Plants Quiz. Middle School
Plant Quiz. All questions. . . Take You Time, You have 15 min to complete. 2 Attempts necessary.
Questions and Answers
- 1.
What does photosynthesis do?
- A.
Creates the green color on leaves
- B.
Makes food for plants
- C.
Creates chloroplasts
- D.
Holds plants leaves together
Correct Answer
B. Makes food for plantsExplanation
Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose (food) and oxygen. It takes place in the chloroplasts of plant cells. Therefore, the correct answer is "Makes food for plants."Rate this question:
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- 2.
Which of the following is not a part of photosynthesis?
- A.
Water
- B.
Carbon-dioxide
- C.
Chlorophyll
- D.
Sunlight
Correct Answer
C. ChlorophyllExplanation
Chlorophyll is not a part of photosynthesis. Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. Chlorophyll is a pigment found in the chloroplasts of plant cells that absorbs sunlight and initiates the process of photosynthesis. Without chlorophyll, plants would not be able to capture sunlight and carry out photosynthesis. Therefore, chlorophyll is an essential component of photosynthesis.Rate this question:
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- 3.
In addition to sunlight, what else is required for photosynthesis to take place?
- A.
Carbon-dioxide and water
- B.
Sugar and water
- C.
Salt and sugar
- D.
Sugar and carbon-dioxide
Correct Answer
A. Carbon-dioxide and waterExplanation
Photosynthesis is the process by which plants convert sunlight into energy. In addition to sunlight, plants require carbon dioxide and water to carry out this process. Carbon dioxide is absorbed from the atmosphere through tiny pores called stomata in the leaves. Water is absorbed through the roots and transported to the leaves. Inside the chloroplasts of the plant cells, sunlight, carbon dioxide, and water are used to produce glucose (sugar) and oxygen through a series of chemical reactions. Therefore, carbon dioxide and water are essential for photosynthesis to occur.Rate this question:
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- 4.
The main pigment in leaves i
- A.
Chlorophyll
- B.
Chloroplasts
- C.
Plastids
- D.
Carotonoid
Correct Answer
A. ChlorophyllExplanation
Chlorophyll is the correct answer because it is the main pigment found in leaves. It is responsible for the green color of plants and plays a crucial role in photosynthesis, the process by which plants convert sunlight into energy. Chlorophyll absorbs light energy and uses it to produce glucose and oxygen. Without chlorophyll, plants would not be able to carry out photosynthesis and would not be able to survive.Rate this question:
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- 5.
The main products of photosynthesis are:
- A.
Glucose and water
- B.
Water and carbon dioxide
- C.
ATP and NADPH
- D.
Glucose and oxygen
- E.
Oxygen and water
Correct Answer
D. Glucose and oxygenExplanation
During photosynthesis, plants use sunlight, carbon dioxide, and water to produce glucose and oxygen. Glucose is a sugar molecule that serves as the primary source of energy for the plant. It is stored in the plant's cells or used for growth and other metabolic processes. Oxygen is a byproduct of photosynthesis and is released into the atmosphere. It is essential for the survival of aerobic organisms, including humans, as it is used in cellular respiration to produce energy. Therefore, the main products of photosynthesis are glucose and oxygen.Rate this question:
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- 6.
What gas is given off by plants?
- A.
Carbon Dioxide
- B.
Oxygen
- C.
Nitrogen
- D.
Hydrogen
Correct Answer
B. OxygenExplanation
Plants give off oxygen as a byproduct of photosynthesis. During photosynthesis, plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. The glucose is used as a source of energy for the plant, while the oxygen is released into the atmosphere. This process is essential for maintaining the balance of gases in the earth's atmosphere and is crucial for the survival of many organisms that rely on oxygen for respiration.Rate this question:
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- 7.
The part of the stamen that contains pollen
- A.
Filament
- B.
Sepals
- C.
Anther
- D.
Leaves
- E.
