2Explain one exception to the cell theory. Viruses – are not made up of cells
3Living things contain units of structure and function that arise from preexisting units. This statement best describes thecell theory.2. lock-and-key model of enzymes.3. concept of natural selection.4. heterotroph hypothesis.
4Which statement is not a part of the cell theory? (1) Cells are the basic unit of structure of living things.(2) Cells are the basic unit of function of living things.(3) Cell parts such as chloroplasts are self-replicating.(4) Cells come from preexisting cells.
5Which statement explains why viruses are exceptions to the cell theory? They contain genetic material.They are not made up of cells.They reproduce by mitosis.They are surrounded by a protein coat.
6Give the cell organelle that performs each function. Transport materials throughout the cellProtein productionDigests foodRegulates what enters and leaves the cell5. Produces energyendoplasmic reticulumribosomeslysosomescell membranemitochondria
76. Controls all cell activities 7. Holds cell organelles 8. Site of photosynthesis9. Used in cell division10. Gives plant cell shape and support11. Stores materialsnucleuscytoplasmchloroplastscentriolescell wallvacuoles
8Identify all the organelles labeled and give the function of each. Nucleus: controls all cell activitiesVacuole: stores materialsRibosome: produces proteinsMitochondria: produces energyCell membrane: controls what enters and leaves the cell
9What type of cell is represented? What is structure B? What is the function of this structure?What is the function of structure C?Explain how structure A maintains homeostasis within the cell?Animal cellNucleus – controls all cell activitiesStores materialsIt controls what enters and exits the cell.
10Identify the structures labeled and the function of each. 1- nucleus: controls all cell activities2 – nucleolus: produces ribosomes3 – cell membrane: controls what enters and exits the cell4 – cytoplasm: holds cell organelles5 – cell wall: keeps plant cells rigid and supports plant cell6 – vacuole: stores materials7 - chloroplast: site of photosynthesis
11One difference between plant and animal cells is that animal cells do not have a nucleus chloroplastsa cell membranecentrioles
12Which structure permits the entry and exit of materials in an animal cell? (1.) lysosome(2.) chromosome(3.) cell wall(4.) cell membrane
13The structure most closely associated with the destruction of worn out cell organelles is the (1.) lysosome(2.) centrosome(3.) vacuole(4.) chromosome
14Which is found in the nucleus? (1.) ribosome(2.) vacuole(3.) lysosome (4.) chromosome
15The rigidity (support) of a plant cell is due primarily to the presence of the chloroplasts(2) centrosomes(3) cell membrane(4) cell wall
16Whitney observes a cell under the microscope Whitney observes a cell under the microscope. She identifies it as a green plant cell and not a cheek cell because of a(1.) nucleus(2.) cell membrane(3.) chloroplast(4.) mitochondrion
17While viewing a slide of rapidly moving sperm cells, a student concludes that these cells require a large amount of energy to maintain their activity. The organelles that most directly provide this energy are known as (1) vacuoles (2) chloroplasts(3) ribosomes (4) mitochondria
18Which structure is found ONLY in animal cells? (1.) cell wall(2.) vacuoles(3.) centrioles(4.) chloroplasts
19The organelle most closely associated with the manufacture of proteins within the cell is the (1.) ribosome(2.) nucleolus(3.) cell wall(4.) cell membrane
20What is this structure called? 2.In what kind of cell is this structure found?3. What process occurs in this structure?chloroplastPlant cellPhotosynthesis
21What is this structure called? What is the function of this organelle? In what kind of cells would you find this organelle?mitochondriaProduces energy (ATP)Both animal and plant celld
22Which sequence of terms is in the correct order from simplest to most complex? (1) cells, tissues, organs, organ systems (2) tissues, organisms, cells, organ systems (3) cells, tissues, organ systems, organs (4) organs, organisms, organ systems, cells
23Explain two differences between prokaryotic and eukaryotic cells. Prokaryotic cells do not contain a nucleus while eukaryotic cells do.Prokaryotic cells do not contain cell organelles while eukaryotic cells do.DNA in prokaryotic cells is found in the cytoplasm while the DNA in eukaryotic cells is found in the nucleus.Prokaryotic cells are smaller than eukaryotic cells do.
24Give an example of a prokaryotic cell. 2. Give an example of a eukaryotic cell.bacteriaParamecia, ameba, algae, animal and plant cells
25The breakdown of organic compounds to produce ATP is known as cellular respirationtranspiration active transport photosynthesis
26An important molecule generated by both lactic acid fermentation and alcoholic fermentation is ATP (2) CO2 (3) CO2 (4) H2O
27What is the name of the process represented above? C6H12O O2 6CO H2O + XWhat is the name of the process represented above?2. Where does this process occur?3. What molecule does X represent?Aerobic respirationmitochondriaEnergy or ATP
28Aerobic respiration and fermentation are similar in that both processes (1.) require oxygen(2.) utilize light energy(3.) release energy(4.) produce carbohydrates
29When muscles are exercised extensively in the absence of sufficient oxygen, lactic acid is produced a large amount of ATP is formedNADH molecules split oxidative respiration occurs
30Yeast produce alcohol and CO2 in the process of lactic acid fermentation alcoholic fermentationaerobic respiration glycolysis
31In the presence of oxygen, _____ molecules of ATP can be formed. 2 (2) 19 (3) 36 (4) 63
32An end product of alcoholic fermentation is glucose (2) oxygen (3) carbon dioxide (4) lactic acid
33The life function of transport in an organism directly involves those activities used to: absorb and distribute materialsobtain and break down materialsrelease energy from foodproduce cellular waste products
34What type of transport does this picture represent? Explain your answer.Active transportSubstances are moving from a LOW to HIGH concentration.
35The diagram above shows the same type of molecule in area A and area B The diagram above shows the same type of molecule in area A and area B. With the passage of time, some molecules move from area A to area B. This movement is the result of the process of __________.passive transport
36The movement of materials from higher to lower concentration is called (1.) diffusion (2.) active transport (3.) pinocytosis(4.) phagocytosis
37The movement of materials from lower to higher concentration requiring energy is called (2.) diffusion (3.) active transport(4.) cell division
38Diffusion is a term for the movement of molecules from (1) an area of low concentration to a high concentration (2) an adjacent area to a gradient area (3) an area of high concentration to a low concentration (4) a nucleus to the mitochondria