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nonspecific_and _specific_body_defenses
nonspecific_and _specific_body_defenses

How things get in and out of a Cell HOMEOSTASIS
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... Decide what will represent each of the parts of the cell as part of your analogy. Draw and label the parts of your poster. Each person is responsible for their own cell parts. Use the colored index cards to write your explanation of what part of the cell is represented by what part of the analogy an ...
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... 5. If you connected container B to container D, which direction would the solute move? 6. Which two solutions are ISOTONIC to each other? 7. Which solution(s) is D hypotonic to? 8. Which solution(s) is D hypertonic to? 9. Which solution is hypertonic to all other solutions? 10. Which solution is hyp ...
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L3.b Spiral Review

... b. cytoplasm c. membrane d. nucleus 2. Which of these cell parts is CORRECTLY paired with its function? a. cell membrane - traps light energy b. nucleus - stores water, food, and wastes c. chloroplast - controls all the activities in the cell d. cytoplasm - contains chemicals that the cell needs 3. ...
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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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