Quiz 2 Flashcards
Fill in the blanks
Fill in the blanks
What is the sporangium?
receptacle in which asexual spores are formed.
Fill in the blanks
What is meant by double fertilization?
There are two sperm in each pollen grain, one fuses with the egg to make a zygote, the other fuses with both central cells forming a triploid tissue called endosperm which is the nutritive tissue.
What is the collective term for 1?
Calyx (the fused sepals)
What is the collective term for 2?
Corolla (fused petals)
What is the collective term for 1 and 2 together?
Perianth (sepals and petals)
What are the collective terms for 3, 7 & 6 together?
Pistil and gynoecium
What are the collective terms for 4 and 5 together?
androecium and stamen
Define fruit.
ripened ovary containing seeds
Sketch and label a female gametophyte plant
Sketch and label a male gametophyte plant
Sketch the relationship of fruit and seed
What does the seed have?
It’s seed coat and nutritive tissue
Define seed
an embryo plant
which part of the peanut is the shoot and which part is the root?
the hat is the root and the beard is the shoot.
What are the three differeny gynoecium types?
Unicarpellete
Syncarpus
Apocarpus
Define unicarpellate
One carpel, and one simple pistil. one room schoolhouse
Define syncarpus
More than one carpel fused together with a compound pistil “one buliding several rooms”
example. 5 chambers, 5 stigma, 5 carpels
Define apocarpus
many carpels not fused. many pistils “compound of 1 room school buildlings”
example. buttercup family
What are the three relative insertion of flower part types?
Hypogynous
perigynous
epigynous
Define hypogynous
all parts develop below the ovary
“hypogynous with a superior ovary”
Define perigynous
The pistils fit perfectly in the cup. around the ovary. sepals, petals, and stamen are fused.
“perigynous with superior ovary”
Define epigynous
when the pistil doesn’t necisarily fit inside the teacup. has a floral cup with sepals, petals and stamens fused. all parts grow above the ovary.
“epigynous with inferior ovary”
