Casparian strip refers to a woody band of tissue found in the endodermis of cell wall of plants. Casparian strip is composed of __________.

Cell membranes exhibit various mechanisms for transport of various substances in and out of cell. The mechanism by which water moves out of the cell by osmosis causing protoplast to shrink is known as ________.

There are 20 different amino acids known. The amino acids cysteine and methionine contain the following common element _________.

Nitrogenase and nitrate reductase are the vital enzymes that participate in nitrogen metabolism. Which of the following element is an important component of both nitrogenase and nitrate reductase?

Various bacteria play major roles in nitrogen cycle and nitrogen fixation. The conversion of ammonia to nitrite is carried out by _________.

Drought is a significant environmental stressor that affects overall plant growth. The drought stress response in plants includes complex adaptive biological processes that help plants to survive under various conditions. Which of the following amino acids accumulates as a response to drought stress condition of plants?

C3 plants refer to the plants that produce 3-Phosphoglycerate (PGA), a 3-carbon molecule as the first stable product of dark reaction of photosynthesis. Which of the following plants are termed C3 plants?

Photosynthetically Active Radiation (PAR) refers to the amount of light accessible for photosynthesis in green plants. The photosynthetically active radiation (PAR) refers to which of the following spectrum of light?

Aromatic amino acids refer to the amino acids possessing an aromatic ring. Which of the following amino acids is an aromatic amino acid?

The dark reaction of photosynthesis or Calvin Cycle refers to the pathway in which the free energy of ATP and reducing power of NADPH are used to fix CO₂ to form carbohydrate. The first stable product of the dark reaction of photosynthesis is called _____________.

Anti-auxins are substances that competitively inhibit the activities of auxins. Which of the following is an example of anti-auxins?

Many blue green algae are capable of fixing atmospheric nitrogen. Which of the following structures play a significant role in nitrogen fixation in the blue green algae?

Phytotropins are specialized class of auxin transport inhibitors. Which of the following is an example of phytotropins?

Abscisic acid (ABA) is one of the most vital plant growth hormones. Which of the following compounds represents the precursor of abscisic acid?

Auxins are vital phytohormones that play various roles in growth responses. Auxins may be either naturally occurring or synthetic compounds. Which of the following is an example of synthetic auxin?