STD 11 - 12. Respiration in plants — NEET STD 11 Science — Question

Given below are two statements
Statement I :
The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.
Statement II :
Cell wall not only gives shape to the cell and protects the cell from mechanical damage and infection it also helps in cell to cell interaction and provides barrier to undesirable macromolecules.
Choose the correct answer from the option given below:

Which of the following flowers only once in its life-time?

Intracellular compartments are not found in cells of

Presence of many embryos (Polyembryony) is a characteristic feature of

Inclusion bodies of blue-green, purple and green photosynthetic bacteria are

Fill in the blanks and choose the correct option given below.
(i) A prom l otes senescence and abscission of plant organs especially of leaves and flowers.
(ii) The rise in rate of respiration during ripening of fruits is called as respiratory B.
(ii) C regulates many physiological processes so it is the one of the most widely used PGR in agriculture.
(iv) The most widely used compound as source of ethylene is D.
(v) Ethephon hastens fruit ripening in tomatoes and apples and accelerates E in flowers and fruits.
(vi) F is general plant growth inhibitor and an inhibitor of plant metabolism.
(vii) G stimulates the closure of stomata in the epidermis and increase the tolerance of plants to various kinds of stresses. It is also called the H hormone.
(viii) I helps seeds to withstand desiccation and other factors unfavorable for growth. In most situations, it acts as an antagonist to J.
(ix) The response of plants to periods of day/night is termed K.
(x) The sites of perception of light/dark duration are the L in plants.
(xi) The hormonal substance migrates from M to N apices for inducing flowering only when the plants are exposed to the necessary inductive photoperiod.
(xii) There are plants for which flowering is either quantitatively or qualitatively dependent on exposure to low temperature. This phenomenon is termed O.

Which of the following is/are involved in oxidative decarboxylation :

Delete odd one