Answer:
The correct answer is option e. "None of the above".
Explanation:
The Hershey-Chase experiment helped to prove that DNA was the genetic material, by specifically labeling the DNA material of a bacteriophage with phosphorus-32. In this experiment the lambda phage is labeled with heavy and light Cl. CI-36, the one that is heavy and radioactive, corresponds to Chlorine-36. Chlorine is not an element found in DNA such as phosphorus, therefore lambda DNA will not be labeled and no radioactivity will be detected.
2. 5 pieces of Food from your Thanksgiving Day meal
(Ideas: apple, corn on the cob, slice of turkey, carrot, whole potato, spoonful whip cream)
3. Fill Kitchen Sink, bathtub, or laundry tub with water (about half way up)
4. Write in data chart if you think each one will float.
5. Gently place each food (separately) in to the water
6. Record if did float or did not float.
7. Write Conclusion
a. True
b. False T?
The endomembrane system consists of the nuclear envelope, ER, Golgi apparatus, lysosomes, vesicles, and plasma membrane. They collaborate to transport, package, and alter proteins and lipids. Components like mitochondria or chloroplasts are not part of the endomembrane system.
The endomembrane system in eukaryotic cells is composed of the nuclear envelope, the endoplasmic reticulum (ER), Golgi apparatus, lysosomes, vesicles, and the plasma membrane. These cellular components work together to perform several functions. Notably, they modify, package, tag, and transport proteins and lipids that form the membranes.
Starting with the nuclear envelope, it protects the contents of the nucleus by separating it from the cytoplasm. The endoplasmic reticulum synthesizes proteins and lipids. Golgi apparatus serves to further modify, sort, and package these proteins and lipids for transportation. lysosomes are involved in breaking down waste materials and cellular debris in the cell. Vesicles transport molecules around the cell. Finally, the plasma membrane controls the movement of substances in and out of the cell.
The endomembrane system does not include organelles like mitochondria or chloroplasts, as their membranes are not part of this system.
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b. cellular respiration
c. diffusion
d. gas exchange
The movement of water in plants from the roots to the leaves is driven by transpiration, which creates a tension pulling water upwards. This process, as well as the water's cohesion and adhesion, and differences in water potential, is explained by the cohesion-tension theory.
The movement of water in plants, specifically from the roots to the leaves, is primarily driven by a process known as transpiration. Transpiration is the evaporation of water from the plant's leaf surfaces. This occurs at the leaf-atmosphere interface, creating a negative pressure or tension which effectively pulls up water from the roots, through the xylem vessels.
Adherence of water to the xylem cell walls, known as adhesion, and the attraction between water molecules themselves, known as cohesion, also play significant roles in this process. These factors permit the water to be held in the stem and leaf when transpiration stops at night as the stomata shut. Overall, this process of water movement is described by the cohesion-tension theory of sap ascent.
Water potential, at the same time, affects this process as it decreases from the roots to the top of the plant, meaning, there's a high water potential in the soil and roots and a low potential in the leaves, driving water upwards through the plant.
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