Stem
Correct Answer
C. AntherExplanation
The anther is the part of the stamen that contains pollen. It is located at the top of the filament, which is a slender stalk that supports the anther. The anther is responsible for producing and releasing pollen, which is necessary for the fertilization of plants.Rate this question:
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- 8.
In plants what moves food down from the leaves?
- A.
Phloem
- B.
Xylem
- C.
Food Throat
Correct Answer
A. PhloemExplanation
Phloem is the correct answer because it is the tissue responsible for transporting food, such as sugars and other organic compounds, from the leaves to other parts of the plant. This process is known as translocation. Xylem, on the other hand, is responsible for transporting water and minerals from the roots to the leaves. "Food Throat" is not a valid term or concept in plant biology.Rate this question:
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- 9.
What are the parts of the female reproductive systems- the pistil- in a plant?
- A.
Stigms, stylus, uterus
- B.
Ovary, Style, Delta
- C.
Stigma, Style, Ovary
Correct Answer
C. Stigma, Style, OvaryExplanation
The correct answer is Stigma, Style, Ovary. In a plant, the female reproductive system, also known as the pistil, consists of three main parts: the stigma, style, and ovary. The stigma is the sticky structure at the top of the pistil that receives pollen. The style is a long tube-like structure that connects the stigma to the ovary. The ovary is the enlarged base of the pistil that contains the ovules, which eventually develop into seeds after fertilization.Rate this question:
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- 10.
How is a seed made?
- A.
Pollen fertilizes an egg in a stem.
- B.
Pollen fertilizes an egg in the pistil.
- C.
Pollen fertilizes an egg in the flower.
Correct Answer
B. Pollen fertilizes an egg in the pistil.Explanation
A seed is formed when pollen, which contains the male reproductive cells, fertilizes an egg in the pistil, which contains the female reproductive cells. This fertilization process leads to the development of a seed, which contains the embryo of a new plant.Rate this question:
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- 11.
What do stomata do?
- A.
Let gases in and out.
- B.
Eat worms.
- C.
Do photosynthesis.
Correct Answer
A. Let gases in and out.Explanation
Stomata are small openings found on the surface of plant leaves and stems. They are responsible for the exchange of gases, allowing carbon dioxide to enter the plant for photosynthesis and oxygen to exit as a byproduct. This process is essential for the plant's survival as it enables the uptake of necessary gases and the release of waste gases. The option "Let gases in and out" accurately describes the role of stomata in facilitating gas exchange in plants.Rate this question:
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- 12.
What is the leaves biggest job?
- A.
Eat
- B.
Photosynthesis
- C.
Direct the plant.
Correct Answer
B. PhotosynthesisExplanation
Photosynthesis is the correct answer because it is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. This process occurs in the leaves of plants and is essential for their survival as it provides them with the energy they need to grow and carry out other functions. Without photosynthesis, plants would not be able to produce food and oxygen, making it the biggest job of the leaves.Rate this question:
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- 13.
What do roots do?
- A.
Absorb water and nutrients.
- B.
Let out water.
- C.
They have no jobs.
Correct Answer
A. Absorb water and nutrients.Explanation
Roots play a crucial role in a plant's life by absorbing water and nutrients from the soil. This process is essential for the plant's growth and survival as it allows the plant to obtain the necessary resources for photosynthesis, metabolism, and overall development. Without roots, plants would not be able to access the vital elements required for their functioning, making them unable to thrive.Rate this question:
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- 14.
What is a tropism?
- A.
Plants response to touch.
- B.
Plants response to gravity.
- C.
Plants response to sound.
- D.
All of the above.
Correct Answer
D. All of the above.Explanation
A tropism is a plant's response to external stimuli such as touch, gravity, and sound. Plants exhibit positive tropism when they grow towards the stimulus and negative tropism when they grow away from it. For example, plants show thigmotropism when they respond to touch by curling their tendrils around a support, gravitropism when they grow roots downwards and shoots upwards in response to gravity, and phonotropism when they respond to sound vibrations. Therefore, the correct answer is "All of the above" as plants can exhibit tropisms in response to touch, gravity, and sound.Rate this question:
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- 15.
