What are the functions of the essential elements in a plant?
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Plants need micronutrients and macronutrients to grow including building
blocks, cofactors, and electroneutrality. They need them for support,
storage, and energy use.
Why trees have thick epidermis than herbaceous plants?
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,Within the chloroplast, the photosynthetic light reaction happens in _____________, and the
dark reactions happen in _____________.
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thylakoid; stroma
Which of the following is a FALSE comparison between the xylem and phloem:
a. Xylem supplies water to the leaves; phloem transports food from leaves to the rest
of the plant
b. Xylem cells are at risk of exploding from high positive pressure; phloem cells do
not fail
c. Xylem vessels are usually larger than phloem sieve tubes
d. Water is "pulled" through the xylem; sugar solutions are "pushed" through the
phloem
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b. Xylem cells are at risk of exploding from high positive pressure; phloem
cells do not fail
(see the figure) Is this an active or passive transport?
a. Active
b. Passive
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, a. Active
Which plant process causes nutrients to move toward the rhizosphere by mass flow?
a. Photosynthesis
b. Respiration
c. Transpiration
d. Defense
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c. Transpiration
Plant growth and development is regulated by__________
a. Intrinsic mechanisms
b. Extrinsic factors
c. Both A and B
d. None of the above
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c. Both A and B
Give this one a try later!
Plants need micronutrients and macronutrients to grow including building
blocks, cofactors, and electroneutrality. They need them for support,
storage, and energy use.
Why trees have thick epidermis than herbaceous plants?
Give this one a try later!
,Within the chloroplast, the photosynthetic light reaction happens in _____________, and the
dark reactions happen in _____________.
Give this one a try later!
thylakoid; stroma
Which of the following is a FALSE comparison between the xylem and phloem:
a. Xylem supplies water to the leaves; phloem transports food from leaves to the rest
of the plant
b. Xylem cells are at risk of exploding from high positive pressure; phloem cells do
not fail
c. Xylem vessels are usually larger than phloem sieve tubes
d. Water is "pulled" through the xylem; sugar solutions are "pushed" through the
phloem
Give this one a try later!
b. Xylem cells are at risk of exploding from high positive pressure; phloem
cells do not fail
(see the figure) Is this an active or passive transport?
a. Active
b. Passive
Give this one a try later!
, a. Active
Which plant process causes nutrients to move toward the rhizosphere by mass flow?
a. Photosynthesis
b. Respiration
c. Transpiration
d. Defense
Give this one a try later!
c. Transpiration
Plant growth and development is regulated by__________
a. Intrinsic mechanisms
b. Extrinsic factors
c. Both A and B
d. None of the above
Give this one a try later!
c. Both A and B
