Crop Production - Lab exam 1 Flashcards
Three basic tissue types in a crop plat
Dermal, ground, vascular
The outermost tissue
Dermal tissue
the “pipelines” in the plant are known as
vascular tissues
Conducts water and minerals
Xylem
Transports photosynthetic products from the leaves
Phloem
Regions of active cell division that give rise to the primary growth of various tissue types
Meristems
located at the tip of roots and shoots
Apical meristems
located at the axils of leaves
Axillary leaves
Constitute the major underground portion of the plant and are specialized for anchorage, absorption, storage, and conduction
roots
primary root in most monocotyledons that is usually short-lived ad the main root system developed from ________ roots that arise from nodes on the base of the stem below or just above the soil surface
adventitious
In monocotyledons, no root is more prominent than the others, and the root system is known as the
fibrous root system
in dicotyledons, the _______ of the embryo forms a substantial, tapering main room from which smaller ________ usually arise. This type of root system is called a _______.
primary root; lateral roots; taproot system
reproductive structure in plants
Flower
4 parts of the flower
stamens, pistil, petals, sepals
Pollens are produced in the
Stamen
Pistil is composed of
stigma, style, ovary
Which flower lacks one or more of the four parts?
Incomplete flower
Imperfect flowers are incomplete flowers that lack either the _________ or the ______
Stamen or Pistil
Plants that have male and female flowers on separate plants
Dioecious plants
Group of flowers clustered together
Inflorscence
Mature fertilized ovary containing the seed or seeds
Fruit
Fruits could be divided into _____ and _______
fleshy fruits and dry fruits
The dry fruits are divided into ________ and _______
dehiscent dry fruits and indehiscent dry fruits
Fleshy fruits examples
apples and tomato
Dehiscent dry fruits
the ovary split ope at maturity (soybean, alfalfa, canola, milkweed)
Indehiscent dry fruits
the ovary did not split open at maturity (sunflower, grasses)
Caryopsis
the ovary wall attached to the seed
Inflorescence
flowers clustered together on brances or a system of branches
Florets
Flower for grasses
Types of inflorescences
Spike (wheat, rye, barley)
Panicle (oat, smooth brome)
Raceme (alfalfa)
Umbel (birds foot trefoil) - all flowers coming from one point
Head (sunflower, Canada thistle) - many flowers on one head
Stamen (male or female?)
male
Pistil (male or female?)
Female
Monocots
1 cotyledon
mostly parallel veined
fibrous adventitious roots
Dicots
2 cotyledons
usually net veined
strong taprot
Cellulose
major component of cell wall - polymer of glucose molecules. Cell wall strength. Production of energy fuels from plant sources
Nodes
point of attachement for leaves
Functions of stems
conduction of water, nutrients, products of photosynthesis, support for leaves and fruits
Deep-rooted species
taproot system
Root functions
underground portion
- anchorage
- absorption
- storage
- conduction
Stems develop from:
the embryonic shoot or from a bud of an existing stem
More tillers =
More yield
Types of ligule
Absent, hairy, membranous
Bulb
disc stem and enlarged fleshy leaves
Conduction tissues in leaves
veins
types of auricles
claw like, short/stubby, sbsent
Primary photosynthetic organ of the plant
leaf
2 components of the plant cell are
cell wall and protoplast
Gives plant cell walls their strength and rigidity
cellulose
A component of plant cell walls, negatively affects the digestibility of forages
Lignin
Protoplasm of a plant cell consists of
Plasma membrane, cytoplasm, nucleus
Functions of nucleau in plant cells
Controls protein synthesis and stores genetic information in the form of DNA
Where is genetic information stores _____ in the form of ______
Nucleus; DNA
Organelle of photosynthesis
Cloroplasts
Organelle of Respiration
Mitocondria
Organelle of secretions
Golgi bodies
Organelle of distribution of cellular substances
Endoplasmic reticulum
organelle ATP formation
Mitocondria
Importance of vaculose
water balance, pigment depostion, storage of various ions and molecules
What gas is produced in the mitochondria during respiration?
Carbon Dioxide
What gas is produced in the chloroplasts during photosynthesis?
Oxygen
What part of the cell is especially important in energy fules production
Cell wall
In a taproot system,
it is easy to differentiate between the primary and secondary roots
the Vascular tissues that is responsible for transporting photosynthesates from the leaf to the flower is
Phloem
Monocot plants have a ______ root system
Fibrous
In most occasions, you will observe the following parts in the leaf of a grass plant
Leaf Blade, Leaf Sheet, Auricles, Ligules
Incomplete but a perfect flower will be lacking
the Sepals or Petals
The arrangements of flowers is an inflorescence could:
be an Umbel, a Spike, or a Panicle
In palmately compound leaves,
leaflets arise from a common point