MCQ
Pith in stem is derived from
- AProtoderm
- BProcambium
- ✓Ground meristem
- DPlate meristem
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$(1)$ $Z$ shape is formed when all the carriers are placed in a sequence on a redox potential scale.
$(2)$ The $4e^-$ released are accepted by various electron acceptors and finally enter into $PS-II$ instead of returning to $PS-I.$
$(3)$ In this process both $PS-I$ and $PS-II$ take part
$(4)$ As the electrons released in various ways do not return to their original donors, such an electron transport is called non-cyclic electron transport.
| $(a)$ Gliding joint | $(i)$ Between carpal and metacarpal of thumb |
| $(b)$ Hinge joint | $(ii)$ Between Atlas and Axis |
| $(c)$ Pivot joint | $(iii)$ Between the carpals |
| $(d)$ Saddle joint | $(iv)$ Between Humerus and Ulna. |
Select the correct option from the following