bell work: diffusion lab questions 1.the plastic bag is semipermeable to which substance? 2.why did...
TRANSCRIPT
Bell Work:
Diffusion Lab Questions1. The plastic bag is semipermeable to which
substance?2. Why did the iodine enter the bag?3. Why didn’t the starch enter the beaker?4. How is the plastic bag like the cell membrane?5. What is the definition of the word “diffusion”?
Cell Energy Make a list of the reasons why a cell might need
energy.
Photosynthesis & Cellular RespirationChapter 3, section 2Chapter 7, section 1Continuing with the
movement of particles into and out of cells
What is photosynthesis?
____________ is the process by which plants make their own food.
The word photosynthesis means – combine with _______ or _______ by light.
Photosynthesis
light made
Where does photosynthesis occur?Photosynthesis occurs in the
________ of a plant. More specifically- in the ___________. leaves
chloroplasts
Plant Cell
Chloroplast are
organelles in a plant
cell.
Inside of the chloroplast
_____________ is found in the chloroplasts.
Chlorophyll is the ___________ that makes the plant _________.
Chlorophyll __________ light energy.
green
pigment
Chlorophyll
absorbs
Photosynthesis needs and products:Plants use the ______ energy captured
by chlorophyll to change ______ ______ and _______ to food.
The food is in the form of a sugar called __________ (C6H12O6).
Photosynthesis also produces ________.
lightcarbon dioxide
water
glucose
oxygen
How does photosynthesis help us?
During the process of photosynthesis, oxygen is produced. We use this oxygen to breathe. We also receive energy from the plant when we eat plants.
Reactants vs. Products
Reactants are what you need to make something- The reactants for photosynthesis are Sunlight, Carbon Dioxide and Water.
Products are what you make- The products for photosynthesis are Glucose (sugar) and Oxygen.
EQUATIONEQUATION FORFOR PHOTOSYNTHESISPHOTOSYNTHESIS
Photosynthesis Video
Photosynthesis and Cellular RespirationCellular respiration is a chemical reaction
that occurs in cells. During cellular respiration, cells use oxygen
to produce energy from food.Food (glucose) is broken down into CO and
H O, and energy is released.The released energy is used to maintain body
temperature in animals. It is also used to form ATP, which supplies energy that fuels cell activities.
²²
EQUATION FOR EQUATION FOR RESPIRATIONRESPIRATION
The Connection Between Photosynthesis and Respiration
Reactants vs. Products
Reactants are what you need to make something- The reactants for cellular respiration are Glucose (sugar) and Oxygen.
Products are what you make- The products for cellular respiration are Carbon Dioxide, Water and ATP.
Alternative to Cellular RespirationFermentation produces ATP without using
oxygen. It can occur in muscles when they are unable to get oxygen for respiration.
Fermentation also produces lactic acid. This acid can cause muscle fatigue.
Scientist Notebook DrawingsDraw the Carbon Dioxide/Oxygen Cycle pg. 84:
Draw a plant to represent the plant cellDraw an animal to represent the animal cellDraw arrows with chemical formulasDraw the sun with arrowDraw ATP with arrow Include Photosynthesis and Respiration
explanations
Draw, color, and label figure 2 on pg. 185.