BIO 1033 Lecture Notes - Lab Report, Spinach, Light-Independent Reactions

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geraduarte1

15 Nov 2022

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UTSA

Department

Biology

Course

BIO 1033

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Lab report 1: analyzing the effect of five distinct light colors (red, orange, green, blue, and violet) towards the growth of three different plants (spinach, radishes, and lettuce). All plants need light-waves for photosynthesis, the process in where a plant converts light- waves, oxygen, and water into carbohydrates (energy). To then complete the second step of photosynthesis, dark reaction, this step of photosynthesis utilizes the energy from atp and. It is also important to know that chlorophyll is located in a plant"s chloroplasts, which are tiny structures in a plant"s cells. Plants need this energy to grow, bloom and make seeds. The connection between light-weight and plant growth is often demonstrated by exposing leaves to numerous colors of light. In this experiment, it will be utilized five distinct colors: red, orange, green, blue, and violet. Violet light has a high amount of energy which is beneficial for plants.

Related Questions

Question 1 The membrane structures inside the chloroplast are called the ______, while the fluid surrounding the stacks of membrane is called the ______.
a. stroma; thylakoid
b. thylakoid; cytosol
c. thylakoid; stroma
d. thylakoid; matrix
e. matrix; thylakoid

Question 2 What is considered the ultimate source of energy for living things on Earth?
a. the sun
b. electrons
c. green plants
d. oxygen
e. ATP

Question 3 Why do most plant leaves appear green?
a. They contain a lot of starch which has a green color.
b. They have chloroplasts which absorb green light for photosynthesis.
c. During the light reaction phase carbon dioxide is converted to oxygen which emits green light.
d. They have chloroplasts which absorb all colors of light except for green, which is reflected.
e. During the dark reaction phase water is converted to oxygen which emits green light.

Question 4 Plants perform only photosynthesis, not respiration. True False

Question 5 What is the primary purpose of the light reactions of photosynthesis?
a. to create oxygen gas
b. to produce glucose
c. to convert solar energy to chemical energy (in the form of ATP and NADPH) to power the dark reactions
d. to remove carbon dioxide gas from the atmosphere
e. to create water

Question 6 The light dependent reactions occur in the:
a. mitochondrial membrane.
b. mitochondrial matrix.
c. stroma.
d. thylakoid membrane.
e. cytosol.

Question 7 The energy to run the dark reactions of photosynthesis is produced _________.
a. by the CO2 initially used in the dark reactions.
b. during glycolysis
c. during the light reaction phase
d. during the Krebs cycle
e. during anaerobic respiration

Question 8 Which of the following substances could be totally eliminated and not interfere with the process of photosynthesis?
a. O2
b. H2O
c. light
d. CO2

Question 9 What product(s) do plants produce during photosynthesis that is/are used by humans and other animals?
a. carbon dioxide
b. carbon dioxide and water
c. glucose and oxygen
d. glucose
e. oxygen

Question 10 Only plants can carry out photosynthesis. True False

Question 11 During the light reactions of photosynthesis, ...
a. oxygen is produced from H2O.
b. glycolysis occurs.
c. the Krebs cycle occurs.
d. CO2 is combined into glucose.
e. ATP is broken down to ADP + P

Question 12 The reactants of photosynthesis are:
a. sugar.
b. sugar and water.
c. O2 and CO2
d. O2 and sugar.
e. CO2 and water.

Question 13 During the dark reaction phase of photosynthesis in plants...
a. ATP is created.
b. H+ ions are moved into the stroma from the matrix.
c. molecules of CO2 are combined into sugar.
d. H2O is split into oxygen and H+.
e. solar energy is converted to chemical energy.

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1. What are the products of the light reactions ofphotosynthesis?

2. In which organelle of a plant does Krebs cycle occur?

3. Chlorophyll reflects which color of light?

4. The light-independent reactions of photosynthesis take placewhere?

5. The light dependent reactions of photosynthesis take placewhere?

6. Why do chlorophyll-containing plants appear green?

7. Chlorophyll is a pigment that absorbs what kind of light?

8. What is the purpose of fermentation?

9. Identify the organelle responsible for trapping energy fromlight?

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Photosynthesis Lab Report

Plant Structure and Function

Through the process called __________ plants convert lightenergy into

__________ energy. Record your answerbelow.

In which structure of the plant does photosynthesis occur?

What is the difference between xylem and phloem?

Based on lab, Exercise 1, what is the name and function of thestructure labeled with the letter âHâ?

Chloroplast

Based on Lab, Exercise 2, draw and label each part of thechloroplast. Sign, date and prepare an image of your drawing andinclude it with this lab report.

What part of the process of photosynthesis occurs in thethylakoid compartment?

What is the name and function of the structure labeled with theletter âEâ in Exercise 2?

Photosynthetic Products

What are the three products of photosynthesis?

What happens to the glucose that is not metabolizedimmediately?

In the test for starch, which tube demonstrated a positive testfor starch? How do you know?

Based on Lab, Exercise 3 explain why part of the leaf was amberin color.

Light Absorption

What pigment is used by plants to absorb light?

In the video demonstration in Exercise 4 what happens to thelight spectrum when a green filter is placed in front of the lightsource?

In step 3 of Exercise 4, which color was not absorbed by thespinach pigments?

Photosynthetic Pigments

What process is used in Exercise 5 to separate the plantpigments?

Look at the chromatogram results in Exercise 5. What color isreflected by chlorophyll a?

Which pigment reflected an orange color?

VI. Effect of Light and Temperature onPhotosynthesis

What was the conclusion of Blackmanâs first experiment on theeffect of light on photosynthesis?

In his second experiment, what effect did increasingtemperature have on the rate of photosynthesis?

Record the data from Exercise 6 below.

Lamp Distance	Temperature	Ave Bubble/min
75 cm
50 cm
25 cm

In the experiment in Exercise 6, what conclusion can be drawnabout the effect of light and temperature on rate ofphotosynthesis?

Summary Questions

Why do heterotrophs depend on autotrophs?

Name two reactants necessary for photosynthesis to occur.

How would the process of photosynthesis be affected if a planthad no stomata?

What tool is used to separate white light into differentwavelengths of color?

Explain why we see the color green on the leaves ofplants.

What color is absorbed the least by the petals on asunflower?

Photosynthesis consists of two phases. Which phase would beleast affected by living in an area where there are shorter daysand long periods of darkness?

How could air pollution affect food production and the priceyou pay for food at the supermarket?

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BIO 1033 Lecture Notes - Lab Report, Spinach, Light-Independent Reactions

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