Question

A student is completing an experiment comparing plants in two areas. Both areas have the same type of plants with equal sunlight and equal available water. Area 1 has a high amount of carbon dioxide in the atmosphere, and area 2 has a low amount of carbon dioxide in the atmosphere. 2. How does the rate of photosynthesis in area 1 compare to the rate of photosynthesis in area 2?



The rate of photosynthesis decreases with an increase in carbon dioxide; therefore, area 1 will have a lower rate of photosynthesis compared to area 2.

The rate of photosynthesis increases with an increase in carbon dioxide; therefore, area 1 will have a higher rate of photosynthesis compared to area 2.

The rate of photosynthesis increases with a decrease in carbon dioxide; therefore, area 1 will have a lower rate of photosynthesis compared to area 2.

The rate of photosynthesis increases with a decrease in carbon dioxide; therefore, area 1 will have a lower rate of photosynthesis compared to area 2.



The amount of carbon dioxide in the atmosphere has no affect on the rate of photosynthesis; therefore, area 1 and area 2 will have the same rate of photosynthesis.

Answer 1

Plants perform photosynthesis in order to rearrange atoms from carbon dioxide and water to form glucose and oxygen gas. Because the glucose can be used as a food source for the plants, plants are known as autotrophs. The reaction that occurs in photosynthesis is represented by this equation: 6CO2 + 6H2O →C6H12O6 + 6O2. Photosynthesis occurs in specialized organelles, called chloroplasts, in the cells of green plants. Here is the same passage, but it has the sentences numbered this time. 1Plants perform photosynthesis in order to rearrange atoms from carbon dioxide and water to form glucose and oxygen gas. 2Because the glucose can be used as a food source for the plants, plants are known as autotrophs. 3The reaction that occurs in photosynthesis is represented by this equation: 6CO2 + 6H2O →C6H12O6 + 6O2. 4Photosynthesis occurs in specialized organelles, called chloroplasts, in the cells of green plants. 3. Choose the response from each drop down box to correctly complete sentence.




Sentences ____ tell us that plant cells take in ______ and ______, which are the _____ used during photosynthesis. Sentence ______ tells us that plants are _____, which means they make their own food.​​​​​​​

Answer 2

Plants perform photosynthesis in order to rearrange atoms from carbon dioxide and water to form glucose and oxygen gas. Because the glucose can be used as a food source for the plants, plants are known as autotrophs. The reaction that occurs in photosynthesis is represented by this equation: 6CO2 + 6H2O →C6H12O6 + 6O2. Photosynthesis occurs in specialized organelles, called chloroplasts, in the cells of green plants. Here is the same passage, but it has the sentences numbered this time. 1Plants perform photosynthesis in order to rearrange atoms from carbon dioxide and water to form glucose and oxygen gas. 2Because the glucose can be used as a food source for the plants, plants are known as autotrophs. 3The reaction that occurs in photosynthesis is represented by this equation: 6CO2 + 6H2O →C6H12O6 + 6O2. 4Photosynthesis occurs in specialized organelles, called chloroplasts, in the cells of green plants. 3. Choose the response from each drop down box to correctly complete sentence.

Sentences ____ and ______ tell us that plant cells take in ______ and ______, which are the _____ used during photosynthesis. Sentence ______ tells us that plants are _____, which means they make their own food.​​​​​​​

Answer 3

The correct statement is:

**The rate of photosynthesis increases with an increase in carbon dioxide; therefore, area 1 will have a higher rate of photosynthesis compared to area 2.**

In photosynthesis, carbon dioxide is one of the key reactants, and an increase in the concentration of carbon dioxide generally enhances the rate of photosynthesis, provided other conditions (like light intensity and water availability) are adequate. Since area 1 has a high amount of carbon dioxide, plants in this area are likely to photosynthesize at a higher rate than those in area 2, where the carbon dioxide levels are low.

Answer 4

Here is a completed version of the sentences based on the provided passage:

Sentences **1** tell us that plant cells take in **carbon dioxide (CO2)** and **water (H2O)**, which are the **reactants** used during photosynthesis. Sentence **2** tells us that plants are **autotrophs**, which means they make their own food.

Answer 5

Here is the completed version of the sentences based on the provided passage:

Sentences **1** and **3** tell us that plant cells take in **carbon dioxide (CO2)** and **water (H2O)**, which are the **reactants** used during photosynthesis. Sentence **2** tells us that plants are **autotrophs**, which means they make their own food.