Week 7 Flashcards
Contractile Vacuole
An organelle found in certain eukaryotic cells, it pumps water out of the cell
Bryophytes (non vascular plants)
They don’t have any vascular tissue
Tissue
A group of similar cells that perform a particular task in an organism
Organ
A group of tissues integrated to perform one or more functions in an organism
Basic tissue types
Meristem
Dermal
Ground
Vascular
Meristem tissue
Unspecialized cells capable of dividing
Dermal tissue
Protection and exchange with the environment
Ground tissue
Several types of variety of functions (aka filler tissue)
Vascular tissue
Transport of substances in plants
Two types of vascular tissue
Phloem
Xylem
Phloem
Transports sugar into the plant
Two types of phloem are companion cells and sieve tube members
Xylem
Transports water and minerals from the roots
Two types of cells in xylem are tracheids and vassal elements
Plant organs
Root
Stem
Leaf
Flower
Root
Absorbs water and minerals, anchors the plant and stores food
Stem
Holds leaves up and transport between leaves and roots, photosynthesis and stores food
Leaf
Photosynthesis, protection
Flower
Sexual reproduction
Primary tissues
Vascular Cambium
Primary Xylem
Primary phloem
Pith
Fibres
Cortex
Secondary tissues
Mature from cambium
Cambium cells that remain grow and divide
New cells produced turn into secondary tissues
Stoma
Allows air to get in and out of the leaf
Has 2 guard cells
Palisade mesophyll
Top of the leaf
Spongy Mesophyll
Bottom of the leaf
Source cell
A source of sugar
Sink cell
Removing sugar from the flow
Monocot
In a Monocot seed there is only 1 cotyledon
Dicot
In a dicot seed there is 2 cotyledons
Kingdom Fungi
They are chemoheterotrophic
Absorb Nutrients from the environment
Typically multicellular
Typically made up of filaments called hyphae
Zygomycota
When they fuse together they become zygosporangium
Basidiomycota
The haploid mycelia, two different mating types can fuse together but the nuclei don’t
The cells of the basidiocarp each have 2 haploid nuclei
Kingdom animalia
Chemoheterotrophic
Multicellular
Tissues, organs
Organ systems
Maintain homeostasis
Homeostasis
The steady state physiological condition of the body
Osmotic potential
The concentration of solute in your body fluids
Four basic animal tissue types
Epithelial tissue
Connective tissue
Muscle tissue
Nerve tissue
