Agriculture - Online Test
Q1. The correct arrangement of the zones as seen in the vertical section of root is
(i) Root hair zone
(ii) Zone of meristem
(iii) Root cap zone
(iv) Zone of maturation
(v) Zone of elongation
Answer : Option A
Explaination / Solution:
The correct arrangement of the zones as seen in the vertical section of root is root cap zone, region of meristematic activity, region of elongation, region of maturation and root hair region.
Q2. In monocotyledons, guard cell of stomata areThe figure given below is the apical meristem in root. Identify ‘A’ in the diagram.
Answer : Option D
Explaination / Solution:
The part ‘A’ is protoderm in apical meristem of root.
Q3. Which growth is also called apparent growth?
Answer : Option D
Explaination / Solution:
Irreversible increase in mass or volume of plant part is called apparent growth. Apparent growth is permanent and cannot be reversed back as it occurs due to increase in cell number.
Q4. Difference between osmotic pressure is
Answer : Option D
Explaination / Solution:
Difference between osmotic pressure is called diffusion pressure deficit (DPD). It is the reduction of diffusion pressure of water in solution or cell over its pure state due to presenceof solute.
Q5. The most common mineral elements which became deficient in agricultural soil are
Answer : Option B
Explaination / Solution:
The minerals elements like nitrogen, phosphorus and potassium are required by plants in larger quantity. These elements becomes deficient in agricultural soil.
Q6. Pond scum is
Answer : Option D
Explaination / Solution:
Green patchy structure that develops around the surface of stagnant water bodies having thread like mass are called pond scum. They are actually a species of green algae ],Spirogyra.
Q7. Which form of carbon is absorbed by the hydrophytes through their general body surface?
Answer : Option B
Explaination / Solution:
Hydrophytes are those plants that grow in water. Hydrophytes can absorb Bicarbonates through their general body surface.
Q8. What is the function of germ pore?
Answer : Option A
Explaination / Solution:
Pollen grain is covered by two layers. The outer layer is called exine, made up of tough material. The inner layer is intine. There is a small opening in exine layer through which pollen grain germinate to form pollen tube.
Q9. A human male produces sperms with the genotypes AB ,Ab , aB , ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this person?
Answer : Option A
Explaination / Solution:
The genotype AaBb of a male produce gametes AB,Ab, aB and ab in equal proportion as the law of segregation.
Q10. Which one is incorrect about Glycolysis?
Answer : Option A
Explaination / Solution:
Glycolysis is not a cyclic pathway and carbon dioxide gas is not released during this cycle. Oxygen is not required for Glycolysis process. Glycolysis occurs in cytoplasm of the cell.
