STD 11 - 9. Biomolecules — NEET STD 11 Science — Question

Which statement are correct from given statement ?
(i) In majority of the dicotyledonous plants primary root form.
(ii) Tap root system present in mustard plant or all dicotyledonous plants.
(iii) In monocotyledonous plants adventitious roots system present.
(iv) Fibrous root arises from the base of the stem after death of primary root.
(v) Roots arise from parts of the plant other than the radicle and are called pulvinus roots.

Which of the following statements regarding the structure of microsporangium are correct ?
(i) Microsporangium is generally surrounded by four wall layers-epidermis, endothecium, middle layers and tapetum.
(ii) Outer three layers perform functions of protection and dehiscence of anther.
(iii) Cells of tapetum undergo meiosis and produce microspore tetrads.

Ruminate endosperm is present in:

If bamboo plant is growing in a far forest then what will be its trophic level

When spontaneous process occurs then free energy of system

According to Alexander von Humboldt

In aerobic respiration

Male and female gametophytes do not have an independent free living existence in

Select the mismatch:
a. Gas vacuoles - Green bacteria
b. Large central vacuoles - Animal cells
c. Protists - Eukaryotes
d. Methanogens - Prokaryotes