It might seem as if a pollinator such as a bee goes to all types of flowers, but it doesn't. Bees
visit only certain flowers - the ones that provide them with nectar, a sugary liquid that serves as
their food. Bee-pollinated flowers have a shape and appearance preferred by bees, even a
particular type of bee. Particular bees and particular flowers are suited to one another because
there has been interaction between them over time that caused coevolution to occur. How is this
advantageous to both the plant and the bee? Observation: Plants and Thelr Pollinators 1. The
description you gave in the live flower observation (section 12.1) can help you decide what type
of pollinator would be attracted to your flower. See also Figure 12.8. - Bees and moths can smell.
But bees like a delicate, sweet smell, while moths prefer a strong smell that can allow them to
find flowers in the dark. Moths are nocturnal and feed at night. If the flower has a smell, which
of these two pollinators might pollinate your flower? - Bees and butterflies generally need a
landing platform. Bees can land on a small petal, but butterflies typically walk around on a
cluster of flowers. - Moths and hummingbirds do not need a landing platform because they hover
(flap their wings to stay in one place). Moths and hummingbirds have a long tongue to reach
nectar at the bottom of the floral tube. Based on this information, which type of pollinator
mentioned so far might pollinate your flower? - Moth-pollinated flowers are typically white;
bees can't see red but can see yellow; butterflies like brightly colored flowers; and hummingbirds
prefer the color red. Which of these pollinators might prefer your flower? 2. Your instructor may
have suggested that you bring other flowers to lab. Examine several available flowers and tell
how each of the following features help decide the pollinator. These features will help you
decide the pollinator for each type of flower. If a flower is the same color as the rest of the plant
(green or brown) and hangs down from the end of a branch, it likely produces pollen that is
windblown. Now complete Table 12.2 . How does each of these flower features help decide the
pollinator? Landing platform Color Smell Shape of flower
Figure 12.8 Pollinators. a. The butterfly-pollinated flower is often a brightly colored composite
containing many individual flowers. The broed exposure provides room for the butterfly to land.
b. A moth-polinated flower is usually llght in color; a moth depends on scent to find the fiower it
prefers in the dark. c. Hummingbird-pollinated flowers are curved back, allowing the bird to
Insert its beak to reach the fich supply of nectar. (4) ODoog Stermun/Geoflies (b) OAndrew
Durritgtan/Alumy Stock Fhcoor (c) CAnthosy Meriecu/Stience Soncte
3. Examine the pod of a string bean or pea plant. How many seeds (beans or peas) are in the pod?
Would it help disperse the seeds of a pea plant if an animal were to eat the peas? Why or why
not? Split .
It might seem as if a pollinator such as a bee goes to all types of f.pdf
1. It might seem as if a pollinator such as a bee goes to all types of flowers, but it doesn't. Bees
visit only certain flowers - the ones that provide them with nectar, a sugary liquid that serves as
their food. Bee-pollinated flowers have a shape and appearance preferred by bees, even a
particular type of bee. Particular bees and particular flowers are suited to one another because
there has been interaction between them over time that caused coevolution to occur. How is this
advantageous to both the plant and the bee? Observation: Plants and Thelr Pollinators 1. The
description you gave in the live flower observation (section 12.1) can help you decide what type
of pollinator would be attracted to your flower. See also Figure 12.8. - Bees and moths can smell.
But bees like a delicate, sweet smell, while moths prefer a strong smell that can allow them to
find flowers in the dark. Moths are nocturnal and feed at night. If the flower has a smell, which
of these two pollinators might pollinate your flower? - Bees and butterflies generally need a
landing platform. Bees can land on a small petal, but butterflies typically walk around on a
cluster of flowers. - Moths and hummingbirds do not need a landing platform because they hover
(flap their wings to stay in one place). Moths and hummingbirds have a long tongue to reach
nectar at the bottom of the floral tube. Based on this information, which type of pollinator
mentioned so far might pollinate your flower? - Moth-pollinated flowers are typically white;
bees can't see red but can see yellow; butterflies like brightly colored flowers; and hummingbirds
prefer the color red. Which of these pollinators might prefer your flower? 2. Your instructor may
have suggested that you bring other flowers to lab. Examine several available flowers and tell
how each of the following features help decide the pollinator. These features will help you
decide the pollinator for each type of flower. If a flower is the same color as the rest of the plant
(green or brown) and hangs down from the end of a branch, it likely produces pollen that is
windblown. Now complete Table 12.2 . How does each of these flower features help decide the
pollinator? Landing platform Color Smell Shape of flower
Figure 12.8 Pollinators. a. The butterfly-pollinated flower is often a brightly colored composite
containing many individual flowers. The broed exposure provides room for the butterfly to land.
b. A moth-polinated flower is usually llght in color; a moth depends on scent to find the fiower it
prefers in the dark. c. Hummingbird-pollinated flowers are curved back, allowing the bird to
Insert its beak to reach the fich supply of nectar. (4) ODoog Stermun/Geoflies (b) OAndrew
Durritgtan/Alumy Stock Fhcoor (c) CAnthosy Meriecu/Stience Soncte
3. Examine the pod of a string bean or pea plant. How many seeds (beans or peas) are in the pod?
Would it help disperse the seeds of a pea plant if an animal were to eat the peas? Why or why
not? Split the pea or bean and look for the embryo. Is this plant a monocot or eudicot plant? How
do you know? Use a pea pod as an example of a fruit in Table 12.3. 4. Examine a sunflower fruit
2. and remove the seed. The outer coat of a sunflower seed is actually eudicot? How can examining
the seed tell you that the sanflower plant is a Except for the apple, all the fruits you have
examined are dry fruits. What does this mean? Add sunflower fruit to Table 12.3. 5. Examine
other available fruits and complete Table 12.3. 12.5 Seeds Pre-Lab 10. What are some
differences between eudicot and monocot seeds and germination?
2. As observed in Figure 12.11, which organ emerges first from a dicot seed-the plumule or the
radicle (i.c., root)? Of what advantage is this to the plant? 3. The hypocotyl is the first part to
emerge from the soil. What is the advantage of the hypocotyl pulling the plumule up out of the
ground instead of pushing it up through the ground? 4. Do cotyledons stay beneath the ground in
eudicots? Corn Kernel 1. Obtain a presoaked corn kernel (monocot). Lay the seed flat, and with a
razor blade or scalpel, carefully slice it in half. A corn kernel is a fruit, and the seed coat is
tightly attached to the pericarp (Fig. 12.12). 2. Identify the cotyledon, plumule, and radicle. In
addition, identify the a. Endosperm: Stored food for the embryo; the nutrients pass into the
cotyledon as the seedling grows. b. Coleoptile: A sheath that covers the emerging leaves. 3. As
observed in Figure 12.12, does the cotyledon of a corn seed, our example of a monocot, stay
beneath the ground?
