Basic 5 Integrated Science

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Quizzes Created: 19 | Total Attempts: 31,975
| Attempts: 108
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  • 1/10 Questions

    The process by which seed develops into seedling is called....... 

    • Growth
    • Viability of a seed
    • Germination
    • Scar
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About This Quiz

The 'BASIC 5 INTEGRATED SCIENCE' quiz assesses foundational knowledge in botany, covering topics such as seed anatomy, photosynthesis, respiratory gases, plant growth, and air composition. It enhances understanding of plant biology and environmental science.

Basic 5 Integrated Science - Quiz

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  • 2. 

    Cotton seed is easily dispersed by......

    • Insects

    • Wind

    • Water

    • Explosion

    Correct Answer
    A. Wind
    Explanation
    Cotton seeds have a fluffy structure that allows them to be easily carried by the wind. This is known as wind dispersal. As the wind blows, it catches onto the fibers of the cotton seed and carries it away, helping to spread the seeds over a wider area. This method of dispersal increases the chances of the seeds finding suitable conditions for germination and growth.

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  • 3. 

    Which of the following gases is present in the exhaled air? 

    •  Carbon dioxide

    • Oxygen

    • Nitrogen  

    • Hydrogen 

    Correct Answer
    A.  Carbon dioxide
    Explanation
    Exhaled air primarily consists of carbon dioxide, as it is the waste product of cellular respiration. When we inhale, we take in oxygen, which is used by our cells for various metabolic processes. As a result, carbon dioxide is produced and needs to be expelled from the body. Oxygen, nitrogen, and hydrogen are also present in the air we breathe, but they are not the main components of exhaled air.

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  • 4. 

    Which of the following is a mixture of gases? 

    • Food

    • Water

    • Fire

    • Air   

    Correct Answer
    A. Air   
    Explanation
    Air is a mixture of gases because it is composed of various gases such as nitrogen, oxygen, carbon dioxide, and trace amounts of other gases. These gases are not chemically combined but exist together in the atmosphere.

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  • 5. 

    Scattering of fruits and seeds away from their parents plants is termed as........... 

    • Fruit development

    • Seed spread

    • Dispersion

    • Growth

    Correct Answer
    A. Dispersion
    Explanation
    Dispersion refers to the scattering or spreading of fruits and seeds away from their parent plants. This process is essential for the survival and reproduction of plants as it allows for the colonization of new areas and reduces competition among offspring. Through various mechanisms such as wind, water, animals, or self-ejection, fruits and seeds are dispersed to different locations where they can germinate and grow into new plants.

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  • 6. 

    The breaking down of food substances such as glucose and glycerol in the living cell of an organism to release energy with or without oxygen is termed as...... 

    • Digestion

    • Respiration

    • Excretion

    • Nutrition 

    Correct Answer
    A. Respiration
    Explanation
    Respiration is the correct answer because it refers to the process of breaking down food substances like glucose and glycerol in living cells to release energy. This process can occur with or without the presence of oxygen. Digestion is the process of breaking down food in the digestive system, excretion is the elimination of waste products, and nutrition refers to the intake and utilization of nutrients.

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  • 7. 

    The hard outer covering of a seed is called.................. 

    • Testa

    • Embryo  

    • Plumule

    • Endosperm

    Correct Answer
    A. Testa
    Explanation
    The hard outer covering of a seed is called the testa. It serves as a protective layer for the embryo inside the seed, shielding it from external damage and providing support during germination. The testa is often thick and durable, helping to prevent dehydration and providing resistance to mechanical stress. It also acts as a barrier, preventing pathogens and pests from entering the seed. Overall, the testa plays a crucial role in ensuring the survival and successful germination of the seed.

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  • 8. 

    The part of air needed by seeds to germinate is.......

    • Carbon dioxide

    • Hydrogen

    • Oxygen

    • Nitrogen 

    Correct Answer
    A. Oxygen
    Explanation
    Seeds require oxygen for germination as it is essential for respiration to occur. During germination, the seed absorbs water and begins to break down stored food reserves. This process requires energy, which is produced through respiration. Oxygen is necessary for this respiration process to take place, allowing the seed to grow and develop into a new plant. Without sufficient oxygen, the seed would not be able to carry out respiration and germination would be inhibited.

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  • 9. 

    The green pigment in a plant is called........ 

    • Stomata

    • Starch

    • Chlorophyll

    •  Mineral salt

    Correct Answer
    A. Chlorophyll
    Explanation
    Chlorophyll is the correct answer because it is the green pigment found in plants that is responsible for absorbing light energy during photosynthesis. It is essential for the process of converting sunlight into chemical energy, which is used by plants to produce glucose and oxygen. Stomata are the small openings on the surface of leaves that regulate gas exchange, while starch is a carbohydrate used for energy storage in plants. Mineral salts are essential nutrients for plant growth, but they do not refer to the green pigment in plants.

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  • 10. 

    The part of a plant that holds the leaf Blade to the direction of the sun is.....  

    • Apical bud

    • Stem  

    • Petiole

    • Pith

    Correct Answer
    A. Petiole
    Explanation
    The petiole is the part of a plant that holds the leaf blade to the direction of the sun. It is a slender stalk that connects the leaf blade to the stem, allowing the leaf to be positioned optimally for maximum sunlight absorption. The petiole also provides support and flexibility to the leaf, allowing it to adjust its position and orientation to capture sunlight efficiently for photosynthesis.

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  • Current Version
  • Nov 10, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 31, 2020
    Quiz Created by
    Bright
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