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Making Connections Pretest 1. An individual eats a hamburger. Which two systems must interact to transfer the nutrients in the hamburger to human muscle tissue? (1) respiratory and excretory (2) digestive and immune (3) digestive and circulatory (4) circulatory and respiratory 2. An ameba, a one-celled organism, can move, ingest, and transport materials within the cell, because it has (1) organs (2) organelles (3) tissues (4) systems 3. Structures in an animal cell are represented in the diagram below 6. The energy released when sugar molecules are broken down is stored in (1) minerals (3) DNA (2) ATP (4) wastes 7. Which molecule can diffuse (move through) from the digestive tract into the human bloodstream without first being digested? (1) protein (3) fat (2) starch (4) glucose 8. Which body system is correctly paired with its function? (1) excretory—produces antibodies to fight disease-causing organisms (2) digestive—produces hormones for storage and insulation (3) circulatory—transports materials for energy release in body cells (4) respiratory—collects waste material for digestion 9. Animals eat and digest food to obtain the energy Which row in the chart correctly identifies the functions of structures A, B, and C? Row (1) Structure A waste removal (2) Information storage (3) Protein synthesis Cell communication (4) Structure B Extract energy from nutrients Transport of materials Storage of wastes Transport of materials Structure C Protein synthesis Storage of liquids Reproduction Waste materials 4. During the process of cellular respiration, energy is released from (1) carbon dioxide (3) water molecules (2) oxygen atoms (4) chemical bonds 5. In order for the muscle fatigue to end, the muscle cells must be provided with (1) oxygen (3) carbon dioxide (2) nitrogen (4) amino acids available for life activities. Discuss energy use in animals. In your discussion, be sure to: • identify the type of protein molecules used to digest food • identify the organelle where energy from nutrients is released • state one inference that can be made concerning a cell that has many of these organelles 10. Autotrophs might survive when heterotrophs cannot, because autotrophs are able to (1) reproduce asexually (2) become dormant (3) exist without respiration (4) make their own food 11. The inability of an organism to produce certain proteins can occur when an organism is lacking an enzyme needed to combine (1) oxygen molecules (3) amino acids (2) simple sugars (4) biological catalysts 12. The diagram below represents a specialized cell located in the root of a plant. The arrows in the diagram indicate the movement of molecules of oxygen and water into the cell. 17. The diagram below represents two processes that occur in organisms. A characteristic represented by X is common to both of these processes. A characteristic that the two processes have in common is that each process (1) uses ATP (3) uses oxygen (2) requires enzymes (4) moves molecules Which row in the chart below correctly identifies the process responsible for the movement of each type of molecule represented in the diagram? 18. The molecules represented in the diagram below can interact to cause a biochemical process to occur. Molecule A and molecule B most likely represent (1) a nerve signal and a gene (2) a receptor and a hormone (3) a chromosome and an antigen (4) a starch and an amino acid 13. Materials are transported within a single-celled organism by the (1) nucleus (3) mitochondrion (2) cytoplasm (4) ribosome 14. Which observation could lead to the conclusion that an object is nonliving? (1) It passes on hereditary information only through asexual reproduction. (2) It carries out synthesis. (3) It cannot perform metabolic processes. (4) It is composed of a cell, but does not have tissues. 19. The cytoplasm in a single-celled organism and the circulatory system in a human both (1) break down molecules into smaller components (2) release energy to be used by the organism (3) transport substances throughout the organism (4) distribute blood to all of the parts of the organism Base your answers to questions 20 and 21 on the information below and on your knowledge of biology. Three students took their pulse rates in beats per minute (bpm) while sitting in class. The results are shown in the data table below. 15. Which sequence best represents increasing complexity? (1) tissues → cells → organelles → organs (2) cells → organelles → organs → organism (3) organelles → cells → tissues → organs (4) organism → cells → tissues → organelles 16. Which process uses energy to combine inorganic molecules to synthesize organic molecules? (1) respiration (3) photosynthesis (2) digestion (4) decomposition 20. State one reason why the pulse rates were not the same for all three students, even though they were all resting at the time. 21. What is the average pulse rate, in bpm, for this group of students? _____________bpm