http://westlane.dsbn.org/Science/simon/SBI3C1/1.11.pdf
Assignment #2: Explore an Issue: Functional Food (textbook 1.8)
http://westlane.dsbn.org/Science/simon/SBI3C1/1.8FunctionalFoods.pdf
Assignment #3: Cellular Respiration
http://westlane.dsbn.org/Science/simon/SBI3C1/1.18SectionQuestions.pdf
Assignment #4: Mendel's Peas
Assignment #5: Bikini Bottom Genetics Worksheet
Assignment #6: Common Cold vs. Flu
Assignment #7: Circulatory Disorders & Technology
Read section 3.10 and answer questions #1-9, 11
Assignment #8: The Respiratory System
Read section 3.15 and answer these questions:
1. Explain
how the vocal cords work.
2. What is an endotherm?
3. What is laryngitis?
4. What
are goblet cells and where are they found?
5. a) Why are the alveoli covered with capillaries?
b) Draw a fully
labelled diagram of a functioning alveolus, illustrating blood flow and gas
exchange.
c) Trace the path of an oxygen molecule
in the air from the time it enters the body until the time it enters the
bloodstream. Name each structure it
passes or enters in the correct order.
6. How does the larynx differ from males to
females?
s Assignment #9: Digestive System Disorders
Task:
Identify the inflicted area of the Digestive System for each of the disorders
listed in Table 1 on page 190.
Assignment #10:
d Read section 4.1 and answer questions #1-4
Assignment #11:
Read section 4.5 Vascular Plant Structure and answer questions #1-7
Assignment #12:
Read section 4.8 Roots & Stems and answer questions #1-5, 7bc, 8, 9)
Assignment #13:
Read section 4.10 Leaves and answer questions #1-4, 6-8
IGNORE:...
Assignment #8: Vascular Plant Structure
Answer the following questions on page 289:
#1-9
Assignment #9:
Comparing Monocots and Dicots
Both monocot and dicot seeds develop in similar ways and have the same parts. There are a few minor differences: monocots start out with one seed leaf, while dicots have two. The technical word for seed leaf is cotyledon: you can find it on the coloring sheet; it is the first leaf to emerge from a developing seed. Color all the cotyledons (A) on the seeds dark green. As a seed, both monocots and dicots are covered by a seed coat. Color the seed coat (B) yellow.
The seed consists of the outside seed coat and a large area called the endosperm which functions as a source of reserve materials and food for the developing embryo. As germination occurs, the endosperm will be broken down and used by the plant. Color the endosperm blue (C).
Germination occurs when the seed begins to sprout, usually in the spring and under appropriate conditions the radicle, the part of the seed that will become the root, begins to elongate and grow downward. Color the root brown (D). Meanwhile, the coleoptile begins to grow upward. The coleoptile is a sheath that encloses the shoot of the embryo. The primary function of the coleoptile is to provide protection to the developing shoot as it is passing through the soil. Color the coleoptile orange (E). Extending out from the coleoptile is the shoot. Color the shoot purple (F).
Eventually adult leaves grow on the plant. Color these leaves light green. (G)
Adult Monocots and Dicots
Angiosperms are divided into two classes, the monocots and the dicots. The majority of flowering plants are dicots. Dicots include maples, oaks, and magnolias. Monocots are grasses, wheat, corn, and rice. Most of our food supply comes from monocots. The diagram compares the differences between the two.
First of all look at the roots. The root of a monocot is called a fibrous root and the root of a dicot is a taproot. Notice how taproots have one main part - called the primary root. In a taproot the primary root grows very large and small roots spread out from it. Fibrous roots, on the other hand, do not have very large primary roots, and many small roots develop and remain near the surface. Color the taproot dark brown and the fibrous root light brown.
Monocots and dicots also differ in their leaf structure. Adult monocots usually have parallel venation, whereas dicots have net-like venation. For monocots and dicots, color the leaves green and outline the veins in a darker green. The flowers of monocots and dicots differ in the number of petals they have. Monocots tend to have flower parts that occur in 3's ( 3, 6, 9, 12…). Dicot flowers usually have 4 to 5 petals. Color the monocot flower purple, and the dicot flower pink (make sure all petals are colored). Stems hold the flowers up and attach the leaves, color the stems blue.
