Cellular powerhouse, site of respiration adn ATP formation; contains matrix and cristae.
Consists of a primary and secondary; composed in part of cellulose, hemicellulose, adn lignin; provides support, protection, and conduction
Control center of the cells, contains DNA adn protein; provides genetic control for metabloism
Fluid filled sac, stores various substances, can vary in size, can occupy up to 90% of mature cell
Organelles double in number, metabolism increases, chromatin is duplicated, protein synthesis occurs, and components of spindle fibers formed.
Site of protein synthesis, composed of a network of membrane channels, consists of rough adn smooth
Site of protein synthesis, composed of protein and RNA to form protein synthesis apparatus, translate DNA code to amino acid chains.
Stacks of flattened membranous sacs or tubes, package proteins, fats, oils, etc. for secretion and storage.
The division of the sytoplasm and the plasma membrane following the division of the nucleus resulting into two cells, each having its own nucleus and sytoplasm surrounded by a plasma membrane.
Type of plastid, contain diverse pigments (red, orange, yellow), abundant in flowers and fruits.
Monocot fiburous root
Highly branched root that lacks a main central root; characteristic of monocots
4 plant organs and the function
1. Roots-Take up nutrients and water
2. Stem-Support and storage
3. Leaves-Receive sunlight and make photosynthesis
4. Fruit-The mature ovary and all associated parts
8 important roles of plants
Refers to flower induction via exposure to a certain cold temperature for a specific duration of time, gibberellins many be involved. Period and intensity varies with species and cultivar, and 32-50 degrees is the average temp. range required for this process to occur.
4 components of a seed and function
1. Seed Coat-Protection
2. Embryo-Seedling plant
3. Endosperm-Storage of foods
4. Enzymes and horomones-Digest food
Seed dormancy mechanisms
1. Immature embryo
2. Impermiable seed coat or hardseededness
3. Mechanical resistance
Factors affecting seed quality
1. Length of seed storage
2. Conditions of seed fill3
3. Conditions of seed storage
Stages of plant development
1. Seed germination
2. Vegetative growth
3. Initiation and maturation of reproductive organs and tissues
5. Seed development
6. Scenescence and Death
4 environmental factors that affect plant groth and development