STD 11 - 8. Cell the unit of life — NEET STD 11 Science — Question

Coenobium means

Agar-agar is obtained from

Statement I: Cleistogamous flowers produce assured seed-set even in the absence of pollinators.
Statement II: Cleistogamous flowers are invariably autogamous because of close flowers.

Which of the following is not naturally occurring plant hormone

The normal or Polygonum type of embryo sac is

Choose the true statement for dicotyledonous root.
(i) The innermost layer of the cortex is called endodermis which consist of single layer of barrel-shaped cells without any intercellular spaces.
(ii) Initiation of lateral roots and vascular cambium during the secondary growth takes place from endodermis.
(iii) Pith is large and well developed.
(iv) The parenchymatous cells which lie between the xylem and the phloem are called conjuctive tissue.
(v) There are usually more than six (polyarch) xylem bundles.

Which of the following are true statement ?
(i) Leaf base may bear two lateral small leaf like structures called stipules.
(ii) In dicotyledonous, the leaf base expands into a sheath covering the stem partially or wholly.
(iii) In some monocotyledons plants, the leaf base may become swollen, which is called pulvinus
(iv) Dicotyledonous plants generally possess reticulate venation.
(v) Parallel venation is the characteristic of most monocotyledons.

In eubacteria, a cellular component that resembles eukaryotic cell is