Biology - Water Transport in Plants Actual Full Exam Questions With Correct Answers Success Guaranteed.
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Course
AC HPAT
Institution
AC HPAT
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. ...
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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