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Biology - Water Transport in Plants Actual Full Exam Questions With Correct Answers Success Guaranteed.
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Advantages & Disadvantages to Living in Water - correct answer Advantages: 1. no need for massive support; supporting force = buoyancy 2. no shortage of H2O 3. gametes released into water 4. surrounded by water/nutrients/gases Disadvantages: 1. ...

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  • August 30, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • biology water transport in plants

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  • AC HPAT
  • AC HPAT

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Biology - Water Transport in Plants

Advantages & Disadvantages to Living in Water - correct answer Advantages:

1. no need for massive support; supporting force = buoyancy

2. no shortage of H2O

3. gametes released into water

4. surrounded by water/nutrients/gases



Disadvantages:

1. light drops quickly even in clear water; inhibits photosynthesis

2. big shortages of O2 & CO2



Advantages & Disadvantages to Living on Land - correct answer Advantages:

1. light not limited

2. O2 & CO2 more plentiful



Disadvantages:

1. gravity; early plants lacked lignin

2. less water; plants must maintain moisture

3. water/nutrients in diff. locations than gases

4. harder dispersal of gametes



Transport Infrastructure in Plants - correct answer - transpiration, drives xylem
sap up

- gas exchange via stomata

- photosynthesis produces sugars

- sink = source of transport in phloem

- roots take up water/minerals

, - upwards transport in xylem



Why can't mosses grow tall like trees? - correct answer 1. no vascular tissue to
grow stems/shoots

2. no lignin/structural support



How do trees grow tall? - correct answer 1. Primary Growth - via apical
meristems, increases plant's height

2. Secondary Growth - via vascular & cork cambium, increase diameter/width of plant



What is dendrochronology?

What makes up tree rings? - correct answer Dendrochronology - scientific
study of tree difference over time



Early Wood - spring growth, transports large volumes of H2O

Late Wood - summer growth, provides structure



Secondary Growth in Trees - correct answer Woody Plants:

- lateral meristems increases diameter of roots/stems



Stems:

- cork cambium adds secondary dermal tissue

- vascular cambium adds secondary xylem (aka. WOOD) and phloem



Body Types of Annual & Perennial Plants - correct answer Annual:

- herbaceous, flowers

- primary body from embryo



Perennial:

- shrubs, trees

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