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Biology Progress Monitoring Assessment – Cells and Cell Specialization 1. The cell theory explains many observations made by scientists beginning in the 1660’s. Before the cell theory was developed, people thought that dead or nonliving material would spontaneously produce living organisms. Which of the following most supported the development of the cell theory? A. B. C. D. 2. Schleiden and Schwann were biologists whose observations led to the first statements of the cell theory. They proposed that all living organisms are made up of cells, and, that cells are the basic unit of life. Several years later, other biologists discovered that cells divide. Which statement of the cell theory was developed from this discovery? A. B. C. D. 3. Only plant and animal cells divide. Cells only divide in young organisms. New cells are produced from existing cells. New cells are produced from non living matter. There are two major types of cells, prokaryotes and eukaryotes. These types of cells range in size, shape, and function. What is the major difference between prokaryotes and eukaryotes? A. B. C. D. 4. Darwin’s observations of variations in birds Pasteur’s discovery that bacteria caused disease Chamberland’s invention of a filter to remove bacteria from a solution Redi’s experiment with decaying meat in covered and uncovered jars Prokaryotes contain DNA but eukaryotes do not. Eukaryotes contain DNA but prokaryotes do not. Prokaryotes contain a nucleus but eukaryotes do not. Eukaryotes contain a nucleus but prokaryotes do not. Plant and animal cells are alike in having a nucleus, cytoplasm, and a cell membrane. However, some structures in plant cells differ from those in animal cells. Which of the following are found only in plant cells? A. B. C. D. Cell walls and ribosomes Chloroplasts and cell walls Cell walls and mitochondria Chloroplasts and mitochondria Duval County Public Schools 2010-11 Biology PMA Cells and Cell Specialization 1 5. The process of osmosis allows water to diffuse through a selectively permeable membrane. Osmosis occurs when there is a different concentration of solute molecules on each side of the membrane. The drawing below shows a beaker containing a 30% salt solution. A plastic bag containing a 10% salt solution is hanging down into the solution in the beaker. 10% salt solution 30% salt solution What will happen to the bag after about twenty minutes? 6. A. Water will move from the 30% salt solution into the bag. B. Water will move from the bag into the 30% salt solution. C. Salt will move from the bag into the 30% salt solution. D. Salt will move from the 30% salt solution into the bag. Look at the diagram of a cross-section of a cell membrane below. protein lipids ion The protein moves small molecules and ions across the cell membrane. For example, ions are moved from the side where there are few ions to the side where there are more ions. Which best describes this process of moving ions against a concentration difference? A. B. C. D. active transport requiring energy active transport not requiring energy facilitated diffusion requiring energy facilitated diffusion not requiring energy Duval County Public Schools 2010-11 Biology PMA Cells and Cell Specialization 2 7. Sally wanted to eat her left-over salad for dinner. However, she noticed that the lettuce was wilted. Sally learned in her biology class that this was due to the salt and other dissolved solids in the salad dressing. Why does leaving salad dressing on lettuce cause it to wilt? A. B. C. D. 8. Mr. Jones has run out of dialysis tubing but would like his students to model the permeability of cells. He asks students to design an experiment to test which brand of plastic sandwich bags will allow molecules to pass through. Mr. Jones gives the students a list of available supplies which includes: starch, iodine, water, glassware, and 3 different brands of sandwich bags. What is the independent variable in the experiment? A. B. C. D. 9. Water Iodine Starch Sandwich bags After puberty in females, several follicles in the ovary begin to grow each month. Usually only one follicle matures and releases an egg cell. What is the correct path of the egg cell after it leaves the ovary? A. B. C. D. 10. There is a loss of water from the lettuce. There is an increase of water into the lettuce. There is no movement of water in the lettuce. There is balanced intake and loss of water in the lettuce. Vas deferens to uterus Fallopian tube to uterus Uterus to Fallopian tube Fallopian tube to vas deferens During human development, the fertilized egg divides into many cells. These cells become specialized and develop into an embryo. Cells in the embryo continue to divide, becoming a fetus. Many changes occur in the fetus during pregnancy. What are the main developments during the third trimester of pregnancy? A. B. C. D. Hands, feet, eyes and ears are developing. Most of the organs are forming and the heat begins to beat. The fetus doubles in mass and the lungs are fully developed. The umbilical cord forms and eyes and eye lids are developing. Duval County Public Schools 2010-11 Biology PMA Cells and Cell Specialization 3