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EOCT Review. Biology 2010. 30 Questions. Mrs. McClain. 1. What does the line graph below show?. The population increased at a constant rate The population increased rapidly and then leveled off The population increased at an exponential rate
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EOCT Review Biology 2010 30 Questions Mrs. McClain
1 What does the line graph below show? • The population increased at a constant rate • The population increased rapidly and then leveled off • The population increased at an exponential rate • Ecosystems are able to support any number of species
2 Mitosis occurs • Only in gamete cells • In somatic cells (body cells) • Only when an organism makes repairs to cells • As part of active transport
3 All the populations of organisms that inhabit the same area at the same time make up: • A community • An ecosystem • A biome • A biosphere
4 The substance labeled “catalyst” also is known by what other name? • Antibody • Lipid • Enzyme • Inorganic compound catalyst catalyst catalyst
5 Down syndrome is the result of an extra chromosome 21 in a gamete. What caused this to happen? • Nondisjunction • Telomeres • Environment • Chromosome inactivation
6 If a cell is placed in a highly concentrated glucose solution, water will leave the cell by • Osmosis • Exocytosis • Active Transport • Facilitated diffusion
7 The equation below represents a biological process. Where is this process completed? • Nucleus • Mitochondria • Cell membrane • Chloroplasts
8 A mimosa plant has the ability to fold its leaves when they are touched. This response is an example of: • geotropism • phototropism • thigmotropism • hydrotropism
9 What does the pyramid of biological magnification shown below illustrate? • Higher trophic carnivores eat very little food • Toxic substances increase as tropic levels increase in a food chain • Acid precipitation destroys underwater habitats • The process of eutrophication destroys underwater habitats
10 Why are the structures shown below considered to be homologous? • They belong to organisms that evolved from separate ancestors • They are the result of geographic isolation • They belong to organisms that probably evolved from a common ancestor • They are the result of sympatric speciation
11 A single strand of DNA with the base pairing sequence C G A T T G is compatible only with the sequence: • T A G C C T • G C T A A G • G C T A A C • C G A T T G
12 What happens to the total amount of energy as it flows through a food chain? • It remains the same • It increases • It decreases • It increases and then decreases
13 The cell theory states that: • Living things are made of cells • Cells come from other living cells of the same kind • Cells are the basic unit of all living things • All of the above
14 Which organelle is the site of protein synthesis? • Ribosome • Mitochondria • Nucleus • Cell membrane
15 Which of the following kingdoms does NOT contain any heterotrophs? • Protista • Animalia • Plantae • Fungi
16 Why are eugelnoids classified with plantlike protists? (picture gives you a clue!) • They form pseudopods • They contain chloroplasts and undergo photosynthesis • They have a nucleus surrounded by a membrane • They have a flagellum
17 In the nitrogen cycle, nitrogen is continuously recycled. Which type of organism break down nitrogen compounds in dead organisms and recycle them into the soil? • Bacteria • Heterotrophs • Green plants • Herbivores
18 The scientific name for the African elephant is Loxodonta africana. Which is the species name? • Loxodonta • africana • Homo sapien • African elephant
19 What is released at each level of pyramid of energy? • Animals • Decomposers • Heat • Plants
20 Which class of macromolecule store and communicate genetic information? • Carbohydrate • Lipid • Proteins • Nucleic acids
21 Which processes of organisms are involved in the carbon cycle? • Runoff & precipitation • Combustion & precipitation • Nitrogen-fixing & photosynthesis • Photosynthesis & respiration
22 Which role do bacteria play in the illustration shown below? • Cause disease • Recycle nutrients • Produce medicines • Produce foods
23 According to the energy pyramid below, which organisms are the primary consumers? • Eagle • Grass • Snakes • Mice
24 What do DNA and RNA have in common? • Both are double stranded • Both contain ribose molecules • Both contain phosphate groups • Both contain uracil
25 You suspect that a chemical that you are testing in the lab is strongly acidic. What might be its pH? • 2 • 7 • 11 • 14
26 A molecule of DNA is made up of __. • Amino acids & proteins • ATP & enzymes • Paired nucleotides • Receptor enzymes
27 What are the structures labeled A on the paramecium? • Contractile vacuoles • Oral grooves • Food Vacuoles • Cilia A
28 How is the illustration below interpreted by many scientists? • Mitochondria & chloroplasts were once prokaryotes • Prokaryotes ate mitochondria only • Prokaryotes cells evolved from eukaryotes • Prokaryotes have a nucleus
29 Which is a product of photosynthesis? • ATP • Glucose • Water • Carbon dioxide
30 Identify the process that is taking place in the illustration below. • Binary fission • Meiosis • Endospore formation • chemosynthesis