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Janssen Gr 7 Plants

Mrs. Janssen's Grade 7 Plants Test

A green pigment found in the chloroplasts. chlorophyll
What cell organelle do all plant cells have but animals cells don't? cell wall
The process of plants making their own food. photosynthesis
A group of similar cells that performs a specific function. tissue
What are the green structures in plants in which food is made? chloroplasts
What is a large storage sac inside plant cells that can expand and shrink? vacuole
What is the waxy waterproof outside layer of leaves called? cuticle
What is the system of tube-like structures that transport food and water in plants called? vascular tissue
What is an organism that produces its own food called? autotroph
Short plants that do not have roots are known as what kind of plants? nonvascular plants
What are thin, rootlike structure that anchor moss and absorb water and nutrients called? rhizoids
What kind of plants have true vascular tissue? vascular plants
Tubes that carry food in a plant. phloem
Tubes that carry water in a plant. xylem
What is the term for the leaves on a fern? fronds
What are the tiny structures that contain cells that will later become sperm? pollen
What is the structure that contains a young plant inside a protective covering? seed
What kind of plant produces naked seeds? gymnosperm
What is the term for plants that produce cones? conifers
What is another name for flowering plants? angiosperms
What is the term for seed leaf? cotyledon
What are angiosperms that have only one seed leaf called? monocots
What are angiosperms that have two seed leaves called? dicots
What plant structure anchors a plant to the ground and absorbs water and minerals from the soil? roots
What kind of root has one long, thick main root? taproot
What kind of root has a tangled mess of short roots? fibrous
What is on the very tip of roots that protects them from injury? root cap
What is the outermost layer of a woody stem called? bark
What layer of cells in a woody plant divides to produce new xylem and phloem? cambium
What is active xylem that transports water and minerals through the stem? sapwood
What are the small openings or pores on a leaf called? stomata
What is the process by which water evaporates from a plant's leaves called? transpiration
Where does most photosynthesis take place? leaves
What is the term for when the embryo begins to grow and pushes out of the seed? germination
What is the reproductive structure of an angiosperm? flower
What is the transfer of pollen from the male to the female reproductive structures called? pollination
What are the leaf-like structures that enclose a flower bud? sepals
The most colorful parts of a flower. petals
Male reproductive part of a flower. stamen
Female reproductive part of a flower. pistil
The slender tube that connects the stigma to the ovary. style
Hollow structure at the base of the pistil that protects the seeds as they develop. ovary
The part of a plant's life cycle during which spores are produced. sporophyte
The part of a plant's life cycle during which sperm and eggs are produced. gametophyte
Flowering plants that complete a life cycle in one growing season. annuals
Flowering plants that complete a life cycle in two growing seasons. biennials
Flowering plants that live for more than two years. perennials
What process unites a sperm cell with an egg? fertilization
What is another name for a fertilized egg? zygote
What process takes a part of one plant's stem and attaches it to another plant? grafting
What are the reproductive structures of gymnosperms called? cones
What structure contains an egg cell? ovule
As the seed develops, what does the ovary become? fruit
What is the term for a plants' growth response to a stimulus? tropism
What is a chemical produced by a plant that affects how the plant grows? hormone
What is a plant's response to seasonal changes in the length of night and day called? photoperiodism
What is the term for the number of hours of darkness that determines whether or not a plant will flower? critical night length
What is the term for when an organism goes into a period of no growth or activity? dormancy
Plants that flower when the nights are longer than the critical length. short day
Plants that flower when the nights are shorter than the critical length. long day
Plants that can flower no matter how many hours of day and night there are. day neutral
Compressed layers of moss that become compressed into layers and forma blackish brown material. peat
Created by: jjanssen33