Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
48 Cards in this Set
- Front
- Back
Steps in Photosynthesis
|
--Sunlight Strikes Leaf;
--Chlorophyll captures light energy --Cells use the energy to produce sugars and oxygen from water and carbon dioxide. |
|
In the process of photosynthesis, plants use the energy in ____________ to make food.
|
Sunlight
|
|
How does grass use energy from the sun.
|
Autotroph; directly
|
|
How does a zebra use energy from the sun?
|
heterotroph; indirectly
|
|
How does a lion use energy from the sun?
|
heterotroph; indirectly
|
|
List two stages in the process of photosynthesis.
|
1. Capturing the sun's energy;
2. Producing sugars. |
|
The green pigment in chloroplasts, called _________, absorbs light energy from the sun.
|
chlorophyll
|
|
Is the following sentence true or false? Besides the energy in sunlight, the cell needs water and carbon dioxide to make sugar.
|
true
|
|
What are stomata?
|
Stomata are small openings on the undersides of the leaves through which carbon dioxide enters the plant.
|
|
What are products of photosynthesis?
|
a. carbon dioxide
b. glucose c. water***** d. oxygen******* |
|
Is the following true or false? Photosynthesis produces the carbon dioxide that most living things need to survive.
|
false
|
|
Write the chemical equation for the process of photosynthesis.
|
6 CO2 + 6 H20------
C6H12)6 = 6 )2 |
|
What word does the arrow in the chemical equation stand for?
|
yields
|
|
List the letter of each raw material of photosynthesis.
|
a. carbon dioxide***
b. glucose c. water**** d. oxygen |
|
List the letter that is true about the products of photosynthesis.
|
a. Plants cells use the sugar from food.******
b. some of the sugar is made into other compounds, such as cellulose.**** c. Some of the sugar is stored in the plant's cells for later use.***** d. Extra sugar molecudes pass out of the plant through the stomata. |
|
Fill in the blanks in the photosynthesis equation
ps |
1. carbon
2. water ----- 3. sugar 4. oxygen |
|
What are the raw materials of photosynthesis?
ps |
Carbon dioxide and water
|
|
Why is sunlight written above the arrow in the equation, rather than on either side of it?
ps |
Because sunlight provides the energy for the reaction but is neither a raw material nor a product of the reaction.
|
|
Where does photosynthesis occur?
ps |
In the chloroplasts of plants and some other organisms, such as algae and some bacteria.
|
|
Fill in the blank:
The process by which a cell captures the energy in sunlight and uses it to make food is called_____________ ps |
photosynthesis
|
|
_____________ are colored chemical compounds that absorb light.
ps |
Pigments
|
|
The main pigment found in the chloroplasts of plants is __________________.
ps |
chlorophyll
|
|
__________________ are small openings on the undersides of leaves through which carbon dioxide enters a plant.
ps |
stomata
|
|
An organism that makes its own food is a(n) ________________.
ps |
autotroph
|
|
A(n) ________________ is an organism that cannot makes its own food.
ps |
heterotroph
|
|
What is respiration?
r |
Respiration is breathing in oxygen by an organism because oxygen is needed by cells.
|
|
What happens during respiration?
r |
Cells break down simple food molecules such as sugar and release the energy they contain.
|
|
Cells store energy in the form of __________________.
r |
carbohydrates
|
|
How do cells "withdraw" energy?
r |
Cells break down carbohydrates to get energy.
|
|
Is the following true or false? Respiration that takes place inside of cells is the same as breathing air in and out of lungs.
|
False
|
|
What are the raw materials of respiration?
|
sugar, oxygen
|
|
What are the products of respiration?
|
carbon dioxide, water, energy
|
|
What is the first stage of respiration.
|
Takes place in the cytoplasm;
Glucose molecules are broken down |
|
What is the second stage of respiration?
|
Takes place in the mitochondria;
oxygen is involved |
|
What takes place in both the first and second stages of respiration.
|
Energy is released
|
|
What is fermentation?
r |
Fermentation is an energy-releasing process that does not require oxyten.
|
|
Is the following true or false?
|
Feermentation releases more energy than respiration. False
|
|
List two types of fermentation and tell were each takes place.
r |
Alcoholic fermentation occurs in yeast.
Lactic-acid fermentation occudr in muscle cells in the body. |
|
What are the raw materials of respiration?
|
glucose
carbon dioxide |
|
What are the products of respiration?
|
oxygen
water energy |
|
Where in the cell doees the first stage of respiration take place?
|
In the cytoplasm
|
|
where in the celll does the second stage of respiration take place?
|
In the mitochondria.
|
|
How does fermentation differ from respiration?
|
Fermentation does not require oxygen, while respiration does.
It produces less energy than respiration. |
|
Which type of fermentation occurs in yeast? (remember Monkey bread)
r |
Alcoholic fermentation
|
|
Which type of fermentation sometimes occurs in human muscle cells?
|
lactic-acid feermentation
|
|
True or false:
The process by which cells "withdraw" energy from glucose is called "photosynthesis." |
False.
It is called respiration |
|
True or false
"Respiration" provides energy for cells without using oxygen. |
False.
Fermentation |
|
What are the steps in photosynthesis?
|
--Sunlight strikes a leaf;
--Chlorophyll captures light energy; --Cells use energy to produce sugars and oxygen from water and carbon dioxide. |