Lesson 1 (finals) Flashcards
(24 cards)
________ are groups of cell that work together to perform a specific function in an organism. In multicellular organisms, tissues are the building blocks that form organs and systems.
Tissues
The organization of tissues into organs and systems allows for specialized functions that are essential for the survival and proper functioning of the organism.
Tissues
what are the two types of tissues
- Plant tissues
- Animal tissues
Importance of Tissues (4)
- Specialization
- Organization
- Support and Protection
- Growth and Repair
Tissues allow for the ___________ of cells to perform specific functions efficiently.
Specialization
Tissues are organized into organs ad systems, providing a higher level of function and coordination.
Organization
Tissues such as connective and dermal tissues provide structural support and protection to the organism
Support and Protection
Meristematic tissues in plants and certain animal tissues (like stem cells) play a crucial role in __________
Growth and Repair
4 types of plant tissues
- Meristematic tissue
- Dermal tissue
- Ground tissue
- Vascular tissue
CHARACTERISTICS: undifferentiated, actively dividing cells.
FUNCTION: Growth in length and girth; responsible for plant growth; cells are undifferentiated and actively dividing.
TYPES: Apical, Lateral, and Intercalary meristems
Meristematic tissue
3 types of meristematic
- Apical
- Lateral
- Intercalary meristems
CHARACTERISTICS: protective outer covering.
TYPES: Epidermis (outer layer of cells), Periderm (in woody plants).
FUNCTION: Protection, gas exchange, and water retention.
EXAMPLE: Guard cells in stomata
Dermal tissue
2 types of dermal
- Epidermis
- Periderm
CHARACTERISTICS: fills the interior of the plant.
TYPES: Parenchyma (photosynthesis and storage), Collenchyma (flexible support), Sclerenchyma (rigid support).
FUNCTIONS: photosynthesis, storage and support.
Ground tissue
3 types of ground tissue
- Parenchyma
- Collenchyma
- Sclerenchyma
CHARACTERISTICS: transport system of the plant.
TYPES: Xylem: transports water and mineral. Phloem: transports sugars and nutrients.
FUNCTIONS: transports water, minerals, and nutrients throughout the plant.
Vascular tissue
2 types of vascular
- Xylem
- Phloem
types of animal tissues (4)
- Epithelial tissue
- Connective tissue
- Muscle tissue
- Nervous tissue
CHARACTERISTICS: tightly packed cells, covers body surfaces
TYPES: Based on layer: simple, stratified, pseudostratified, glandular. Based on cell shape: squamous, cuboidal, columnar.
FUNCTIONS: protection, absorption, secretion.
EXAMPLE: skin, lining of the gut.
Epithelial tissue
CHARACTERISTICS: cells embedded in an extracellular matrix.
TYPES: loose, dense, cartilage, bone, blood.
FUNCTIONS: support, transport, insulation.
EXAMPLE: blood, bone, adipose tissue.
Connective tissue
5 types of connective tissue
- Loose
- Dense
- Cartilage
- Bone
- Blood
CHARACTERISTICS: contractile cells.
TYPES: skeletal, cardiac, smooth
FUNCTIONS: movement, posture, heat production.
EXAMPLE: heart muscle, biceps
Muscle tissue
3 types of muscle tissue
- Skeletal
- Cardiac
- Smooth
CHARACTERISTICS: neurons and supporting cells.
FUNCTION: transmit electrical impulses, process information.
EXAMPLE: brain, spinal cord, nerves
Nervous tissue
