______ vascular tissue in plants contains specialised cells called sieve tube elements, and ______ is their primary function.
Phloem; transport of food through translocation
Plants have two kinds of vascular tissue. Xylem is made of tracheids, vessels, xylem parenchyma and xylem fibres, while phloem is made of sieve tube elements, companion cells, phloem parenchyma and phloem fibres. So the tissue with sieve tube elements is phloem.
Phloem carries food, mainly sugars made in the leaves during photosynthesis, to other parts of the plant such as roots, fruits and growing tips. This transport of soluble food is called translocation, so the second blank is the transport of food through translocation.
Xylem does not contain sieve tube elements; it transports water and minerals from the roots upwards, not organic nutrients. Phloem does not transport oxygen to leaves, as gases move in and out of the plant mainly by diffusion through stomata.
Hence, Phloem; transport of food through translocation.
Which feature helps pteridophytes survive better than bryophytes in places with limited moisture?
Which tissue can be found in a fern stem cross-section, but is missing in Bryophyta and Thallophyta?
The seeds of gymnosperms are considered 'naked' as:
Which of the following is NOT a part of Xylem tissue?
Which of the following characteristics helps gymnosperms survive in cold and dry regions?
Which condition is most favorable for the growth of fungi?
A plant grows mainly in water and has a body that is not differentiated into true roots, stems, and leaves. To which group does it belong?
Which meristem is located at the base of certain plants and helps them regenerate after cutting?
Which of the following plant groups includes a green mat-like plant growing on a damp wall that lacks true roots and vascular tissues?
Which of the following best describes how plants exhibit movement due to growth?
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Part of N 2cycle that is opposed to N 2fixation is:
Which among the following is the reproductive part of a plant?
Fibres (Adventitious) roots are found in :
In which Part of the flower does Meiosis take place ?