The Biology Pretest Quiz
So, you think you know a little bit about life from a scientific standpoint. Well, we’re here today to see if you can put your money where your mouth is and prove it! Do you know about animals, plants and microorganisms, and what makes each of them keep on ticking? Take the quiz, and we’ll find out all that and more together! Good luck!
Questions and Answers
- 1.
What are the reactants of the photosynthesis reaction
- A.
Chlorophyll and light
- B.
Carbon dioxide and water
- C.
Carbohydrates and oxygen
- D.
High-energy electrons and air
Correct Answer
B. Carbon dioxide and waterExplanation
inputsRate this question:
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- 2.
What are the final products of the photosynthesis reaction
- A.
Chlorophyll and light
- B.
Carbon dioxide and water
- C.
Carbohydrates (sugars) and oxygen
- D.
High-energy electrons and air
Correct Answer
C. Carbohydrates (sugars) and oxygenExplanation
outputsRate this question:
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- 3.
Autotrophs do not need to eat food because they make their own food.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Autotrophs, such as plants, are able to produce their own food through the process of photosynthesis. They have specialized structures, like chloroplasts, that enable them to convert sunlight, water, and carbon dioxide into glucose and oxygen. This ability to synthesize their own food eliminates the need for autotrophs to consume other organisms for sustenance. Therefore, the statement that autotrophs do not need to eat food because they make their own food is true.Rate this question:
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- 4.
Plants are heterotrophs
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
autotrophsRate this question:
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- 5.
Chlorophyll is important in
- A.
Formation of carbon dioxide
- B.
Reactions of the Calvin cycle
- C.
Formation of ATP
- D.
Absorption of light energy
Correct Answer
D. Absorption of light energyExplanation
it is a pigment that absorbs sunlight energyRate this question:
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- 6.
Plants are ...
- A.
Eukaryotes
- B.
Prokaryotes
- C.
Neither
Correct Answer
A. EukaryotesExplanation
Plants are eukaryotes because they have cells with a nucleus and other membrane-bound organelles. This means that their genetic material is enclosed within a membrane, allowing for more complex cellular processes. Prokaryotes, on the other hand, do not have a nucleus or membrane-bound organelles. Therefore, plants cannot be prokaryotes. Additionally, the term "neither" does not provide any information and is not a valid answer in this context.Rate this question:
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- 7.
What does the light do to chlorophyll
- A.
Energy from the light activates electrons
- B.
Energy from the light is directly converted to sugar
- C.
Light reflects off of chlorophyll
- D.
Energy from the light activated protons creating a positive charge
Correct Answer
A. Energy from the light activates electronsExplanation
When light interacts with chlorophyll, it transfers energy to the chlorophyll molecules. This energy is then used to activate electrons within the chlorophyll molecule, causing them to become energized. These energized electrons play a crucial role in the process of photosynthesis, where they are passed along an electron transport chain and eventually used to produce ATP (a form of energy) and NADPH (a molecule used in the synthesis of sugars). Therefore, the correct answer is that energy from the light activates electrons in chlorophyll.Rate this question:
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- 8.
Which is an example of an electron carrier?
- A.
NADP
- B.
ATP
- C.
Sugar
- D.
Chlorophyll
Correct Answer
A. NADPExplanation
NADP is an example of an electron carrier because it plays a crucial role in photosynthesis. It accepts and carries high-energy electrons produced during the light-dependent reactions of photosynthesis. NADP acts as a shuttle, transferring these electrons to the Calvin cycle, where they are used to convert carbon dioxide into glucose. This electron transfer is essential for the production of ATP, the energy currency of cells, and the synthesis of organic molecules. Therefore, NADP serves as a key electron carrier in the process of photosynthesis.Rate this question:
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- 9.
Release of energy happens when
- A.
ATP to ADP
- B.
ADP to ATP
- C.
AMP to ADP
- D.
AZP to ADP
Correct Answer
A. ATP to ADPExplanation
When ATP (adenosine triphosphate) is converted to ADP (adenosine diphosphate), energy is released. This is because ATP is a high-energy molecule that stores energy in its phosphate bonds. When one phosphate group is removed from ATP, it becomes ADP, and the energy stored in the phosphate bond is released. This energy can be used by cells for various processes such as muscle contraction, active transport, and synthesis of molecules.Rate this question:
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- 10.