Plants with roots, stems, leaves, and flowers reproduce with-
- A.
Spores.
- B.
Seeds.
- C.
Chloroplasts.
- D.
Cell walls.
Correct Answer
B. Seeds.Explanation
Plants with roots, stems, leaves, and flowers reproduce with seeds. Seeds are the reproductive structures of plants that contain an embryo and are capable of developing into a new plant. They are produced through the process of sexual reproduction, where pollen from the male reproductive organ (stamen) fertilizes the female reproductive organ (pistil). The fertilized ovule then develops into a seed, which can be dispersed and germinate under favorable conditions to give rise to a new plant. This method of reproduction is common in angiosperms, which are flowering plants.Rate this question:
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- 16.
What is the process by which pollen is transferred from the stamen to the stigma called?
- A.
Photosynthesis
- B.
Respiration
- C.
Reproduction
- D.
Pollination
Correct Answer
D. PollinationExplanation
Pollination is the process by which pollen, containing male reproductive cells, is transferred from the stamen (male part) to the stigma (female part) of a flower. This transfer can occur through various means, such as wind, water, insects, or other animals. It is an essential step in the reproduction of flowering plants, as it allows for the fertilization of the ovules and the production of seeds. Photosynthesis and respiration are unrelated processes involved in energy production, while reproduction is a broader term that encompasses various stages, including pollination.Rate this question:
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- 17.
What is the "male" part of the flower called?
- A.
Stamen
- B.
Stigma
- C.
Pistil
- D.
Sepal
Correct Answer
A. StamenExplanation
The "male" part of the flower is called the stamen. The stamen is responsible for producing and releasing pollen, which is necessary for fertilization. It consists of two main parts: the filament, which is a long, slender stalk, and the anther, which is located at the top of the filament and contains the pollen sacs.Rate this question:
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- 18.
What is the "female" part of the flower called?
- A.
Stamen
- B.
Pistil
- C.
Sepal
- D.
Embryo
Correct Answer
B. PistilExplanation
The "female" part of the flower is called the pistil. The pistil is the reproductive organ of the flower that contains the ovary, style, and stigma. It is responsible for receiving pollen and fertilization, ultimately leading to the production of seeds and fruits. The stamen, on the other hand, is the "male" part of the flower, which produces pollen. The sepal is the outermost part of the flower that protects the developing bud, while the embryo refers to the early stage of development in a seed.Rate this question:
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- 19.
Which part of the flower produces pollen?
- A.
Pistil
- B.
Stamen
- C.
Sepal
- D.
Petal
Correct Answer
B. StamenExplanation
The stamen is the male reproductive part of a flower and is responsible for producing pollen. It consists of two main parts, the filament and the anther. The anther contains pollen sacs, where pollen grains are produced. These pollen grains are then released and can be transported to the female reproductive part of another flower for pollination. Therefore, the stamen is the correct answer for the part of the flower that produces pollen.Rate this question:
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- 20.
Which part of the plant holds the plant in place?
- A.
Stem
- B.
Root
- C.
Leaf
- D.
Seed
Correct Answer
B. RootExplanation
The root holds the plant in place. Roots are the part of the plant that grow underground and anchor the plant to the soil. They also absorb water and nutrients from the soil, which are essential for the plant's growth and survival. Additionally, roots provide support and stability to the plant, preventing it from being easily uprooted or blown over by strong winds.Rate this question:
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- 21.
Which substance makes plants green?
- A.
Vacuole
- B.
Carbon dioxide
- C.
Oxygen
- D.
