AIPMT Mains Botany Class 11 Questions

Read the following five statements (A - E) and answer as asked next to them.

(A) In Equisetum the female gametophyte is retained on the parent sporophyte.

(B) In Ginkgo male gametophyte is not independent. (C) The sporophyte in Riccia is more developed than that in Polytrichum.

(D) Sexual reproduction in Volvox is isogamous.

(E) The spores of slime molds lack cell walls.

How many of the above statements are correct?

Which one of the following pairs is wrongly matched?

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

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

Read the following four statements (A⁻D):

(A) Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.

(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.

(C) Stamens in flowers of Gloriosa and Petunia are polyandrous.

(D) Symbiotic nitrogen-fixers occur in free-living state also in soil.

How many of the above statements are right?

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

Which one of the following generally acts as an antagonist to gibberellins?

As compared to a dicot root, a monocot root has:

Vernalisation stimulates flowering in:

Cuscuta is an example of:

Which one of the following organisms is scientifically correctly named, correctly printed, according to the International Rules of Nomenclature and correctly described?

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres:

Which one of the following sets of items in the options 1 - 4 are correctly categorised with one exception in it?

Which one of the following is essential for photolysis of water?

In mitochondria, protons accumulate in the

Whorled simple leaves with reticulate venation are present in

Function of companion cells is

Which one of the following is not considered as a part of the endomembrane system?

In Kranz anatomy, the bundle sheath cells have

Sweet potato is homologous to

At metaphase, chromosomes are attached to the spindle fibres by their

Examine the figure given below and select the right option giving all the four parts (a, b, c, d) correctly identified

Consider the following four statements whether they are correct or wrong?

(A) The sporophyte in liverworts is more elaborate than that in mosses

(B) Salvinia is heterosporous

(C) The life-cycle in all seed bearing plants is diplontic

(D) In Pinus male and female cones are borne on different trees The two wrong statements together are

Which one of the following aspects is an exclusive characteristic of living things?

Some vascular bundles are described as open because these

Which one of the following diagrams represents the placentation in Dianthus?

The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D). Select the part correctly matched with its function.

Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given along with

Which one of the following statements about the particular entity is true?

Which one of the following is a xerophytic plant in which the stem is modified into the flat green and succulent structure?

Aestivation of petals in the flower of cotton is correctly shown in

Examine the figures A, B, C and D. In which one of the four options all the items A, B, C and D are correct?

The correct floral formula of soybean is

Read the following four statements, A, B, C and D and select the right option having both correct statements.

STATEMENTS :

(A) Z scheme of light reaction takes place in presence of PSI only.

(B) Only PS I is functional in cyclic photophosphorylation.

(C) Cyclic photophosphorylation results into synthesis of ATP and NADPH₂.

(D) Stroma lamellae lack PS II as well as NADP.

An example of endomycorrhiza is

One of the commonly used plant growth hormone in tea plantations is

Kranz anatomy is one of the characteristics of the leaves of

Transport of food material in higher plants takes place through

Study the pathway given below: In which of the following options correct words for all the three blanks A, B and C are indicated?

Black (stem) rust of wheat is caused by:

An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called:

Examine the figures (A⁻D) given below and select the right option out of 1-4, in which all the four structures A, B, C and D are identified correctly.

Root development is promoted by

Consider the following four statements A, B, C and D and select the right option for two correct statements.

Statements:

(A) Vexillary aestivation is characteristic of the family Fabaceae.

(B) The floral formula for Liliaceae is ⊕ ⚥ P3+3 A3+3 + G(3)

(C) In pea flower the stamens are monadelphous

(D) The floral formula for Solanaceae is ⊕ ⚥ K(5) C(5) A5+ G(2)

Given below is the diagram of a bacteriophage. In which one of the options all the four parts A, B, C and D are correct?

Select the correct combination of the statements (a-d) regarding the characteristics of certain organisms

(a) Methanogens are Archaebacteria which produce methane in marshy areas

(b) Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen

(c) Chemosynthetic autotrophic bacteria synthesize cellulose from glucose

(d) Mycoplasma are aerobic bacteria found in cattle rumen

Given below is the diagram of a stomatal apparatus. In which of the following all the four parts labelled as A, B, C and D are correctly identified?

Manganese is required in:

The floral formula ♂ ⚥ K(5) C(5) A₅ G(2) is that of:

One of the synthetic auxin is: