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Science 7 Chapter 11
Plant Classification and Reproduction
Terms in this set (43)
The haploid cells used in sexual reproduction are called
Ovary, style, and stigma are parts of the
In a fern plant, which stage of the life cycle do you most often see?
Nonvascular plants do not contain
xylem or phloem.
Anther, stigma, and pollen are necessary for
a form of stored food in a seed
An underground stem that produces roots and leaves in ferns is a
Organisms that have two of every kind of chromosome are
vascular plants that have been used as an abrasive because of the silica in their cell walls
The giant sequoia reproduces with
Plants that grow back year after year are
What part of a moss plant produces spores?
the stalk and capsule, and the sporophyte generation
fruit and seeds
conifers, pines, and redwood trees
Asexual reproduction in plants includes
root sprouts and plantlets.
True mosses are
Sexual reproduction provides genetic
The largest group of plants is the
the beginning of growth for a new plant
entire female reproductive part of the flower
pistil (recognize on a diagram)
structure that will become the fruit
ovary (recognize on a diagram)
structure that produces pollen
anther (recognize on a diagram)
structure that receives pollen
stigma (recognize on a diagram)
leaf-like structures positioned outermost at the base of a flower
sepals (recognize on a diagram)
The structures in mosses that anchor the plant in the soil and absorb water are called
A fern leaf is called a
The vascular plants that produce seeds that are not completely covered are the
A sugary liquid that attracts pollinators is
the male gametes of a flower are found in the
pollen (or anther).
The life cycle of plants, in which there are two distinct stages called the gametophyte and the saprophyte, is called
alternation of generations.
The structures in ferns that produce spores are called
The male reproductive part of a flower is the
A mature ovary with seeds inside is a
What are the two main groups of seed plants?
gymnosperms and angiosperms
Do any nonvascular plants produce seeds?
No nonvascular plants produce seeds.
plant reproduction events in order
pollination, fertilization, seed development
What are the three parts of a seed?
the embryo, stored food (cotyledons), and a seed coat
The pink dogwood produces beautiful pink flowers. What kind of plant is it, and how do you know?
It is an angiosperm; angiosperms are the flowering plants.
What characteristic of the stigma helps it retain pollen?
It is usually sticky.
Why can't mosses grow more than a few inches tall?
Mosses don't have vascular tissues, so water transport must occur by diffusion. They wouldn't be able to transport water up if they were taller.
What two traits are used to classify plants? Based on these traits, what are the three main groups of plants? Give an example of an organism from each group.
classified based on whether they produce seeds and whether they have vascular tissues.
-Nonvascular plants - mosses, liverworts, and hornworts (nonvascular, no seeds)
-seedless vascular - ferns, horsetails, and club mosses (vascular, no seeds)
-seed plants - gymnosperms and angiosperms (vascular, seeds)
Describe the similarities and differences between gymnosperms and angiosperms.
They both have vascular tissues and produce seeds. They store their seeds in different ways. Angiosperm seeds are fully covered, but gymnosperms are not fully covered. Angiosperms produce flowers, gymnosperms produce cones.
God has designed many methods to help with plant pollination. Describe at least two things that can help transport pollen.
Honeybees, butterflies, moths, birds, and bats can all be pollinators. Flowers that rely on pollinators often have brightly colored petals and specific odors to help attract the pollinators. Some plants do not rely on pollinators. Instead, their pollen is transported by wind. These plants often produce large amounts of pollen to ensure that some pollen makes it to the stigma.
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