LEARNING TARGETS:
 
1. (SYSA) I can identify a change in a photosynthesis system as
positive or negative feedback.
2. (INQB) I can describe (draw/write) a plan for a controlled
experiment.
3. (INQF) I can evaluate the reliability and validity of an experiment
and explain ways to increase the reliability and validity.
4. (LS1A) I can explain the role of photosynthesis in plants which is to
produce their own food (sugars/starch).
5. (LS1A) I can explain the importance of photosynthesis for both
plants and animals.
6. (LS1A) I’ve memorized and can explain the balanced chemical
equation for photosynthesis, the inputs and the outputs. I can show my
understanding of how plants rearrange atoms during photosynthesis in
words and in chemical formulas.
7. I can draw, label, and describe the functions of plant structures
within the leaf relating to photosynthesis (dorsal, ventral and cross
section).
8. (LS1C) I can describe the function of the chloroplast organelle.
9. (LS1F) I can describe that plant cells can transfer chemical energy
(sugar) to special molecules such as ATP and carbohydrates using
enzymes. These molecules are used by the plant cell.
10. (LS2A) I can describe the cycle (complete circle) of carbon
through an ecosystem.
Date:
Date:
PHOTOSYNTHESIS VOCABULARY:
stomata
carbohydrates
oxidation
chloroplast
dark reaction
ATP
glucose
starch
light reaction
reduction
phloem
guard cells
NADPH/NADP+
xylem
epidermis
chlorophyll
photosynthesis
mineral nutrient
experimental setup
experimental
control set-up
negative feedback
positive feedback
organelle
reliability
validity
Tiny holes in the leaf’s surface, where CO2 can enter.
Major source of energy for the body
Lose electrons / hydrogen (H+)
Organelle in a plant cell that absorbs energy from the sun
The second stage of photosynthesis during which CO2, NADPH & ATP are used to
produce glucose.
High-energy molecule containing 3 phosphate groups, which is used to store energy in
cells
Sugar molecule used as chemical energy for plants and animals. Product of
photosynthesis. A simple sugar is called a monosaccharide.
Many glucose molecules linked together. Excess sugar stored in plants as this
compound. A complex sugar is called a polysaccharide.
The first stage of photosynthesis during which water and sunlight produce oxygen and
ATP.
Gain electrons / hydrogen (H+)
Tubes that transport sugars and other molecules throughout the plant
Two cells which control the opening and closing of the stomata
A molecule which acts as an energy carrier in photosynthesis (reduced/oxidized)
Tubes that transport water and dissolved material from the soil up to the leaves
Thickened layer of cells which protects a leaf
Group of molecules that absorb energy from the sun. These pigments make plants
green.
Process in which plants use light, CO2, and water for energy and food.
matter plants get from the soil (N, P, K)
Part of a controlled experiment which includes the manipulated variable
Part of a controlled experiment which is used as the comparison for the experimental
set-up
A mechanism which stabilizes a system usually referred to as a feedback loop in
biology.
A mechanism which destabilizes a system usually referred to as a feedback loop in
biology.
tiny organs of a cell
repeating an investigation gives the same results
The extent to which an investigation measures what it is suppose to measure,
correctness of an investigation
DISCUSSION QUESTIONS: Due Friday, January 6th
1. Daily section of your notebook: Draw and trace the path of the reactants (inputs) and products
(outputs) of photosynthesis through a plant (be specific). Include the balanced chemical equation for
photosynthesis.
2. Discussion question with family member: Write a paragraph in the daily section of your notebook
summarizing this discussion. Have your parent sign the paragraph. What is your favorite
plant/flower? What does this plant represent or remind you of in your life?