Tag: excretion in plants

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Questions Related to excretion in plants

Multiple choice biology excretion in living organisms excretion - plants excretion in plants excretion - animals

How do leaves of plants help in excretion?

  1. Plants store waste materials in the vacuoles of mesophyll cells and epidermal cells.

  2. When old leaves fall, the waste materials are excreted along with the leaves.

  3. Both A and B.

  4. Plants release the waste material by transpiration.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Many plants store waste materials in the vacuoles of mesophyll cells and epidermal cells. When old leaves fall, the waste materials are excreted along with the leaves.

Therefore, the correct answer is option C.

Multiple choice biology excretion in living organisms excretion - plants excretion in plants excretion - animals

How do plants get rid of their excretory products? 

  1. Shedding leaves

  2. Shedding bark

  3. Both A and B

  4. Shading fruits
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Plants get rid of water by transpiration. Waste products may be stored in vacuoles or may be stored in leaves which fall off. Resine and gums are stored in xylem which are harmless to trees. When the leaves and bark are shed, the wastes are eliminated. Thus, option C is correct. 

Multiple choice biology excretion in living organisms excretion - plants excretion in plants excretion - animals

Plants get rid of waste by which of the following method?

  1. Transpiration

  2. Shedding of leaves

  3. Peeling of bark

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The waste products in the plants are stored by the vacuoles which is centrally located in a plant cell. It is filled with waste products until  the plant dies, it does not "excrete" any sort of waste. Plants also eliminate waste by its accumulation in the vacuoles of the aged leave cells which gets removed when such leaves are shed off. This process is called abscission. The excretory products include resins, gums, latex etc. Peeling of bark can also be considered as one of the excretory processes of plants.

Therefore, the correct answer is option D.

Multiple choice biology excretion in living organisms excretion - plants excretion in plants excretion - animals

In deciduous tree, waste is stored in

  1. Leaves

  2. Barks

  3. Roots

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Deciduous trees are those that shed their leaves once in a year and new leaves are grown. these are also known as the evergreen trees.

They store their waste in old and decaying leaves so that the waste gets removed as the leaves shed.
When leaves fall from a deciduous tree they contain crystals of waste materials that have built up as a result of metabolism.
So, the correct option is 'Leaves'

Multiple choice biology life processes guttation excretion in plants long distance transport of water

Waste products produced during respiration in plant is/are

  1. CO$ _{2}$

  2. Water

  3. Oxygen

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Like animals, plants also respire all the time because their cells need energy, to stay alive, but plants can only photosynthesize when they are in the light. Photosynthesis happens in the chloroplasts of plant cells. 
  • It produces glucose for use by the plant, and oxygen as a waste product. Respiration uses oxygen and produces carbon dioxide and water as a waste product.

So, the correct answer is option D.

Multiple choice biology through the alimentary canal guttation excretion in plants long distance transport of water

The main waste products of plants are

  1. CO$ _2$ and NO$ _2$.
  2. CO$ _2$ and water vapour.
  3. CO$ _2$, O$ _2$ and water vapour.

  4. None of the above.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Plants eliminate some waste through diffusion. During the day, excess oxygen gas produced by photosynthesis is released through the stomata. Carbon dioxide produced by respiration is normally used up during photosynthesis. At night, however, as photosynthesis slows, carbon dioxide is not used up as fast as it is produced, and it is released as a waste product. Plants also release waste water by transpiration and guttation. 

Therefore, the correct answer is option C.

Multiple choice biology through the alimentary canal guttation excretion in plants long distance transport of water

Plants excrete gases through 

  1. Microscopic pores in leaves.

  2. Small porous roots.

  3. Flowers.

  4. Seeds.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plants eliminate some waste through diffusion. During the day, excess oxygen gas produced by photosynthesis is released through the stomata. Stomata are microscopic pores in leaves. Carbon dioxide produced by respiration is normally used up during photosynthesis. At night, however, as photosynthesis slows, carbon dioxide is not used up as fast as it is produced, and it is released as a waste product. Plants also produce oxygen as a by-product of photosynthesis. The oxygen that is not used for respiration is also excreted through the stomata. Plants do not excrete gases through flowers, roots and seeds. 

Therefore, the correct answer is option A.