FINAL EXAM BIO 106 – JORGENSEN
EXAM QUESTIONS & ACCURATE
COMPLETE SOLUTIONS
What is the gas exchange in a plant's roots? - Correct Answer ✔✔ O2 enters the root,
CO2 exits for respiration
In a leaf, what cell type is mainly necessary for CO2 + water vapor exchange with the
atmosphere? - Correct Answer ✔✔ Guard cell
What is xylem needed in the plant for? - Correct Answer ✔✔ to transport water and
minerals from roots to shoots
What do vascular plants transport throughout the plant? - Correct Answer ✔✔ water
and nutrients
What are the main functions of roots? - Correct Answer ✔✔ support, absorb minerals
and water, and store organic nutrients
What are the main functions of leaves? - Correct Answer ✔✔ absorption of light and
photosynthesis and exchange gas with atmosphere
What are the main functions of stems? - Correct Answer ✔✔ reproduction support and
positioning of leaves for photosynthesis
What is the difference between a root and a shoot system? - Correct Answer ✔✔ root
systems are below the ground and consists of roots and shoot systems is above ground
and consists of stems and leaves
What are the 2 main body parts of a vascular plant? - Correct Answer ✔✔ shoot system
and root system
What are tissues composed of? - Correct Answer ✔✔ multiple cells working together for
a specific function
What are organs composed of? - Correct Answer ✔✔ multiple tissues working together
for a specific function
What are the three basic plant tissues in order from outside to inside? - Correct Answer
✔✔ dermal, ground, vascular
, What is the main function of stolons and rhizones? - Correct Answer ✔✔ to facilitate
asexual reproduction
How do plants increase their capacity for water absorbance? - Correct Answer ✔✔ by
developing root hairs from epidermal cells
What are the 3 basic plan organs? - Correct Answer ✔✔ root, leaf, stem
What are the three most abundant elements in plant tissue? - Correct Answer ✔✔
hydrogen, carbon, oxygen
what does phloem sap consist of and how is it transported? - Correct Answer ✔✔
sucrose; source to sink
What way does water flow in respect to water potential? - Correct Answer ✔✔ from high
water potential to low
What plant type is normally dead at maturity? - Correct Answer ✔✔ vessel element
As water is transported up the xylem, does the water potential become more or less
negative? why? - Correct Answer ✔✔ more negative because water moves from high to
low water potential
How do stomata open? - Correct Answer ✔✔ K+ enters the guard cells, then water
enters, making cells turgid
How is sugar loaded to the phloem? - Correct Answer ✔✔ sucrose is cotransported with
H+
What meristem is responsible for primary growth? - Correct Answer ✔✔ Apical
meristem
True or false: diffusion requires an energy input - Correct Answer ✔✔ false
What are the 4 most common elements found in plants? - Correct Answer ✔✔ carbon,
hydrogen, oxygen, nitrogen
What are loams and why is it important for soil to be loamy? - Correct Answer ✔✔ soils
that have roughly equal amounts of sand, slits, and clay. it provides surface area and
water retention
Why are cations difficult to get access to in soil? - Correct Answer ✔✔ they are bound
strongly to soil particles
How do mycorrhizal fungi contribute to the mutualism they have with plants? - Correct
Answer ✔✔ by increasing the capacity for water uptake
EXAM QUESTIONS & ACCURATE
COMPLETE SOLUTIONS
What is the gas exchange in a plant's roots? - Correct Answer ✔✔ O2 enters the root,
CO2 exits for respiration
In a leaf, what cell type is mainly necessary for CO2 + water vapor exchange with the
atmosphere? - Correct Answer ✔✔ Guard cell
What is xylem needed in the plant for? - Correct Answer ✔✔ to transport water and
minerals from roots to shoots
What do vascular plants transport throughout the plant? - Correct Answer ✔✔ water
and nutrients
What are the main functions of roots? - Correct Answer ✔✔ support, absorb minerals
and water, and store organic nutrients
What are the main functions of leaves? - Correct Answer ✔✔ absorption of light and
photosynthesis and exchange gas with atmosphere
What are the main functions of stems? - Correct Answer ✔✔ reproduction support and
positioning of leaves for photosynthesis
What is the difference between a root and a shoot system? - Correct Answer ✔✔ root
systems are below the ground and consists of roots and shoot systems is above ground
and consists of stems and leaves
What are the 2 main body parts of a vascular plant? - Correct Answer ✔✔ shoot system
and root system
What are tissues composed of? - Correct Answer ✔✔ multiple cells working together for
a specific function
What are organs composed of? - Correct Answer ✔✔ multiple tissues working together
for a specific function
What are the three basic plant tissues in order from outside to inside? - Correct Answer
✔✔ dermal, ground, vascular
, What is the main function of stolons and rhizones? - Correct Answer ✔✔ to facilitate
asexual reproduction
How do plants increase their capacity for water absorbance? - Correct Answer ✔✔ by
developing root hairs from epidermal cells
What are the 3 basic plan organs? - Correct Answer ✔✔ root, leaf, stem
What are the three most abundant elements in plant tissue? - Correct Answer ✔✔
hydrogen, carbon, oxygen
what does phloem sap consist of and how is it transported? - Correct Answer ✔✔
sucrose; source to sink
What way does water flow in respect to water potential? - Correct Answer ✔✔ from high
water potential to low
What plant type is normally dead at maturity? - Correct Answer ✔✔ vessel element
As water is transported up the xylem, does the water potential become more or less
negative? why? - Correct Answer ✔✔ more negative because water moves from high to
low water potential
How do stomata open? - Correct Answer ✔✔ K+ enters the guard cells, then water
enters, making cells turgid
How is sugar loaded to the phloem? - Correct Answer ✔✔ sucrose is cotransported with
H+
What meristem is responsible for primary growth? - Correct Answer ✔✔ Apical
meristem
True or false: diffusion requires an energy input - Correct Answer ✔✔ false
What are the 4 most common elements found in plants? - Correct Answer ✔✔ carbon,
hydrogen, oxygen, nitrogen
What are loams and why is it important for soil to be loamy? - Correct Answer ✔✔ soils
that have roughly equal amounts of sand, slits, and clay. it provides surface area and
water retention
Why are cations difficult to get access to in soil? - Correct Answer ✔✔ they are bound
strongly to soil particles
How do mycorrhizal fungi contribute to the mutualism they have with plants? - Correct
Answer ✔✔ by increasing the capacity for water uptake