What color is chlorophyll
- A.
Green
- B.
Red
- C.
Blue
- D.
White
Correct Answer
A. GreenExplanation
Chlorophyll is the pigment responsible for the green color in plants. It plays a crucial role in photosynthesis, the process by which plants convert sunlight into energy. Chlorophyll absorbs light in the red and blue regions of the electromagnetic spectrum, while reflecting green light, which is why plants appear green to our eyes. Therefore, the correct answer is green.Rate this question:
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- 11.
Cells store a large amount of ATP, enough to last for many days
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
ATP is the store of energy, but it is continuously being made, that's why we are constantly having to eat...Rate this question:
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- 12.
An analogy for the ADP-ATP energy system is that of a rechargeable battery. Which is these is the "empty battery"?
- A.
ADP
- B.
ATP
Correct Answer
A. ADPExplanation
ADP is the "empty battery" in the analogy for the ADP-ATP energy system. ADP stands for adenosine diphosphate, and it is the molecule that is formed when ATP (adenosine triphosphate) loses one of its phosphate groups, resulting in a lower energy state. This can be compared to an empty battery that needs to be recharged in order to regain its energy. Therefore, ADP is the correct answer as it represents the "empty battery" in the ADP-ATP energy system analogy.Rate this question:
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- 13.
All of these are located inside the chloroplast except
- A.
Stroma
- B.
Thylakoids
- C.
Chlorophyll
- D.
Golgi
Correct Answer
D. GolgiExplanation
The golgi apparatus is not located inside the chloroplast. The stroma, thylakoids, and chlorophyll are all components that are found within the chloroplast. The stroma is the fluid-filled space where the Calvin cycle takes place, while the thylakoids are membrane-bound compartments where the light-dependent reactions occur. Chlorophyll is the pigment responsible for capturing light energy. However, the golgi apparatus is an organelle found in the cytoplasm of the cell and is involved in the processing and packaging of proteins.Rate this question:
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- 14.
What is #4 in the picture
- A.
Thykaloid
- B.
Stroma
- C.
Chlorophyll
- D.
Chloroplast
Correct Answer
A. ThykaloidExplanation
The correct answer is "thylakoid" because it is a structure found inside chloroplasts, which are responsible for photosynthesis in plants. Thylakoids are membrane-bound compartments where the light-dependent reactions of photosynthesis occur. They contain chlorophyll, which is responsible for capturing light energy. The other options, stroma and chlorophyll, are components found within the chloroplast, but they do not specifically refer to the structure labeled as #4 in the picture.Rate this question:
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- 15.
What is #5 in the picture
- A.
Stroma
- B.
Chlorophyll
- C.
Chloroplast
- D.
Thykaloid
Correct Answer
A. StromaExplanation
The correct answer is stroma. In a chloroplast, the stroma is the fluid-filled space that surrounds the thylakoid membranes. It is where the second stage of photosynthesis, known as the Calvin cycle, takes place. The stroma contains enzymes and other molecules necessary for the synthesis of glucose from carbon dioxide. The thylakoid membranes, on the other hand, contain chlorophyll and other pigments that capture light energy for the first stage of photosynthesis. While both the stroma and thylakoid are important components of a chloroplast, the stroma is specifically referred to as #5 in the picture.Rate this question:
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- 16.
What is #1 in the picture
- A.
Outer membrane
- B.
Chlorophyll
- C.
Inner membrane
- D.
Thykaloid
Correct Answer
A. Outer membraneExplanation
The correct answer is outer membrane. In the picture, there is a structure that surrounds the other components and acts as a protective barrier. This structure is known as the outer membrane. It is responsible for controlling the movement of substances in and out of the cell and providing support and protection to the cell's internal components.Rate this question:
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- 17.
What is #2 in the picture
- A.
Outer membrane
- B.
Chlorophyll
- C.
Inner membrane
- D.
Thykaloid
Correct Answer
C. Inner membraneExplanation
The correct answer is inner membrane. In the given picture, there are multiple structures visible, and the one labeled as #2 corresponds to the inner membrane. The inner membrane is a component of various cellular structures, such as mitochondria and chloroplasts. It serves as a barrier, separating the internal contents from the external environment and playing a crucial role in regulating the transport of molecules in and out of the organelle.Rate this question:
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- 18.
