Biology chp 8 Flashcards
Tissue
A group of cells that have the same function
Organs
A group of tissue that work together
Plant tissue
Xylem and ground tissue
Xylem tissue function
transports water and minerals
Ground tissue adaptation
Has lots of chloroplasts for photosynthesis
Ground tissue function
Carries out photosynthesis and has food storage
Xylem tissue adaptation
Continuous hollow tube
Animal tissue
Muscles and nervous system
Muscles function
Allow movement in the body
Muscles adaptation
Mitochondrian for respiration
Nervous tissue function
Send electrical impulses to brain and spinal cord
Nervous tissue adaptation
Consists of Schwann cells that produce myelin
Growth of cells outside the organism
In vitro growth
Tissue culture
Growth of cells in a sterile nutrient medium environment outside the organism
Conditions necessary
Sterile , right temp , nutrients
Applications of tissue culture
Plant breeding + skin grafts
Plant breeding
Micro-propagation is the growth of large numbers of plant cells and tissues
Benefits of plant breeding
Cheap , large quantities on a short time
Skin grafts
The growing of ne skin for badly burnt patients
Benefits of skin grafts
New skin won’t be rejected, no need to remove skin from other parts of the body.
Plant organ
Leaf
Heart contains
Cardiac tissue and connective tissue
Animal organ
Heart
Leaf contains
Dermal tissue , vascular tissue and ground tissue
System
A number of organs working together to carry out one or more functions eg digestive system