Chlorophyll
Correct Answer
D. ChlorophyllExplanation
Chlorophyll is the pigment responsible for the green color in plants. It is located in the chloroplasts of plant cells and plays a crucial role in photosynthesis. Chlorophyll absorbs sunlight and converts it into chemical energy, which is used to produce glucose and oxygen. Without chlorophyll, plants would not be able to carry out photosynthesis and would not be green.Rate this question:
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- 22.
Which gas is used by plants to make food?
- A.
Oxygen
- B.
Carbon dioxide
- C.
Helium
- D.
Hydrogen
Correct Answer
B. Carbon dioxideExplanation
Plants use carbon dioxide to make food through a process called photosynthesis. During photosynthesis, plants absorb carbon dioxide from the atmosphere and combine it with water and sunlight to produce glucose and oxygen. This glucose serves as the plant's food source, while oxygen is released back into the air as a byproduct. Oxygen is not used by plants to make food but is released during the process. Helium and hydrogen are not involved in photosynthesis and are not used by plants for food production.Rate this question:
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- 23.
Which part of the plant allows for the movement of water and nutrients through the plant?
- A.
Stem
- B.
Leaf
- C.
Petal
- D.
Flower
Correct Answer
A. StemExplanation
The stem of a plant allows for the movement of water and nutrients through the plant. It acts as a transport system, carrying water and minerals from the roots to the leaves and other parts of the plant. The stem also provides support to the plant, holding it upright and allowing it to grow towards the sunlight. Additionally, the stem contains vascular tissues, such as xylem and phloem, which are responsible for the transportation of water, nutrients, and sugars throughout the plant.Rate this question:
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- 24.
What is A labeled on the Flower??
- A.
Petal
- B.
Style
- C.
Anther
- D.
Sepal
Correct Answer
A. PetalExplanation
The correct answer is Petal...Rate this question:
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- 25.
What is B labeled on the Flower??
- A.
Style
- B.
Stamen
- C.
Stigma
- D.
Filament
Correct Answer
C. StigmaExplanation
The Correct answer is Stigma.Rate this question:
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- 26.
What is C labeled on the Flower??
- A.
Stamen
- B.
Stigma
- C.
Sepal
- D.
Style
Correct Answer
D. StyleExplanation
The correct answer is Style.Rate this question:
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- 27.
What is D labeled on the Flower??
- A.
Sepal
- B.
Style
- C.
Anther
- D.
Filament
Correct Answer
A. SepalExplanation
The correct answer is Sepal.Rate this question:
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- 28.
What is E labeled on the Flower??
- A.
Petal
- B.
Ovary
- C.
Anther
- D.
Pistill
Correct Answer
C. AntherExplanation
The correct answer is Anther.Rate this question:
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- 29.
What is F labeled on the Flower??
- A.
Style
- B.
Pollen
- C.
Filament
- D.
Anther
Correct Answer
C. FilamentExplanation
The correct answer is Filament.Rate this question:
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- 30.
What is G labeled on the Flower??
- A.
Stigma
- B.
Octagon
- C.
Ovule
- D.
Ovary
Correct Answer
D. OvaryExplanation
The correct answer is Ovary..Rate this question:
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- 31.
What is H labeled on the Flower??
- A.
Stigma
- B.
Pistill
- C.
Ovlue
- D.
Ovary
Correct Answer
C. OvlueExplanation
The correct answer is Ovule.Rate this question:
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- 32.
What part of the flower determines how many seeds will develop?
- A.
Ovules
- B.
Anthers
- C.
Sunlight
- D.
Pollen
Correct Answer
A. Ovules -
- 33.
Which of the following factors reduce erosion?
- A.
Increasing the amount of rainfall.
- B.
Increasing the slope of land (Bigger hills)
- C.
Increasing the amount of plants.
- D.
