypertonic relative to the outside will | undergo plasmoptysis |
| An amoeba ingests large food particles by what process | phagocytosis |
| A difference between the cell membrane and the nuclear membrane is | the nuclear membrane has annulus |
| Considering the surface area to volume ratio, what structure does the surface area represent? | plasma (cell) membrane |
| Chromosomes are made up of what? | DNA |
| What is the smallest structure of the chromosome? | centromere |
| Which of the following does not occur during interphase? | nuclear division |
| If a cell has 8 chromosomes, and it goes through mitosis how many | eight |
| The ____ are believed to be the origin of the spindle fibers. | centrioles* |
| All but which of the factors limits cell size? | elasticity of the plasma membrane |
| Which of the following is not known to cause cancer? | bacterial infections |
| Active transport requires energy which is in the form of | ATP |
| A blood cell placed in a hypertonic solution (salty) will | shrink |
| Sprinkling sugar on a bowl of strawberries creates a ____________ around the strawberries | hypertonic |
| Grocers spray water on the produce to increase the ______ inside the cells | pressure |
| Chromosomes are replicated during the ____ stage of the cell cycle. | interphase |
| The chromosomes appear as a single thread prior to being seperated into individual chromosomes | spireme |
| Most of a cell's life is spent carrying on the activities of__________. | interphase |
| The main support of the internal structure of an animal cell are | microfilaments |
| An organ consists of several kinds of | tissue |
| A ______is a segment of DNA that controls the production of a protein. | gene |
| The main difference between a bacteria and a virus is | a virus lives intracellular |
| Various chemicals move throughout the cell by way of the | ER |
| Lysosomes are made by | gogi apparatus |
| Which of the following is smallest in size | proplastid |
| Which of the following structures would be most undesirable to have | autophagic lysosome |
| Which of the following is the "face" of the cell | glycocalyx |
| Which of the structures in bacteria has a great deal to do with its virulence | capsule |
| bacteria which have flagella all around it's outside is called | periflagellated |
| Which of the following is closest to the nucleus? | annulus |
| Which of the following requires energy? | phagocytosis |
| The part of the phospholipid that likes water is | hydrophillic |
| Which of the following does not belong with the chromosome? | centrosome |
| The part of the cell structures which are believed to have a role in the formation of spindle fibers are | centromere |
| Golgi bodies are responsible for the final contruction of | lysosomes |
| The structure believed to be responsible for mad cow disease is | prion |
| If a turkey were soaked in distilled water for a day it would most likely | plasmoptysis |
| An animal that is true breeding for a trait is said to be | homozygous |
| At the end of meiosis, how many haploid cells have been formed from the original cell? | four |
| When Mendel transferred pollen from one pea plant to another, he was__________the plants. | cross- pollinating |
| During what phase of meiosis does furrowing take place? | telophase |
| A short pea plant is | homozygous ressive |
| When all the chromatin comes together to form a snakelike structure called the | spireme |
| Recessive traits appear only when an organism | homozygous |
| Mendel's use of peas eas a good choice for genetic study because | they produce many offspring, they are easy to grow, they can be self-pollinated |
| A dihybrid cross between two heterozygous parents produces a phenotypic ratio of | 9:3:3:1 |
| If two heterozygous organisms for a single dominant trait mate, the ratio of their offspring should be about | 3:1 |
| A trait that is hidden in the heterozygous condition is said to be a ______trait. | recessive |
| An organism that has two different alleles for the same characteristic is said to be | heterozygous |
| The process that results in Down's Syndrome is called | non-disjunction |
| If a species normally has 46 chromosomes,the it produces during meiosis will each have _______chromosomes | 23 |
| Metaphase I of Meiosis occurs when _______ line up next to one another at the cell's equator | homozyglous chromosomes |
| The stage of mitosis when cell parts divide is | G2 |
| Meiosis results in the direct production of | eggs, sperm, gametes |
| A cell that has successfully completed meiosis has a chromosome number called | haploid |
| If tRNA had an anticodon of UGA what would 5' DNA sequence be | TGA |
| If tRNA had an anticodon of UAU, what amino acid would pick it up? | isoleucine |
| Which DNA strand can base pair to the following DNA strand? ATGCTA | TACGAT |
| When DNA makes more DNA during mitosis, which of the following processes is followed? | protein synthesis |
| In which of the following processes does DNA unzip? | transcription and replication |
| Which of the nucleotide chains could be part of a molecule of RNA? | AUGCCA |
| Which of the following mRNA codons would cause synthesis of a protein to terminate | UAG |
| A DNA sequence of ACC would create a mRNA codon for which amino acid? | tryptophan |
| The genetic code for an oak tree is | exactly the same as for an octopus |
| Which of the following base pairs would not be found in a cell? | thymine-uracil |
| A protein is built amino acid by amino acid in during the process of | translation |
| A deer is born normal but UV rays cause a mutation in its retina.Which of teh following is the least likely? | the mutation may be passed onto their offspring |
| In the process of_______, enzymes make an RNA copy of a DNA strand. | translation |
| During the G1 phase of interphase | cell parts increase in size and maturity |
| The phosphates in the DNA attached to the | 3rd and 5th carbon of the sugar |
| When A and T pair in DNA there is a weak bond between them called | hydrogen |
| A female lab rat is exposed to X-rays.Her future offspring will be affected only if a mutation occurs in the rat's ____cells | reproductive |
| The sugar in DNA is missing an oxygen on the _____ carbon. | 2nd carbon |
| Which of the following scientists did not help unravel the structure of the DNA molecule? | Mendel |
| A mutation where one nitrogenous base is replaced by another | point mutation |
| A point mutation where one nitrogenous bas added or deleted is called__________. | frameshift mutation |
| one phosphate, one sugar, and one nitrogenous is called a | nucleotide |
