List of top Botany Questions

Match the following

Match the following

Choose the correct sequence of no. of molecules formed when 6 mol of CO\textsubscript{2 enters into calvin cycle pathway}

Assertion (A): TCA cycle requires continuous replenishment of oxaloacetic acid.
Reason (R): TCA cycle requires regeneration of NAD\textsuperscript{+} and FAD\textsuperscript{+} from NADH and FADH.

Choose the correct statements among the following
I. Conjugation is a conservative process because donor bacteria donot retain copy of genetic material.
II. In Bacterial transformation, genetic information is expressed in recipient cell.
III. Salmonella typhimurium is a transformation bacteria.
IV. Biologically active toxic pollutant can be detected by Biosensors.

Choose the correct statements among the following
I. No energy is used directly by the plant to translocate water.
II. The mechanism of water transport from the soil through the plant body to the atmosphere includes diffusion, bulk flow, and osmosis.
III. Water moves in the root via apoplast, transmembrane and symplast pathway.
IV. The cohesion tension theory explains water transport in xylem.

Choose the correct statements among the following
I. Proton gradient across the membrane decreases due to cyclic flow of electrons between PQ and cytochrome b.
II. NADP reductase enzyme is located on the stroma side of the membrane.
III. PQ removes electron from the stroma

Identify the tissues in correct sequence based on the given characters
A) Cell walls are thickened with cellulose, hemicellulose and pectin.
B) Cellulose walls Polygonal and perform photosynthesis.
C) Thickened and lignified cell walls with pits. Options :

Arrange the following events that occur during prophase-I of Meiosis - I
A) Formation of synaptonemal complex
B) Repulsion between Homologous chromosomes
C) Formation of Bivalents
D) Exchange of Genetic material between non-sister chromatids of Homologous chromosomes
E) Terminalization
The correct sequence is
Options :

Match the following

Identify the correct photosynthetic equation related to Ecosystem.
I. When plant produces 162(gr) dry organic matter, 264 gr CO$_2$ is fixed.
II. 1 gram dry organic matter can fix 1.63g of CO$_2$.
III. To produce 198 gr O$_2$ plant absorb 284g CO$_2$.
IV. Plants can consume 687.5 K cal solar energy to produce 180 gr Glucose.

Identify the correct sequence to the following statements
A) Seeds are attached to the fruits
B) Free nuclear endosperm
C) Grass family cotyledon
Options :

Assertion (A): Lipids are not true Biomacromolecules.
Reason (R): The molecular weight of lipids is less than 800 Daltons.

Study the following table and identify the correct combination

Assertion (A): In plant vacuole, the concentration is higher than the cytoplasm.
Reason (R): Tonoplast facilitates the transport of ions and other materials against concentration gradient.
Identify the correct option from the following
Options:

Match the following

Choose the correct statements from the following
I. Zygote is the vital link for continuity of species.
II. In water plants the number of male gametes produced are several times more than the number of female gametes.
III. Meiosis can occur in haploid organisms.
IV. Adventitious buds are developed on leaf margins of Bryophyllum.

Assertion (A): Whittaker proposed a five kingdom classification based on many criteria.
Reason (R): This is due to the understanding of the different scientists differently over time.
Identify the correct option from the following: