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Membrane organelle with digestive enzymes |
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Alignment of the chromosomes at the cell's equator during mitosis |
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Ribonucleic acid, which derives directly from the splitting of DNA? |
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Chromosomal structure that holds sister chromatids together? |
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Spliting of the cytoplasim during cell division? |
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Prokaryotes unlike eukaryotes lack a nucleus, which stores the oranisms DNA |
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The term catabolism refers to the macromolecules being split into monomers |
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Ionic bonds are established through the sharing of electrons among the elements being involved |
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Phospholipids are the typical fats that make biological membranes? |
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Hydrolysus is a type of chemical reaction that needs water to occur |
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Mitochondria are the organelles where cellular respiraton takes place |
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ATP molecules provide the energy necessary for cells to do work |
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Cellulose is the polysaccharide stored in animal sells that is the main component of their cell wall |
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Cells are the building blocks od living organisms |
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Protien molecules act as catalyst in organisms metabolism and thus speed up metabolic reations |
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The following photomicrograph shows several human sells stained as large light purple structures with purple nuclei infected with a pathogenic organism shown as small dark purple circles. thiese pathogens are most likely.... |
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Only plant cells can successfully complete photosynthesis and the key organelle to proform this function is? |
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Atoms that bear apositve or negative charge are known as? |
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If carbon as 6 protons and 6 neutrons, it will take ---electrons to make an electrically neutral atom. |
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the building blocks for carbohydrates are |
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Making and breaking molecules in the body requires the aid of-----to help the reactins proceed |
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Protiens are made up of----strung together by---bonds |
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amino acids and peptide bonds |
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exhibits base pairing, forms a double helix, is a polymer of nucleotidew, and its nucleotides have 4 different nitrogenous bases |
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Which of the following is support for the theory of evolution which states that all like on earth comes from a common ancestor |
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all of the above-- All life on earth shares a common organic chemistry all life on earth has the same genectic material. all life on earth has the same basic celular structures. all life on earth preforms the same basic metabolic process |
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All of the following are signs that a website contains reliable scientific information except? |
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The site is set up allowing you to buy the product being described |
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Which if the following sub-atomic particles are found in the nucleus of an atom |
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which type of chemical bond connects the complementary strands of DNA molecules to each other |
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An extenisive system of internal membranes, called the ----------, is where carbohydrates and lipids are manufactured, and protiens are made that will be exported from the cell. |
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The formultion of hypotheses represents a critical step in the scientific process. In the simplest term, what is a hypthesis |
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Of the nutrients listed below, all except one are required by all organisms, which is it? |
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A news report onCNN that describes recently published research on a new treatment for gastric ulcers is an example of an |
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The type of bond that forms between two atoms when electrons re shared is a? |
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what is the correct order of phases during mitosis? |
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Prophase-metaphase-anaphase-telophase. |
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Mad cow disease is believed to be cause by infectous protiens called prions. A prion causes protiens in the brain to change their shape and prions can make compies of themselves. Which of the following statements is true? |
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Prions are not alive because they lack matabolism and genectic material |
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During the crossing over, all of the following happens except? |
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Definition
Some chromosomes end up with more DNA than their swap-partner |
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Cellular respiration that consumes oxygwn and glucose takes place within specialized cell organelles. These are known as? |
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ATP is composed of sugar, organic base adenine, and ? |
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In what eukaryotic cell are ribosomes made? |
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How do the concentrations of H+ and OH- compare in an acidic solution |
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The concentration of H+ is higher |
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Hydrolosis is the metabolic reaction during which? |
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Definition
Polymers split into monomers |
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All of the following are properties of water except |
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The most trustworthy source of scientific information derives from |
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peer reviewed research publications |
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Scientist are often hesitant to believe the result of a single experiment testing a particular treatment, even when the results are peer reviewed and stastically significant, this is because? |
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Definition
all of the above- the experimental and control group may not have been as alike as possible, and the experiment used a model organism and the results might not be the same for humans, and a single experiment may not have eliminated many alternate hypothesis and an unintentional bias may have affected the results of the experiment |
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The proper order for scientific process is |
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observation, hypothesis, prediction, test |
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Consider an experiment in which subjects are given a pill to test its effectiveness on reducing the duration of a cold, which of the following is the best way to treat the control group? |
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Definition
Give the control group a pill that doesn't affect colds. |
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Why does the average women have more body fat than the average man? |
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Definition
Women need more body fat in order to maintain a normal menstration and to become pregnant. |
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Carbohydrates are an excellent source of energy for the body, if a candy bar and a pear contain the same amount of calories from carbohydrates, which is the healthier food? |
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Definition
the pear because it contains; vitamins, minerals, and fiber. |
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What is a major difference between saturated and unsaturated fats? |
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Definition
Unsaturated fats contain carbin to carbon double bonds, but unsaturated fats do not. |
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Which of the following hypothesis is not testable? |
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Definition
The dinosaur T-Rex was a scavenger and not a predator |
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What type of work can ATP be used for inside the cells/ |
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all mecahnical work transport work chemical work |
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