As you study the section, consider the role of energy in each of the cellular transport methods discussed. Chapter 7. Cellular Structure and Function Visit biologygmh.com to: study the entire chapter online explore the Interactive Time Line, Concepts in Motion, the Interactive Ta ble, Microscopy Links, Virtual Labs.

1. What is the function of:

a. endoplasmic reticulum - transport within cell
b. mitochondria - produces energy, ATP (powerhouse)
c. ribosomes - makes proteins
d. nucleolus - makes ribosomes
e. microfilaments & microtubules - cytoskeleton, support
f. lysosomes - contains enzymes to break down materials
g. golgi apparatus - packaging and export of proteins in vesicles
h. centrioles - moves chromosomes during cell division

2. Label the cell below.

2. The basic unit of structure and function in the human body is the ____ cell _______

3. Describe each of these processes: phagocytosis - consuming large food particles , pinocytosis - consuming large liquid particles, exocytosis - pushing waste or vesicles out of the cell

4. What is the difference between active transport and passive transport? Givea specific example of each type.

active transport - requires energy ATP; sodium-potassium pump, endocytosis, exocytosis
passive transport - does not require energy; diffusion and osmosis

5. Describe the process of making and exporting a protein from a cell.

proteins are made by the ribosomes and then transported through the endoplasmic reticulum where they are packaged into vesicles by the golgi apparatus. Vesicles are exported out of the cell (exocytosis)
6. Describe the cell membrane and its properties. What is its function?

the cell membrane is selectively permeable, it consists of phospholipids and proteins arranged in a bilayer, it regulates what comes into and out of the cell

7. What is diffusion and facilitated diffusion? What is osmosis?

diffusion is the movement of molecules from areas of high concentration to low, molecules tend to spread out
faciliatated diffusion uses proteins in the membrane to help move molecules across
osmosis is the diffusion of water

8. List and describe the stages in the life cycle of a cell.

interphase - resting phase, cell makes a copy of DNA
prophase -chromatin condenses in chromosomes, spindle forms
metaphase - chromosomes line up along the equator
anaphase - chromatids separate
telophase - cell begins to pinch inward, nuclear membrane reforms, spindle disappears; cytokinesis begins

9. What is the centriole and the spindle and what is their role in cellularreproduction? structures that move chromosomes so that each new daughter cell gets the correct number

10. What is the difference between chromosomes, chromatin, and chromatids?

chromosomes look like X's and appear during prophase, chromatin is DNA, a chromatid is a single copy (half of the X) that is visible during prophase and eventually separates during anaphase

11. What is DNA and what do the letters stand for? deoxyribonucleic acid

12. Explain the process of cellular respiration and why it is important for the cell. Cellular respiration uses oxygen and glucose to create ATP, ATP is necessary for many of the cell function, like the active transport. Respiration occurs in the mitochondria.

13. What is the difference between hypertonic, hypotonic, & isotonic? Whatwill happen to cells placed in each type of solution?

isotonic - solution has an equal concentration as the cell, no net movement
hypertonic - solution has a greater number of solutes, this causes water to move out of the cell
hypotonic - solution has fewer solutes, this causes water to move into the cell

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3.- Chapter 8 Cellular Energy Section 1 How.Metabolism All of the chemical reactions in a cell 8.1 How Organisms Obtain Energy Cellular Energy Photosynthesis —light energy from the Sun is converted to chemical energy for use by the cell Cellular respiration —organic molecules are broken down to release energy for use by the cell Chapter 8CH08 115-128 - freshbiology.weebly.com8.1 Energy and Life Lesson Objectives Describe the role of ATP in cellular activities. Explain where plants get the energy they need to produce food. Lesson Summary Chemical Energy and ATP Energy is the ability to do work. Organisms need energy to stay alive.Chapter 8 Photosynthesis, TE - scarsdaleschools.k12.ny.usChapter 8 Photosynthesis Section 8-1 Energy and Life(pages 201-203) This section explains where plants get the energy they need to produce food. It also describes the role of the chemical compound ATP in cellular activities. Autotrophs and Heterotrophs(page 201) 1. Where does the energy of food originally come from?Energy in most food comes.8 Photosynthesis Answer Key - localexam.comChapter 8 Photosynthesis Photosynthesis Review Round 5 Number your paper 1-8 Chapter 8 photosynthesis answer key.

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Autotroph/ Producer organism that makes its own food C. Cellular Respiration process in which cells break down glucose and make ATP for energyChapter 8ATP FUNCTION ATP's function is to release energy when the bond between the 2nd and 3rd phosphate groups are broken Forms adenosine diphosphate (ADP) and a free phosphate group Energy is released SECTION 8.2 - PHOTOSYNTHESIS MAIN IDEA - Light energy is trapped and converted into chemical energy during photosynthesis.8 Photosynthesis Worksheets - Printable WorksheetsChapter 8 Photosynthesis. Showing top 8 worksheets in the category - Chapter 8 Photosynthesis. Some of the worksheets displayed are Answers chapters 8 9 review photosynthesis cellular, Answers for support work chapter 8, Chapter 8 photosynthesis study guide, Chapter 8 photosynthesis vocabulary review matching answer key, Chapter 8 photosynthesis se, Chapter 8 photosynthesis energy and life.Ch. 8 Answer Key - Council Rock School DistrictSection Review 8-1 1.Autotrophs get energy from the sun in the form of. Section Review 8-2 1.c 2. 5.c 6.6CO2 6H2O → C6H12O6.

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Write three questions that come to mind from reading the headings and the illustration captions. Accept all reasonable responses.

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