Tag: nutrition in living organisms

Questions Related to nutrition in living organisms

Food from the leaves is conducted ______ through the phloem in the stem.

botany nutrition in living organisms mineral transport types of transport translocation of organic solutes

  1. Upwards

  2. Downwards

  3. Both A and B

  4. None of these

Show answer
Correct Option: B
Explanation:

Food from the leaves is conducted downwards through the phloem in the stem.conduction of water through the xylem occurs generally upwards.

Phloem is responsible for transporting _____ in plants.

botany nutrition in living organisms mineral transport types of transport translocation of organic solutes

  1. Sugars

  2. Proteins

  3. Both A and B

  4. None of these

Show answer
Correct Option: C
Explanation:

Xylem transports and stores water and water-soluble nutrients in vascular plants. Phloem is responsible for transporting sugars, proteins, and other organic molecules in plants.

Food substances travel up and down through ______

botany nutrition in living organisms mineral transport types of transport translocation of organic solutes

  1. Xylem

  2. Pholem

  3. Both A and B

  4. None of these

Show answer
Correct Option: B
Explanation:

Water and salt travel upwards mainly in the xylem and food substances travel up and down in the phloem.

State whether the following statements are true or false:
In the vascular bundle of leaf, xylem is located towards the adaxial side of the leaf.

botany nutrition in living organisms mineral transport types of transport translocation of organic solutes

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Leaf has epidermis on both of its surfaces. The photosynthetic tissue of a leaf is sandwiched between its upper and lower epidermis and is well supplied by the vascular system. In a leaf, xylem always faces the upper epidermis i.e. the adaxial side while phloem faces both upper as well as lower epidermis.

Hence, the correct answer is 'True'