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- 1. Identify the labeled cells, tissues and other associated structures. В A P Q A (region) CI C2 S D T E F V W H X Y J Z K A1 C1 (basic and subtype) L A2 M. N АЗ A4 C2 (term for xylem arms) 2. Discuss which pathway permits the passage of most solutes and water inside the roots? Which pathway allows the entry of most of the water and some of the solutes inside the root tissue? Explain how the Casparian strip creates a barrier for substance moving through this pathway and how it is circumvented. D (tissue composition) E (single layer of cells) L (red cellular coating) H (conducting tissue) G (give rise to lateral roots) O (function) K (conducting cell) J (уре of maturation) M I (conducting cell) (specific cell) F (conducting tissue) N (name of plant specimen )20 (8) a. Which one of the following phenomena is responsible for transportation of food through phloem tissue : a. Mass flow b. Diffusion C. Osmosis b. The reason for my answer is: a. Movement of particles for higher concentration to lower concentration b. Movement of particles of a material to one direction due to gravity C. Movement of particles of a material to direction due to pressure gradient d. Movement of materials as a bulk due to pressure gradientWhich of the following describes what happens in the ROOT HAIR cells? Mineral lons Water pass into the passes into Plant loses plant the plant water by through through transpiration active osmosis transport A Yes Yes No В Yes Yes Yes C Yes No Yes D No Yes Yes
- i. Based on Figure 2, identify the structure that regulates the movement of water and minerals towards the xylem in the root. ii. Name structure of the cell membrane allows it to act as a selective barrier? iii. Predict what will happen to the transportation of water and minerals through the plasma membrane if the root was poisoned and no cellular respiration occurred.B) If you have a mesophyll cell in a leaf (a living, parenchyma cell in a leaf) with a slight positive turgor pressure (Yp = 0.01 MPa) and solutes (Ys = -3.0 MPa), and it is next to a xylem vessel element with very few solutes in the xylem sap (Ys = -0.01 MPa) but high physical tension (Yp = - 2.0 MPa), which way will water flow? a) from the mesophyll cell into the vessel element b) from the vessel element into the mesophyll cell c) neither direction. They are at equilibrium. Activa GoroSeLeno Tosk 5 Stimulus & response 19 11 12 13 14 15 16 17 Down Across 6. The pressure exerted on a plant cell wall by water passing into the cell by Osmosis 11. To maintain a state of balance 13. to eject the contents of the stamach 14. of or situated on the inside 15. a state of equilibrium 16. growth response to water by plants 17. biological response to extreme stress from light 1. a growth respanse of a plant toward t away from a stimulus 2. Organism's respunse, characterizad by a rise in temuerature & disturbance of various body functions 3. a change in a organism's surroundings that causes the organism to react 4. growth of a plant shoot toward or away 5. a directional growth of a plant in response to touch 7. of ar situeted on the outside 8. change in direction of plant growth in response to gravity 9. A plant or tree grown from a seed 10. to lose or cause to lose freshness & become limp 12. an action or change in behavior thal accurs in reaction to a stimulus
- 9. Describe the process of water transport in plants from the roots to the leaves. What roles do xylem, osmosis, and transpiration play in this process? Discuss how environmental factors can affect water transport in plants. 1. 2. 3. 0088 Doo ooooooo Transpiration draws water from the leaf. Cohesion and adhesion draw water up the xylem. Negative water potential draws water into the root. Mesophyll cells Xylem Stoma Xylem Root hairs Soil particle Water molecule Xylem Low Water potential gradient High Atmosphere: --100 MPa Leaf at tip of tree: --1.5 MPa Stem: -0.6 MPa Root cells: -0.2 MPaA. Plant Transportation1. Transport of Substances from the epidermis towards the vascular tissuesFill-in the blanks with the following choices: casperian strip, symplast pathway, xylem, plasmodesmata, apoplast pathway Water and solutes either in solution or suspension move through cells through the apoplast and symplast pathway. __________ involves movement of substances through the intercellular spaces (matrix) between cells. __________on the other hand, allows movement of substances by passing through the cell membrane entering the cytosol and transfers to another cell through the opening in the cell walls called __________. However, the presence of the __________in the endodermis before the stele where vascular tissues are found, impedes the apoplastic route, thus substances move via the symplastic route to the__________. 2. Transport of substances through the XylemArrange in sequence the statements. Use 1-5.______ Absorption of water takes place due to capillary action to…Which of the following would require active transport? Select one: O a. Stomata opening b. Potassium moving through an ion channel O c. Water moving through aquaporins O d. Water diffusing into xylem from the root e. The tension in the leaf caused by evaporating water
- What is the wall resistance of plant cells? Does this resistance facilitate or make difficult the entrance of water into the cell?Give an example of an environmental condition where stomates are unable to maintaincooling of the leaf and heat stress occurs. Explain the consequences of heat stress onphotosynthesis, membrane integrity and proteins.Source Sieve tube Punca Tiub tapis Substance V Bahan V Molecule W Molekul W Osmosis Sink Sinki Substance V Bahan V Molecule W Molekul W Figure 2 Rajah 2 Give an example of a plant organ that functions as the source and the sink in the transport above. Berikan contoh organ tumbuhan yang berfungsi sebagai punca dan sinki dalam pengangkutan di atas. Source Punca: Sink Sinki: ...