Flowers
Fruit
Stems
Seeds
Roots
100
What part of a flower produces pollen?
anther (stamen)
100
What is the primary purpose of fruit?
enclose and disperse seeds
100
What is the inactive xylem at the center of a woody stem called?
heartwood
100
What is the tiny baby plant inside the seed called?
embryo
100
Ginger comes from an underground structure known as a rhizome. Which of the following best describes the rhizome?
A. root
B. stem
C. fruit
B. stem
200
What is the primary purpose of flowers?
seed production
200
Which is not a simple fruit?
A. peanuts
B. pineapple
C. papaya
D. peaches
B. pineapple
200
_______ is to wood as ______ is to bark.
(xylem, phloem)
xylem, phloem
200
Which is the first step in the process of seed germination?
A. the root begins to grow
B. the seed begins to absorb water
C. the shoot begins to grow
D. the leaves begin to perform photosynthesis
B. the seed begins to absorb water
200
Why does high salt content in the soil kill plants?
the salt sucks the water out of the plant's roots and the plant wilts
300
What determines when a flower forms and opens?
light / length of day and night
300
What cuts a fruit from the stem?
A. dissection layer
B. hormonal layer
C. abscission layer
D. endospermal layer
C. abscission layer
300
What is the tough outer part of a monocot stem called?
BONUS: What is the outer part of a dicot called?
rind
BONUS: epidermis
300
What is the function of the endosperm?
BONUS: What structure in the seed stores the endosperm?
Provide food for the developing plant.
BONUS: cotyledons
300
The tiny, tube-like projections that extend from the epidermal cells of roots to absorb water from the soil are ______ ______.
root hairs
400
A flower without true petals is a ______ flower.
A. monoecious
B. dioecious
C. incomplete flower
D. complete flower
C. incomplete flower
400
What part of the flower develops into the fruit?
ovary / receptacle
400
How is the structure of an herbaceous monocot stem different from that of an herbaceous dicot stem? Give two differences.
monocot: vascular bundles scattered, no pith, rind
dicot: vascular bundles in ring, contains pith, no rind
400
Reproductive cells, such as egg cells and sperm cells, that unite to form an embryo in a plant seed, are known as _______.
A. pollen
B. seeds
C. gametes
D. cotyledons
gametes
400
Which is not one of the factors that drives the sap stream?
A. capillarity
B. transpiration pull
C. root pressure
D. root growth
D. root growth
500
Identify structures 1-10
500
Which is a true nut?
A. walnut
B. peanut
C. hickory nut
D. cashew
C. hickory nut
500
What are the small openings in a stem's bark that allow air to enter the stem?
lenticels
500
Give four examples of agent dispersal.
wind, water, man, animals
500
_____________ roots sprout from the stem of a plant.
adventitious