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Photosynthesis
Use your journal to answer the following questions.
1. Which type of organisms carry on the process of photosynthesis?
Plants which are producers.
2. In which structure of the plant does photosynthesis occur? The
leaf
3. What kind of energy is needed to start the process of
photosynthesis? Radiant energy
4. What kind of raw materials go into photosynthesis? Carbon
dioxide and water
5. What is the type of energy does photosynthesis change radiant
energy into? Chemical energy
6. What is the name of the sugar produced? glucose
7. What gas does photosynthesis produce? oxygen
8. Do the plants use the sugar they produce? yes
9. This sugar is a (carbohydrate, fat, protein).
10.
What transports water and nutrients from the roots to the
rest of the plant such as the leaves? xylem
11. Do the plants use the gas they produce? no
12.
Which part of the plant is responsible to absorb water and
nutrients into the plants? roots
13.
In which organelle (small part of the cell) does
photosynthesis take place? chloroplasts
14.
What in this organelle traps sunlight? chlorophyll
15.
What color is this pigment? green
16.
What gas is needed by the plant in order for photosynthesis
to occur? Carbon dioxide
17.
In which organelle do gasses enter and leave the cell?
stomata
18.
Is this organelle located in the outer layer called the
epidermis? yes
19.
This organelle is controlled by two guard cells.
20.
The function of guard cells is to open and close the stomata
to allow the passage of gasses and water in and out of the leaf.
21.
Do living organisms such as humans produce this gas that
the plants need for photosynthesis? yes
22.
When this gas (carbon dioxide) and water undergo a
chemical reaction with the help of sunlight, what is produced?
Glucose and oxygen
23.
The simple sugar is called glucose.
24.
The formula for this sugar is C6H12O6.
25.
This sugar is a (raw material, product) of photosynthesis.
26.
Does the plant need this sugar? yes
27.
Do we need this sugar? yes
28.
The gas produced by photosynthesis is oxygen.
29.
Does the plant need this gas? no
30.
Do we need this gas? yes
31.
6H2O + 6CO2
C6H12O6 + 6O2 What does this
chemical equation represent? The process of photosynthesis.
32.
What does this part of the photosynthesis equation
represent? 6H2O six molecules of water
33.
What does this part of the photosynthesis equation
represent? 6CO2 six molecules of carbon dioxide
34.
The arrow (
) in the photosynthesis equation means?
Yields or makes
35.
What is the formula for glucose? C6H12O6
36.
What is the formula for oxygen produced? 6O2
37.
List the raw materials for the photosynthesis equation.
Water and carbon dioxide
38.
List the products of photosynthesis. Glucose and oxygen
39.
What kind of energy is needed to start the process of
photosynthesis? Radiant energy
40.
Photosynthesis is a process that changes radiant energy
into chemical energy.
41.
Draw an illustration of photosynthesis.
Define the following words:
1. Epidermis –outer layer; waxy in plants for conservation of water
2. Stoma –opening through which gases enter and leave a leaf; pores in leaf
located on the lower epidermis of the leaf
3. Guard cells-cells that control the stoma of a leaf regulating how much gas
enters and leaves; these cells surround the stoma
4. Chloroplast-the organelle in the plant cell that contains chlorophyll and
photosynthesis takes place in this organelle
5. Chlorophyll-the green pigment located in the chloroplasts that “trap” the
radiant energy of the sun to start the process photosynthesis
6. Glucose-simple sugar that is made from the chemical reaction of carbon
dioxide, water, and radiant energy. This carbohydrate is made in plants.
Plants need glucose as well as humans.
7. Organelle-smaller part of a cell that has a specific or specialized function
8. Xylem-plant vascular tissue through which water is transported from the
roots to the rest of the plant; woody tissue
9. Phloem –plant tissue that transports glucose from the leaves where it is
stored down to the rest of the plant
Name 6 organelles from your plant diagram and give the function (job) of each.
1. Cell wall-provides support and is made of a carbohydrate called cellulose;
located outside the cell membrane.
2. Nucleus-controls the activities of the cell.
3. Vacuole-largest organelle in plant cell that provides a storage area for water in
the cell.
4. Chloroplast-organelle that contains the pigment chlorophyll to trap the radiant
energy from the sun; photosynthesis takes place in this organelle.
5. Cytoplasm-the jelly like substance that organelles sit in and are “bathed”.
6. Cell membrane-semipermeable membrane that allows things in and out of the
cell.