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jorge10th BIOLOGY
10th Chapter 7.2 EUKARYOTIC CELL STRUCTURE
| Question | Answer |
|---|---|
| A FIRM STRUCTURE THAT PROTECTS GIVES SHAPE TO A CELL | CELL WALL |
| IN PLANT CELLS, COMPOSED MAINLY OF FIBROUS MATERIAL CALLED CELLULOSE | CELL WALL |
| QUITE FLEXIBLE AND ALLOWS THE CELL TO VARY ITS SHAPE | PLASMA MEMBRANE |
| COMPOSED OF TWO LAYERS OF LIQUID AND PROTEIN | PLASMA MEMBRANE |
| NOT FOUND IN ANIMAL CELLS | CELL WALL |
| CONTROLS THE MOVEMENT OF MATERIALS THAT ENTER AND EXIT THE CELLS | PLASMA MEMBRANE |
| FOUND IN PLANTS, BACTERIA, AND PROTISTS | BOTH: Plasma Membrane AND Cell Wall |
| SERVES AS AN EXTERNAL BOUNDARY BETWEEN THE CELLS AND ITS ENVIRONMENT | BOTH: Plasma Membrane AND Cell Wall |
| ALLOWS OXYGEN AND NUTRIENTS TO ENTER AND WASTE PRODUCTS TO LEAVE | PLASMA MEMBRANE |
| HELPS MAINTAIN A CHEMICAL BALANCE WITHIN THE CELL | PLASMA MEMBRANE |
| IN FUNGI, COMPOSED OF CHITIN | CELL WALL |
| WHAT ORGANELLE MANAGES CELL-FUNCTIONS IN A EUKARYOTIC CELL? | NUCLEUS |
| WHAT SURROUNDS THE NUCLEUS? Describe the structure and function of this component. | NUCLEAR ENVELOPE-- WHICH IS A DOUBLE MEMBRANE FOUR LAYERS THICK. IT ALLOW MATERIALS TO PASS BACK AND FORTH BETWEEN THE NUCLEUS AND THE REST OF THE CELL. |
| WHAT SUBSTANCE CAN BE FOUND INSIDE THE NUCLEUS? Describe its function | DNA, DNA CARRIES THE MASTER INSTRUCTIONS FOR BUILDING PROTEINS. |
| A MEMBRANE-BOUND, FLUID- FILLED SAC | vacule |
| CLOSELY STACKED, FLATTENED MEMBRANE SACS. | golgi apparatus |
| THE SITES OF PROTEIN ASSEMBLY | ribsomes |
| A FOLDED MEMBRANE THAT FORMS A NETWORK OF INTERCONNECTED COMPARTMENTS IN THE CYTOPLASM | endoplasmic reticulum |
| THE CLEAR FLUID INSIDE THE CELL | cyptoplasm |
| CONTAINS CHOROPHYLL, A GREEN PIGMENT THAT TRAPS ENERGY FROM SUNLIGHT AND GIVES PLANTS THEIR GREEN COLOR. | choloplast |
| DIGESTS EXCESS OR WORN-OUT CELL PARTS, FOOD PARTICLES, AND INVADING VIRUSES OR BACTERIA. | lysosme |
| SMALL BUMPS LOCATED ON THE ENDOPLASMIC RETICULUM | ribsomes |
| PROVIDES TEMPORARY STORAGE OF FOOD, ENZYMES, AND WASTE PRODUCTS. | vacuole |
| PRODUCE AN USABLE FORM OF ENERGY FOR THE CELL | mitochondria |
| MODIFIES PROTEINS CHEMICALLY, THEN REPACKAGES THEM | golgi apparatus |
| CONTAINS INNER MEMBRANES ARRANGED IN STACKS OF MEMBRANOUS SACS CALLED GRANA | choloplast |
| PLANT ORGANELLES THAT STORE STARCHES OR LIPIDS OR THAT CONTAIN PIGMENTS. | plastids |
| SCIENTISTS DISCOVERED 200 YEARS AGO THAT CELLS HAVE SUPPORT STRUCTURE CALLED THE CYTOSKELETON. | 20 years ago |
| THE EXOSKELETON IS COMPOSED OF TINY RODS AND FILAMENTS THAT FORM A FRAME WORK FOR THE CELL. | cytoskeleton |
| MICROTUBULES OF THE CYTOSKELETON ARE THIN, HOLLOW CYLINDERS MAKE OF PROTEINS. | true |
| FLAGELLA ARE SHORT, NUMEROUS HAIRLIKE PROJECTIONS FROM THE PLASMA MEMBRANE. | cilia |
| FLAGELLA ARE LONGER AND MORE NUMEROUS THEN CILIA. | less |
| IN MULTICELLULAR ORGANISMS CILIA AND FLAGELLA ARE THE MAJOR MEANS OF LOCOMOTION. | unicellular |
| SPERM CELLS MOVE BY MEANS OF FLAGELLA | true |
Created by:
asimien907
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