List of top Botany Questions

Enzyme-substrate complex (ES-complex) formation was explained with 'Induced-fit' hypothesis by:

Which is not true regarding non-cyclic electron transport:

The electron transport system present in the mitochondrial membrane, complex-II and complex-IV are respectively:

First action spectrum of photosynthesis was described by:

Assertion (A): Pollinators such as bees, moths, butterflies beetles and flies are major invertibrates. Reason (R): Destruction of land for domestic uses, the food and resting requirements of pollinations are disrupted.

Identify the mineral which is an activator for the enzyme IAA oxidase.

Which one of the following bacteria forms root nodules in Alnus?

Choose the incorrect statements: I. Transport of water and minerals is essentially unidirectional from roots to stem. II. Phloem facilitates unidirectional flow of water and minerals. III. Organic and mineral nutrients undergo multidirectional transport through phloem.

Choose the correct statements: A) The first amino acid in a protein chain is in the left end and termed as C-terminal amino acids. B) Long protein chain folded upon itself like a hollow woolen ball is called tertiary structure. C) In general, only right handed helices are observed in protein. D) In general, polysaccharides will have glycosidic bond formed by dehydration.

Name the plants grow in shady places and growing in direct sunlight are called respectively: A. Heliophytes
B. Sciophytes
C. Mesophytes
D. Hydrophytes

Identify the characters of Bicollateral vascular bundles. A) Conjoint vascular bundle. B) Phloem on either side of xylem separated by cambium. C) Radial vascular bundle.

Assertion (A): Dicliny is to prevent self pollination by producing unisexual flowers. Reason (R): Dioecious condition of papaya prevent both autogamy and geitonogamy.

Based on the given characters, identify the plants in series: i. Solitary inflorescence ii. Self pollination iii. Fasiculated roots A) Asparagus B) Datura C) Tobacco D) Pisum

Germination of seeds while still attached to the mother plant is

Identify the Theophrastus botanical works among the following: A) Vrikshayurveda B) Species plantarum C) Enquiry into plants D) Causae plantarum

Choose the incorrect statements among the following: A) Sexual reproduction in plants was discovered by Malpighi in Maize. B) The Micropropagation results in development of large number of plants in Laboratory. C) Phylogenetic classification was proposed by the studies of Mendel during 19th century. D) Went identified the Auxins presence

Choose the correct statements among the following: A) Carrageen is used as hydrocolloids B) Air bladders can be present in the Laminaria C) All Bryophytes show homosporous condition D) Fussion of two zoospores is called zooidogamous

Choose the correct statements among the following: A) The margin of thalamus grown upward, enclosing the ovary completely in cucumber B) Calyx are green leaf like and protect the flower during bud stage C) In Canna the flower can be made into two similar halves by any vertical plane D) In Cassia the margins of sepals overlap in any particular direction

Pleuropneumonia disease is caused by

The Book entitled 'systema naturae' was published by

In Gymnosperms like Pinus, the female gametophyte is retained within the:

While studying wood anatomy, a student finds that the annual rings are less distinct in trees located in which region?

In an urban garden, a student observes a plant where more than two leaves arise at each node, forming a circle. This phyllotaxy is seen in:

In a marine ecosystem, a specific brown alga is found to possess air bladders to maintain buoyancy near the water surface. This plant is likely:

In the fertilization process of Angiosperms, the pollen grain is usually shed at which stage?