What is #3 in the picture (the stack)
- A.
Stroma
- B.
Grana
- C.
Inner membrane
- D.
Thykaloid
Correct Answer
B. GranaExplanation
In the given options, grana is the most suitable answer for the question "What is #3 in the picture (the stack)". Grana refers to the stacks of thylakoids found in the chloroplasts of plant cells. These stacks are responsible for the absorption of light energy during photosynthesis. Therefore, grana is the correct answer as it accurately identifies the structure indicated by the number 3 in the picture.Rate this question:
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- 19.
In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and converted into stored chemical energy, in the form of
- A.
NADPH and ATP
- B.
Sugar and oxygen
- C.
ADP and chloroplast
- D.
Carbon dioxide and sugar
Correct Answer
A. NADPH and ATPExplanation
This is the first part of photosynthesisRate this question:
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- 20.
In the light-independent reactions or Calvin cycle, the energized electrons from the light-dependent reactions provide the energy to
- A.
Make sugar
- B.
Make ATP
- C.
Make ADP
- D.
Make NADPH
Correct Answer
A. Make sugarExplanation
This is the second part of photosynthesisRate this question:
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- 21.
Photosynthesis happens inside the chloroplast in 2 separate steps. One depends on light and the other does not. Which is the correct order of these steps
- A.
Light dependent part followed by Calvin cycle
- B.
Calvin cycle then light dependent part
- C.
Both steps happen simultaneously
Correct Answer
A. Light dependent part followed by Calvin cycleExplanation
The correct order of the steps in photosynthesis is the light dependent part followed by the Calvin cycle. During the light dependent part, light energy is absorbed by chlorophyll in the chloroplasts, which then converts that energy into chemical energy in the form of ATP and NADPH. These energy-rich molecules are then used in the Calvin cycle, which takes place in the stroma of the chloroplast. In the Calvin cycle, carbon dioxide is fixed and converted into glucose through a series of chemical reactions. Therefore, the light dependent part must occur before the Calvin cycle in order to provide the necessary energy and reducing power for the synthesis of glucose.Rate this question:
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- 22.
In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and ATP is produced. ATP is then used in the Calvin Cycle to make sugars. How is the ATP made?
- A.
Electron transport chain
- B.
Krebs cycle
- C.
Glycolysis
- D.
Mitochondrial fission
Correct Answer
A. Electron transport chainExplanation
most of the ATP made in a similar way as in animal cellsRate this question:
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- 23.
Which of these is similar for both photosynthesis in plants and cellular respiration in non-plants?
- A.
Electron transport chain
- B.
Krebs cycle
- C.
Calvin Cycle
- D.
Glycolysis
Correct Answer
A. Electron transport chainExplanation
The electron transport chain is similar for both photosynthesis in plants and cellular respiration in non-plants. In photosynthesis, the electron transport chain is part of the light-dependent reactions, where it transfers electrons from photosystem II to photosystem I, generating ATP and NADPH. In cellular respiration, the electron transport chain is the final step in the process, where it transfers electrons from NADH and FADH2 to oxygen, generating ATP through oxidative phosphorylation. Therefore, the electron transport chain is a common feature in both processes, playing a crucial role in energy production.Rate this question:
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- 24.
Which of these is specific to photosynthesis in plants?
- A.
Electron transport chain
- B.
Krebs cycle
- C.
Calvin Cycle
- D.
Glycolysis
Correct Answer
C. Calvin CycleExplanation
The Calvin Cycle is specific to photosynthesis in plants. It is a series of chemical reactions that occur in the chloroplasts of plant cells, where carbon dioxide is converted into glucose. This cycle is responsible for the synthesis of organic compounds, using the energy from sunlight and the products of the light-dependent reactions. The Calvin Cycle is an essential part of the process of photosynthesis, allowing plants to produce food and oxygen.Rate this question:
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- 25.
How many carbons does glucose have
- A.
6
- B.
3
- C.
10
- D.
16
Correct Answer
A. 6Explanation
Glucose is a simple sugar and belongs to the group of monosaccharides. It has a chemical formula of C6H12O6, which means it contains 6 carbon atoms. Therefore, the correct answer is 6.Rate this question:
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