#Question id: 10176
#Unit 6. System Physiology – Plant
Leaves acclimate to sun and shade environments, Sun and shade leaves have contrasting biochemical and morphological characteristics such as
a.) Shade leaves increase light capture by having more total chlorophyll per reaction center, a higher ratio of chlorophyll b to chlorophyll a, and usually thinner laminae than sun leaves
b.) Sun leaves decrease CO2 assimilation by having less rubisco and can dissipate excess light energy and Morphologically they have thinner leaves and a larger palisade layer than shade leaves
c.) Shade leaves decrease light capture by having low total chlorophyll per reaction center, a higher ratio of chlorophyll b to chlorophyll a, and usually thicker laminae than sun leaves
d.) Sun leaves increase CO2 assimilation by having more rubisco and can dissipate excess light energy and Morphologically they have thicker leaves and a larger palisade layer than shade leaves
Which of the following combination from the above statements are TRUE?
#Question id: 10177
#Unit 6. System Physiology – Plant
Shady habitats proportionally more abundant far-red light, which is absorbed primarily by photosystem I (PSI) at P700nm, for better balance the flow of energy through PSII and PSI so, what will be the changes appear to enhance light absorption and energy transfer in shady environments?
a.) some shade plants is
to produce a higher ratio of PSII to PSI reaction centers, compared with that
found in sun plants
b.) photosystem I (PSI)
for enhancing light absorption and energy transfer in shady plants increases
their reduction potential
c.) some shade plants add
more antenna chlorophyll to PSII to increase absorption by this photosystem
d.) photosystem I (PSI)
for enhancing light absorption and energy transfer in shady plants decreases
their reduction potential
Which of the following above combination is TRUE?
#Question id: 10178
#Unit 6. System Physiology – Plant
Heliotropism is another term used to describe leaf orientation by solar tracking. Some plant species, such as soybean, have leaves that can display different movement such as
a. When the well watered condition plant shows diaheliotropic movements
b. When the well watered condition plant shows Para heliotropic movements
c. When the water stress condition plant shows paraheliotropic movements
d. When the water stress condition plant shows diaheliotropic movements
Select Correct combination about soyabean plant;
#Question id: 10179
#Unit 6. System Physiology – Plant
A a plant to invest energy in developing multiple cell layers, they are shaped like pillars that stand in parallel columns one to three layers deep. Below the epidermis, the top layers of photosynthetic cells are called
#Question id: 10180
#Unit 6. System Physiology – Plant
The non uniformly distribution of chloroplast, light is only absorbed by the chlorophyll molecules in the cholorplast rest of the light penetrates to the cell known as
#Question id: 10181
#Unit 1. Molecules and their Interaction Relevant to Biology