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58 terms

Photosynthesis - Daily Quiz

STUDY
PLAY
Gas exchange in most land plants occur through structure called
stomata
Which of the following plants has a dominant sporophyte generation and a seed, but no fruit
pine tree
In plants the vascular tissue made of dead cels that transport water and minerals from the roots is called
xylem
In plants, the vascular tissue that consists of living cells that distribute sugars throughout the plant is caled
phloem
the type of life cycle seen in plants is called
alternation of generations
the majority of plant species today are
angiosperms
The dominant stage of mosses is the
gametophyte
which type of vascular tissue cell in a pplant is dead at maturity
vessel elements
Which of the following statements regarding ferns is true
ferns have well developed vascular tissue roots and stems
About 95% of all modern plant species
have a dominant sporophyte in their life cycle
What force is responsible for the cohesiveness of water
hdrogen bonding of water molecules
which of the following produces the greatest amount of transpiration cohesion tension force
the pull on water from dry air
the two main forces that move water through a plant are
transpiration and root pressure
the pores that facilitate gas exchange in plant leaves are called
stomata
Which of the following growth responses cause the shoots of a plant grow toward light
phototropism
in producing capillary action in vascular plants the adhesive property of water is most important in the
xylem
which of the following growht response causes the shoots of a plant grown in the dark to grow upward
gravitropism
The plant growht response to touch is known as
thigmotropism
If the sun were to disappear right now we wouldnt know about it for 8 minutes because it takes 8 minutes
for light to travel from sun to earth
arotene is another plant pigment that absorbs light in the orange portion of the visible light spectrum
true
CO2 enters and O2 escapes frome a leaf via
stomata
of the following wavelenths of light, which would you expect to be reflected or transmitted by chlorophyll a
green
most of the electromagnetic spectrum consists of visible light
false
why are most plants green
chlorophyll reflects green light
the process that makes ATP is chemiosmosis. This occurs in both mitochondria and chloroplasts
true
sunligt is a type of _________energy
electromagnetic
autotrophs that utilize light as their energy source are
photoautotrophs
which of the following colors contribute the least energy to photosynthesis
green
which of the follwing photosynthetic pigments can be found at the Photosystem II reacton center
P680
The electrons lost from P680 of photosystem II are replaced by electrons from
H2O
The electron transport chain of the light reactions shuttle electrons along in a series of redox reactions correctively known as
non cyclic electron flow
a packet of light energy is called a
photon
due to its function in the formation of ATP the inner thylakoid space corresponds to the ________of the mitochondrion
intermembrane space
chloroplasts contain dislike membranous sacs called
thylakoids
the eletrons lost from P680 of photosystem II are replaced by electrons from
H2O
The electron transport chain of the light reactions shuttle electrons along in a series of redox reactions collectively know as
non cyclic electron flow
a packet of light energy is called a
photon
due to the function in the formation of ATP the inner thylakoid space corresponds to the __________of the mitochondrion
intermembrane space
Chloroplasts contain dislike membranous sacs called
thylakoids
The elctrons lost from P700 of photosystem I are replaced by electrons from
photosystem II
which of the following photosynthetic pigments can be found at the photosystem I reaction center
P700
Which of the following are produced during the light reactions of photosynthesis
ATP, NADPH, O2
Chloroplats contain dislike membranous sacs arranged in stacks called
grana
the oxygen release into the air as a product of photosynthesis comes from
water
as a result of the cascade of electrons down the electron transport chain from photsystem I
NADP+ is reduced to NADPH
is is true that plants contain the pigment chlorophyll it is specifically located in ______________
photosystem I and II
The ATP and NADPH are used during the
reduction phase
THe ultimate source of all the food we eat and the oxygen we breathe is
photosynthesis
what are the conditions that lead to photorespiration
all of the above
the calvin cycle requires _______and ______ from the light dependent reaction in order to operate
ATP.... NADPH
which of the following are prodcued during the Calvin Cycle
glyceraldehyde 3 phosphate ADP NADP+
the calvin cycle constructs _____an energy rich molecule that a plant cell can then use to make glucose or other organic molecules
glyceralderhyde 3 phosphate
In an herbicide blocked the Calvin cycle before the gernation of glyceraldehyde 3 phosphate which of the following statements would be true
no sugar would be made by the plant
the addition of oxygen to RuBP by rubisco to form a two carbon product that is then browkendown by the cell to carbon dioxide and water defins
photorespiration
carbon fixation
occurs when CO2 is incorporated into an RuBP
Photorespiration
is an evolutionary relic from when atmospheric O2 levels were low and didnot interfere with rubisco
To produce one glucose the calvin cycle needs to be run through______times
two
Ribulose 1 and 5 biphosphate are recreated during
Regeneration of the CO2 Acceptor Phase