Monocot and dicots also differ in the way their vascular systems are arranged. In monocots, the vascular bundles are scattered throughout the stem. In dicots, the vascular bundles are arranged in a ring. Color the vascular bundles in both types of plants purple (V), color the stems blue.
Questions:
1. Give two examples of plants that are monocots. _____________________________________________
2. Give two examples of plants that are dicots. _________________________________________________
3. What is a cotyledon? _______________________________________________________________________
4. What is the radicle? ________________________________________________________________
5. What is the coleoptile? ______________________________________________________________
6. What is the function of the endosperm? _____________________________________________________
2. Give two examples of plants that are dicots. _________________________________________________
3. What is a cotyledon? _______________________________________________________________________
4. What is the radicle? ________________________________________________________________
5. What is the coleoptile? ______________________________________________________________
6. What is the function of the endosperm? _____________________________________________________
7. Fill out the table below.
Number of Seed Leaves
|
Type of Leaf Venation
|
Number of Flower Parts
|
Type of Roots
|
Example
| |
Monocot
| |||||
Dicot
|
8. An unknown plant is brought to you and your job is to determine whether it is a monocot or a dicot. You observe that the plant has 6 petals and its leaves have parallel veins. Is it a monocot or a dicot?
Assignment #10:
LEAF ANATOMY
The leaf is the primary photosynthetic organ of the plant. It consists of a flattened portion, called the blade, that is attached to the plant by a structure called the petiole. Sometimes leaves are divided into two or more sections called leaflets. Leaves with a single undivided blade are called simple, those with two or more leaflets are called compound.
The outer surface of the leaf has a thin waxy covering called the cuticle (A), this layer's primary function is to prevent water loss within the leaf. (Plants that leave entirely within water do not have a cuticle). Directly underneath the cuticle is a layer of cells called the epidermis (B). The vascular tissue, xylem and phloem are found within the veins of the leaf. Veins are actually extensions that run from to tips of the roots all the way up to the edges of the leaves. The outer layer of the vein is made of cells called bundle sheath cells (E), and they create a circle around the xylem and the phloem. On the picture, xylem is the upper layer of cells (G) and is shaded a little lighter than the lower layer of cells - phloem (H). Recall that xylem transports water and phloem transports sugar (food).
Within the leaf, there is a layer of cells called the mesophyll. The word mesophyll is greek and means "middle" (meso) "leaf" (phyllon). Mesophyll can then be divided into two layers, the palisade layer (D) and the spongy layer (F). Palisade cells are more column-like, and lie just under the epidermis, the spongy cells are more loosely packed and lie between the palisade layer and the lower epidermis. The air spaces between the spongy cells allow for gas exchange. Mesophyll cells (both palisade and spongy) are packed with chloroplasts, and this is where photosynthesis actually occurs.
Epidermis also lines the lower area of the leaf (as does the cuticle). The leaf also has tiny holes within the epidermis called stomata. Specialized cells, called guard cells (C) surround the stomata and are shaped like two cupped hands. Changes within water pressure cause the stoma (singular of stomata) to open or close. If the guard cells are full of water, they swell up and bend away from each other which opens the stoma. During dry times, the guard cells close.
Color the structures underlined above. Make sure that the entire picture is colored and that the color matches the words. For simplicity only part of the picture is labeled.
Color the structures underlined above. Make sure that the entire picture is colored and that the color matches the words. For simplicity only part of the picture is labeled.
Questions:
1. What two tissues are found within a vein?
2. What does the word "mesophyll" mean?
3. What two layers of the plant contain chloroplasts?
4. The outermost layer of cells: _________________________
5. The waxy covering of the leaf.: _______________________
6. These cells function to open and close stomata. _____________________
7. Outer layer of the vein: ________________________
8. Column like cells that lie just under the epidermis. ___________________
9. Openings that allow for gas exchange. _________________________
10. The stalk that connects the leaf to the stem. ______________________
Cuticle (light blue)
Epidermis (yellow)
Guard cells (pink)
Palisade Mesophyll (dark green)
Phloem (purple)
Xylem (orange)
Spongy Mesophyll (light green)
Bundle Sheath (dark blue)
Epidermis (yellow)
Guard cells (pink)
Palisade Mesophyll (dark green)
Phloem (purple)
Xylem (orange)
Spongy Mesophyll (light green)
Bundle Sheath (dark blue)
