bio 152 unit 4 uky jones UPDATED
ACTUAL Exam Questions and CORRECT
Answers
autotroph - CORRECT ANSWER - self-feeding organisms; algae and plants
heterotroph - CORRECT ANSWER - outside feeding organisms that get energy from
other organic compounds; animals, fungi, protists
photosynthesis - CORRECT ANSWER - process where plants and other organisms use
sunlight to synthesize foods from co2 and h2o
transpiration - CORRECT ANSWER - process of water movement through a plant and its
evaporation; this allows for osmotic pressure changes and mass flow of nutrients
osmosis - CORRECT ANSWER - diffusion of water across a membrane from low conc to
high conc. exports solutes +water
humidity - CORRECT ANSWER - saturates leaves with water vapor
stoma - CORRECT ANSWER - where gas/air enters and leaves the plant; located on
epidermis
epidermis - CORRECT ANSWER - protective layer of cells
similarities: plants and animals acquiring energy from their environment - CORRECT
ANSWER - obtain energy from food through cellular respiration
, differences: plants and animals acquiring energy from their environment - CORRECT
ANSWER - plants use co2, water, and sunlight to make their own food. animals have to
eat for their energy
cuticle functions(pros) - CORRECT ANSWER - traps all the valuable water inside.
cuticle function(cons) - CORRECT ANSWER - water vapor and o2 molecules exit
through the same path that co2 enters (opposite direction)
how do guard cells open a stomata - CORRECT ANSWER - an increase in swelling
causes the stomata to open
how do guard cells close a stomata - CORRECT ANSWER - a decrease in swelling causes
it to close
C3 plants - CORRECT ANSWER - (most common) plants open stomata to allow co2 in
during photosynthesis during the day because of high water loss during the day
CAM plants - CORRECT ANSWER - plants open stomata at night and close during the
day. reduces water loss, stores co2, and requires energy
how is co2 delivered to photosynthetic cells - CORRECT ANSWER - direct diffusion
through air-filled spaces
what tissue in the stem system is impermeable to water and gasses - CORRECT
ANSWER - cuticle
most terrestrial green plants are... - CORRECT ANSWER - autotrophs
C4 plants - CORRECT ANSWER - rely on soil moisture during the day to keep up with
water loss through the leaves(transpiration)
ACTUAL Exam Questions and CORRECT
Answers
autotroph - CORRECT ANSWER - self-feeding organisms; algae and plants
heterotroph - CORRECT ANSWER - outside feeding organisms that get energy from
other organic compounds; animals, fungi, protists
photosynthesis - CORRECT ANSWER - process where plants and other organisms use
sunlight to synthesize foods from co2 and h2o
transpiration - CORRECT ANSWER - process of water movement through a plant and its
evaporation; this allows for osmotic pressure changes and mass flow of nutrients
osmosis - CORRECT ANSWER - diffusion of water across a membrane from low conc to
high conc. exports solutes +water
humidity - CORRECT ANSWER - saturates leaves with water vapor
stoma - CORRECT ANSWER - where gas/air enters and leaves the plant; located on
epidermis
epidermis - CORRECT ANSWER - protective layer of cells
similarities: plants and animals acquiring energy from their environment - CORRECT
ANSWER - obtain energy from food through cellular respiration
, differences: plants and animals acquiring energy from their environment - CORRECT
ANSWER - plants use co2, water, and sunlight to make their own food. animals have to
eat for their energy
cuticle functions(pros) - CORRECT ANSWER - traps all the valuable water inside.
cuticle function(cons) - CORRECT ANSWER - water vapor and o2 molecules exit
through the same path that co2 enters (opposite direction)
how do guard cells open a stomata - CORRECT ANSWER - an increase in swelling
causes the stomata to open
how do guard cells close a stomata - CORRECT ANSWER - a decrease in swelling causes
it to close
C3 plants - CORRECT ANSWER - (most common) plants open stomata to allow co2 in
during photosynthesis during the day because of high water loss during the day
CAM plants - CORRECT ANSWER - plants open stomata at night and close during the
day. reduces water loss, stores co2, and requires energy
how is co2 delivered to photosynthetic cells - CORRECT ANSWER - direct diffusion
through air-filled spaces
what tissue in the stem system is impermeable to water and gasses - CORRECT
ANSWER - cuticle
most terrestrial green plants are... - CORRECT ANSWER - autotrophs
C4 plants - CORRECT ANSWER - rely on soil moisture during the day to keep up with
water loss through the leaves(transpiration)
