How many organisms in the list given below are autotrophs?
Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Sacharomyces, Trypanosoma, Porphyra, Walfia.

• Four

• Five

• Six

• Six

Read the following five statements and answer as asked to them
I. In Equisetum the female gametophyte is retained on the parent sporophyte.
II. In Ginkgo male gametophyte is not independent.
III. The sporophyte in Riccia is more developed than that in Polytrichum.
IV.  Sexual reproduction in Volvox is isogamous.
V. The spores of the above statements are correct?

• Two

• Three

• Four

• Four

Which one of the following pairs is wrongly matched?

• Ginkgo – Archegonia

• Salvinia – Prothallus

• Viroids – RNA

• Viroids – RNA

In the five-kingdom classification, Chlamydomonas and Chlorella have been included in

• Protista

• Algae

• Plantae

• Plantae

For its activity, carboxypeptidase requires

• Zinc

• Iron

• Niacin

• Niacin

6.

Which one of the following structures is an organelle within an organelle?

• Ribosome

• Peroxisome

• ER

• ER

Which one of the following organisms is correctly matched with its three characteristics?

• Pea: C₃ pathway, Endospermic seed, Vexillary aestivation

• Tomato: Twisted aestivation, Axile placentation, Berry

• Onion: Bulb, Imbricate aestivation, Axile placentation

• Onion: Bulb, Imbricate aestivation, Axile placentation

How many plants in the list given below have marginal placentation?
Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin

• Four

• Five

• Six

• Six

Read the following four statements:
I. Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
II. In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.
III. Stamens in flowers of Gloriosa and Petunia are polyandrous.
IV. Symbiotic nitrogen fixers occurs in free-living state also in soil. 

How many of the above statements are right 

• Two

• Three

• Four

• Four

Through their effect on plant growth regulators, what do the temperature and light control in the plants?

• Apical dominance

• Flowering

• Closure of stomata

• Closure of stomata