Increasing the population
Correct Answer
C. Increasing the amount of plants.Explanation
Increasing the amount of plants helps to reduce erosion because plants have roots that hold the soil in place, preventing it from being washed away by rainfall or carried away by wind. The roots also help to bind the soil particles together, making it more difficult for them to be eroded. Additionally, the leaves and stems of plants act as a physical barrier, reducing the impact of raindrops on the soil surface and slowing down the flow of water, further reducing erosion.Rate this question:
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- 34.
Which part of the plant is responsible for making food??
- A.
Roots
- B.
Stem
- C.
Leaves
- D.
Xylem
Correct Answer
C. LeavesExplanation
Leaves are responsible for making food in plants through a process called photosynthesis. They contain chlorophyll, which captures sunlight and converts it into energy. The leaves have tiny openings called stomata that allow carbon dioxide to enter and oxygen to exit. Inside the leaves, the chlorophyll combines carbon dioxide and water to produce glucose and oxygen. The glucose is then used as a source of energy for the plant, while the oxygen is released into the atmosphere. Therefore, leaves play a crucial role in the production of food for plants.Rate this question:
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- 35.
Which plant tissue is responsible for carrying water?
- A.
Phloem
- B.
Xylam
- C.
Roots
- D.
Leaves
Correct Answer
B. XylamExplanation
Xylem is the plant tissue responsible for carrying water. It is a complex tissue composed of specialized cells called tracheids and vessel elements. These cells are dead at maturity and form long tubes that transport water and dissolved minerals from the roots to the rest of the plant. Xylem also provides structural support to the plant.Rate this question:
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- 36.
Phloem is responsible for:
- A.
Carrying sugar from leaves to all parts of the plant
- B.
Carrying water from roots to leaves
- C.
Carrying sugar to leaves from all parts of the plant
- D.
Filling the plant's stem with water
Correct Answer
A. Carrying sugar from leaves to all parts of the plantExplanation
Phloem is responsible for carrying sugar from leaves to all parts of the plant. This is because phloem tissue is specialized in transporting sugars, such as glucose and sucrose, produced during photosynthesis in the leaves to other parts of the plant where they are needed for growth, energy production, and storage. This process is known as translocation and it occurs through the sieve tubes in the phloem, which are connected to companion cells that help in loading and unloading the sugars.Rate this question:
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- 37.
A process through which plants loose water
- A.
Dehydration
- B.
Respiration
- C.
Transpiration
- D.
Prespiration
Correct Answer
C. TranspirationExplanation
Transpiration is the process through which plants lose water. It occurs mainly through the stomata, small openings on the surface of leaves. During transpiration, water is evaporated from the plant's tissues and exits through the stomata into the atmosphere. This process is crucial for the plant's survival as it helps in nutrient uptake, cooling, and maintaining turgidity. Respiration is the process of breaking down organic compounds to release energy, not related to water loss. Dehydration refers to the loss of water in general, not specific to plants. "Prespiration" is not a valid term and does not relate to the process described.Rate this question:
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- 38.
A green-colored substance that plants use to make food from water, carbon dioxide and sunlight
- A.
Chlorophyll
- B.
Pollen
- C.
Stigma
- D.
Sepal
Correct Answer
A. ChlorophyllExplanation
Chlorophyll is a green-colored substance that plants use to make food through the process of photosynthesis. It captures sunlight energy and converts it into chemical energy, which is then used to combine water and carbon dioxide to produce glucose and oxygen. Chlorophyll is found in the chloroplasts of plant cells and gives plants their green color. It is essential for plant growth and is responsible for the absorption of light during photosynthesis.Rate this question:
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- 39.
Do leaves store food?
- A.
Yes.
- B.
No.
- C.
Only if it has sunlight
Correct Answer
A. Yes.Explanation
Leaves do store food through a process called photosynthesis. In photosynthesis, leaves use sunlight, water, and carbon dioxide to produce glucose, which is stored as food in the form of starch. This stored food is then used by the plant for energy, growth, and reproduction. Therefore, leaves play a crucial role in storing and providing food for the plant.Rate this question:
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