plant organs snc2d. plant tissues recall that a plant is made up of 4 types of tissues:
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Plant OrgansPlant Organs
SNC2DSNC2D
Plant TissuesPlant Tissues
Recall that a plant is made up of 4 types of Recall that a plant is made up of 4 types of tissues:tissues:
Plant TissuesPlant Tissues
Recall that a plant is made up of 4 types of Recall that a plant is made up of 4 types of tissues:tissues:
epidermalepidermal groundground vascularvascular meristematicmeristematic
Plant TissuesPlant Tissues
Recall that a plant is made up of 4 types of Recall that a plant is made up of 4 types of tissues:tissues:
epidermal (the “skin”)epidermal (the “skin”) ground (the support)ground (the support) vascular (the transport)vascular (the transport) meristematic (growth)meristematic (growth)
Plant OrgansPlant Organs
These tissues group together to form organs that These tissues group together to form organs that perform special functions.perform special functions.
Plant OrgansPlant Organs
These tissues group together to form organs that These tissues group together to form organs that perform special functions. perform special functions.
These organs are the:These organs are the: rootsroots stemsstems leavesleaves flowersflowers
RootsRoots
RootsRoots anchor the plant in the soilanchor the plant in the soil
RootsRoots
RootsRoots anchor the plant in the soilanchor the plant in the soil collect water and nutrients from the soilcollect water and nutrients from the soil
RootsRoots
RootsRoots anchor the plant in the soilanchor the plant in the soil collect water and nutrients from the soilcollect water and nutrients from the soil store foodstore food
RootsRoots
The centre of the root is made up of ground and The centre of the root is made up of ground and vascular tissue. The root is covered with protective vascular tissue. The root is covered with protective epidermal tissue ending in the root cap, below which epidermal tissue ending in the root cap, below which is a layer of meristematic tissue, which allows the is a layer of meristematic tissue, which allows the root to grow.root to grow.
StemsStems
StemsStems support the leaves and flowerssupport the leaves and flowers transport water and nutrientstransport water and nutrients
StemsStems
Again, ground tissue provides the strength and support Again, ground tissue provides the strength and support while vascular tissue transports substances around, while vascular tissue transports substances around, and epidermal tissue provides a protective covering, and epidermal tissue provides a protective covering, usually secreting a waxy substance known as the usually secreting a waxy substance known as the cuticle to reduce water loss.cuticle to reduce water loss.
LeavesLeaves
LeavesLeaves photosynthesize (convert carbon dioxide and photosynthesize (convert carbon dioxide and
water to oxygen and glucose sugar)water to oxygen and glucose sugar)
LeavesLeaves
The water and sugar are carried by the vascular tissues. The water and sugar are carried by the vascular tissues. COCO22 and O and O22 (and excess water) enter and exit through (and excess water) enter and exit through
openings in the epidermal tissue called stomata. openings in the epidermal tissue called stomata.
Most of the leaf is made of a specialized ground tissue Most of the leaf is made of a specialized ground tissue called mesophyll, which is where photosynthesis called mesophyll, which is where photosynthesis occurs.occurs.
RespirationRespiration
Note that in order to use the energy stored in Note that in order to use the energy stored in glucose for cellular functions, the cells must glucose for cellular functions, the cells must perform perform respirationrespiration::
glucose + oxygen glucose + oxygen water + CO water + CO22 + energy + energy
RespirationRespiration
Note that in order to use the energy stored in Note that in order to use the energy stored in glucose for cellular functions, the cells must glucose for cellular functions, the cells must perform perform respirationrespiration::
glucose + oxygen glucose + oxygen water + CO water + CO22 + energy + energy
Remember:Remember:
Respiration is NOT breathing.Respiration is NOT breathing.
Plants use oxygen too (usually at night)!Plants use oxygen too (usually at night)!
FlowersFlowers
FlowersFlowers produce seeds through sexual reproductionproduce seeds through sexual reproduction
Flowering plants are called angiosperms.Flowering plants are called angiosperms.
To DoTo Do
Perform the dissection of a flower as outlined Perform the dissection of a flower as outlined on the handouton the handout
Answer questions #1 – 5 on page 60Answer questions #1 – 5 on page 60
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