DON'T FAIL or your Xbox is taken away away away...
Terms in this set (66)
What kingdom do plants belong to?
What five characteristics do all plants have?
1) They are producers
2) They are eukaryotic and multicellular
3) They have organized tissues, especially conducting tissues
4) They have plastids
5) They have cell walls containing cellulose
What are three organs that all plants have? What is an additional organ that some plants have?
roots, stems, leaves, and flowers
What is a node?
A region where a leaf is or was attached. Found only on the stem of a plant
What is a root system?
All the roots of a plant
What do roots do for a plant?
Anchors the plant
Absorbs water and dissolved minerals
Sometimes stores food
Describe a taproot system and include the lateral roots.
Has one or a few main roots that are thicker and longer than the other roots of the plant. The smaller roots that branch from the main root are called lateral roots
Describe the fibrous root system.
This system has a cluster of roots that are about equal in size.
Name and describe the two types of plant stems.
Woody stems - are hard and not very flexible
Herbaceous stems - are softer and flexible
What are plant veins?
Veins are water and sugar-conducting tissues
Name and describe the three types of veins plants can have.
Parallel venation - veins are parallel with each other
Palmate venation - veins branch from the base of a leaf
Pinnate venation - one main vein extending the length of the leaf, with smaller veins branching out from the main vein.
Plant hormones are used to do what
kill weeds, control fruit ripening, and to simulate plant growth
Study of plants is called
What is cellulose made of
Annual Growth Ring
spring wood, summer wood, xylem
The part of leaf between the node and the blade is called the .
Name and describe the three types of leaf arrangements.
Alternate - one leaf attached at the node
Opposite - two leaves attached at the node
Whorled - three or more leaves per node
The cell walls of plants are made largely of .
What is turgor pressure and how does it help support the plant?
The presence of water inside plant cells. This helps the plant to be stiff which supports the plant
What do chloroplasts do and what are found in chloroplasts contain?
Chloroplasts converts the sun's energy into food during photosynthesis. Chlorophyll is found in chloroplasts
Describe xylem and what it does?
They are long hollow cells that resemble straws. They carry water and minerals from the roots up through the plant
What is wood made of?
Layers of xylem that have formed over several years
What is heartwood and sapwood?
Heartwood - Old xylem tubes filled with chemicals
Sapwood - Younger xylem that still carries water
Describe phloem and what it does?
Tubes that are not completely hollow. It carries sugar solutions produced by the leaves to the rest of the plant.
Vascular bundles are often supported by thick-walled cells called
Name two things fibers are used to make.
Rope and cloth
What is the epidermis and what does it do for the plant?
The outermost tissue of leaves, young roots, and young stems. Prevents a plant from losing water and prevents harmful substances from entering the plant.
What is the waxy substance that is sometimes secreted from the epidermis?
What is between the bark and the xylem of a tree and what does it do?
A tissue called vascular cambium. It makes new xylem and phloem cells
What is the outermost layer of the bark called?
What is cork cambium?
A layer of living cells that produce new cork cells.
What is girdling and how does that damage a tree?
When a ring of bark is stripped away from around its trunk. The tree dies as food and water cannot get passed the missing xylem and phloem
How is an annual growth ring made on a tree?
By adding a ring of xylem each year
List the three steps of water movement in a plant.
Entrance through the root
Transport through the xylem
Exit through the leaves
What are tiny extensions of roots called?
Through what process does water enter the xylem cells in the roots of a plant?
What two features of xylem cells help transport water?
The narrow diameter and hollow shape of xylem cells
What are stomata?
Openings between guard cells of a leaf that permit water vapor and gases to pass into and out of the leaf
What are guard cells?
One of the cells that surround a stoma on a plant leaf and control the opening and closing of the stoma.
What is the exiting of water through the leaves called?
What type of respiration do nearly all plant cells use?
aerobic cellular respiration
What are lenticels?
A small opening in the cork layer of woody roots and stems through which gases enter and exit
How do the burrowing of worms and insects help a plant?
They help bring air close to the roots which helps in the gas exchange
What is the palisade layer located and explain how the chloroplasts move in this layer?
the upper layer of leaf tissue that consists of tall, thin, closely packed cells that carry on the majority of photosynthesis. The chloroplasts moved in a circular path around the central vacuole
Where is the spongy layer located and what is special about this layer?
Found below the palisade layer that consists of loosely packed cells that carry on photosynthesis and have many air spaces between them
Why is the underside of many leaves a lighter green than the topside?
There are fewer chloroplasts on the underside
What are two things that photosynthesis need?
Water and carbon dioxide
Why is sugar important?
It contains stored energy captured from sunlight
List two materials, besides sugar, that a plant may use to store energy.
Starch and lipids
Typically, where are growth areas located on plants?
Near the tips of stems and roots between a plant's xylem and phloem in the vascular cambium.
What two things can affect a plant's growth? Surroundings and hormones
Surroundings and hormones
What is auxin?
A growth hormone produced in the growing tips of plants
What are tropisms?
The growth responses of a plant to its environment
What is a positive tropism?
Growth toward a factor in the environment
What is a negative tropism?
Growth away from a factor in the environment
What is phototropism and how does this help a plant?
A plant's response to light. It helps the plant receive more light to be used for photosynthesis
What is thigmotropism?
A plant's response to touch
What is gravitropism?
A plant's growth response to gravity
Give a part of a plant that demonstrates positive gravitropism and a part of a plant that demonstrates negative gravitropism.
Plant roots show positive gravitropism
Plant stems show negative gravitropism
What are nastic movements and what causes them?
Reversible, repeatable plant movements. They are caused by changes in turgor pressure of plant's cells
What is photoperiodism?
A plants response to the length of time it is exposed to light.
What are phytochromes?
Plant pigments that control photoperiodism.
What are short-day plants and what are some examples of short-day plants?
Plants bloom when days are short and nights are long. Apples, violets, ragweed, poinsettias, and soybeans
What are long-day plants and what are some examples of long-day plants?
Plants that require long periods of light and short periods of darkness. Lettuce, clover, and most grains
What are day-neutral plants and what are some examples of day-neutral plants?
Plants that bloom whenever conditions, such as moisture and temperature are acceptable, regardless of the amount of light or darkness. Hybrid roses, dandelions, tomatoes, and cotton
The flat, green part of a leaf is called the? If this looks like it has several leaves, it is called a? Each of the smaller pieces are called?
YOU MIGHT ALSO LIKE...
science chapter ten
Life Science 10 review
Bob Jones Life Science CH 10 questions
Life Science Test #9
OTHER SETS BY THIS CREATOR
Weather - CLES 4th Grade
English Vocab Final