Prokaryotic cells lack membrane-enclosed structures called ____________________. Furthermore, Eukaryotic (prokaryotic or eukaryotic) cells are much larger than Prokaryotic (prokaryotic or eukaryotic) cells.
63. Label the diagram: A. Fimbriae E. bacterial chromosome B. Capsule F. Ribosomes C. _Cell wall_ G. Flagella D. _Nucleotide_ H.Cytosol 64. Membranes are mostly composed of a double layer of Plasma. Embedded in the plasma membrane are diverse ______________________. 65. Two structures found in animal cells but not plant cells are Nuclear envelope. and Chromatin. Two structures found in plant cells, but not animal cells are Cell wall and chloroplast. 66. Flattened, interconnected sacs inside a chloroplast are called thylakoid. Stacks of these sacs are called grana, and the fluid outside the sacs is called the Stroma. 67. Define diffusion: It is the movement of molecules, so they spread out in space, from high concentration to low concentration. A B E C D F G H
68. Define osmosis: The process in which molecules go from a less concentrated area into a more concentrated area until equilibrium is achieved. 69. Complete this animal cell drawing by adding arrows and letters to label the following structures. You will need to draw a couple structures in the cell as well. A. cytosol B. nucleus C. nucleolus D. chromatin E. ribosome F. lysosome G. mitochondrion H. smooth ER I. rough ER J. peroxisome K. microvilli L. centrosome M. nuclear envelope N. plasma membrane O. Golgi apparatus P. microfilaments Q. intermediate filament R. microtubule S. nuclear pore
70. Complete this plant cell drawing by adding arrows and letters to label the following structures. You will need to draw a couple structures in the cell as well. A. cytosol B. nucleus C. nucleolus D. chromatin E. ribosome F. chloroplastG. mitochondrion H. smooth ER I. rough ER J. central vacuole K. plasma membrane L. cell wall M. plasmodesmata N. Golgi apparatus O. microfilaments P. microtubule Q. peroxisome 71. State the function of each cell structure: Nucleus: It stores the cells genetic information Chromatin: It’s made up of DNA and proteins. The DNA is the cell’s genetic information. Nucleolus: It is a non-membranous structure. It is involved in the production of ribosomes. Ribosome: Sites of protein synthesis Nuclear envelope: A double membrane with pores that controls the flow of substances in/out of the nucleus
Chloroplast: They site photosynthesis. Stacks of thylakoid sacs are called grana. The liquid around them is called the stroma Mitochondrion: It’s where most ATP is generated. Smooth ER: It makes membranes and lipids, detoxifies poisons, stores calcium, is site of carbohydrate metabolism Rough ER: It helps make secretory proteins and makes membranes Centriole: Its where microtubules originate Vesicle: A small fluid bladder in the Vacuole: It stores water, breaks down macromolecules and waste in plants cells.
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