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Plants
Photosynthesis
42
Science
7th Grade
11/07/2013

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Term
Name 3 products of Photosynthesis
Definition
1. to make food in the leaves of plants
2. Replenishes the oxygen supply in the air
3. Returns some water to the air
Term
Producers
Definition
Green plants that make food through photosynthesis
Term
Consumers
Definition
Animals and people who eat plants
Term
Herbivore
Definition
Plant eating animals
Term
Carnivore
Definition
meat eating animals
Term
Photosynthesis
Definition
the food making process of plants
Term
Chloroplasts
Definition
tiny structures inside the plants cells which contain chlorophyll(green pigment in plants)
Term
Chlorophyll
Definition
green pigment in plants that absorbs light energy and uses it to make the chemical ATP
Term
What do plants use ATP
(adenosine tri-phosphate) for?
Definition
ATP is made in plants when chlorophyll absorbs light energy. Plants use the chemical energy from ATP to make its own food in the form of glucose (simple sugar)
Term
Without __________ there would be no photosynthesis in the plant.
Definition
chlorophyll
Term
Name the 5 steps in the Process of Photosynthesis...
Definition
1. Water enters the plant through the roots
2. Water is broken down by the sun's energy into hydrogen and oxygen
3.Carbon Dioxide enters the leaf through tiny holes in the leaf's bottom called stomata.
4. Hydrogen and carbon dioxide combine into glucose, and extra oxygen is released into the air through the stomata.
5. Glucose is usually changed into starches for storage in the plant.
Term
Stem
Definition
The part of the plant that supports leaves and flowers.
Term
Woody Plants
Definition
Plants that live several years and develop a large amount of wood in their stems.
Term
Herbaceous Plants (Herbs)
Definition
Non-Woody Plants
Term
Uses of Glucose
Definition
Glucose is used to make protein, fats, cellulose and vitamins
Term
Cellulose
Definition
carbohydrate found in the cell wall of plant cells
Term
Vine
Definition
Any plant with a long, thin stem that grows along the ground or has tendrils that twine around a wall or other support.
Term
Name some Herbaceous vines
Definition
Cucumbers, beans, and morning glories
Term
Name a woody vine
Definition
Grape Vine
Term
Function of Roots
Definition
to anchor the plant and absorb water and store food (like carrots)
Term
Taproot system
Definition
the primary or main root that grows straight downward and remains bigger than the secondary rootlets ;dicots
Term
Fibrous Root System
Definition
primary root remains small and many slender secondary rootlets grow from it in all directions; monocots
Term
Some roots spread out and make_____ _____
Definition
new plants.
Term
Vegetative Reproduction
Definition
plant reproduction without flowers, seeds, or fruits.
Term
Root cap
Definition
outer cone shaped tip of the root,
Protects the new cells as they push through the soil to lengthen the root
Term
Primary Growth
Definition
Growing longer
Term
Secondary Growth
Definition
growing fatter in diameter
Term
Root Hairs
Definition
grow from the sides of the root and force their way into the soil to absorb water and minerals
Term
The process where water is absorbed through the cell membranes of the root hairs is called
Definition
Osmosis
Term
Osmosis
Definition
movement of water from a solution of higher water content through a semipermeable membrane into a solution of lower water content.
Term
Semipermeable Membrane
Definition
Membrane that will allow some molecules to pass through.
Term
Cortex
Definition
inner part of the root made of storage cells
Term
Plant Vascular System
Definition
water and food transport system of the plant consisting of two types of tissues: Xylem tissue and Phloem tissue
Term
What does the Xylem Tissue do in plants?
Definition
Carries water and nutrients from the root hairs up through the root, stem, and leaves.
Term
What does the Phloem Tissue in plants do?
Definition
Carries sugar from the leaves back to the stem and roots for storage
Term
Name two things that help water to rise through the xylem in plants.
Definition
Root pressure and capillary action
Term
Root Pressure
Definition
the upward force that results as water enters the roots by osmosis
Term
Capillary Action
Definition
the tendency of water to move up in response to surface tension
Term
Transpiration
Definition
how plants lose water through evaporation of water from the leaves
Term
To maintain water balance in the leaf plants tend to
Definition
"pull" water into themselves to balance water lost from transpiration.
Term
Starches
Definition
complex chains of glucose units
Term
List two main kinds of root systems-
Definition
1. Dicot root system with a taproot system
2. Monocot root system with a fibrous root system
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