MCQ
Middle lamella is made up of
  • A
    Cellulose
  • B
    Suberin
  • Calcium and magnesium pectate
  • D
    Lignin

Answer

Correct option: C.
Calcium and magnesium pectate
c
It’s obvious.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Which of the following decompose the remanents of the plants into $ CO_2$ and water
Transcription
Autoganny means....
Pyruvate (pyruvic acid) dehydrogenase is used in converting
Which of the following pairs are correctly matched

(1)Assimilatory roots      —       Photosynthesis

(2)Fasciculated roots     —       Food storage

(3)Stilt root                     —      Mechanical support

(4)Sucking root              —      Absorption of moisture from the air

Select the correct answer -

Which characters for secondary growth are incorrect from given characters ?
(i) The cells of cambium cut off towards pith, mature into secondary phloem and the cells cut off towards periphery mature into secondary xylem.
(ii) The vascular cambium is generally more active on the outer side than on the inner.
(iii) The primary and secondary phloems get gradually crushed due to the continued formation and accumulation of secondary xylem.
(iv) The primary xylem however remains more or less intact, in or around the centre.
(v) At some places, the cambium forms a narrow band of parenchyma, in the radial directions called secondary medullary rays.
Thallophytes are
Aristotle is associated with
Choose correct sentence.

$(I)$ Nucleus of the functional megaspore divides meiotically to form two nuclei.

$(II)$ After $8$ nucleate stage, cell walls are laid down leading to organization of typical female gametophyte

$(III)$ The egg apparatus, consists of two synergids and one egg cell.

$(IV)$ Three cells are at the chalaza end are called antipodal cells.

Which of the following type of age pyramid reflects a stable population growth?