Agriculture - Online Test
Q1. Which of the following has highest water potential?
Answer : Option A
Explaination / Solution:
Distilled water do not contain any kind of salt in it so its water potential is 0. Addition of solute results into further decrease in water potential in negative term.
Q2. Which kind of embryo is shown in figure below
Answer : Option D
Explaination / Solution:
The zygote divides mitotically many times to form large number of cells. These cells arrange into different shape. The most common embryo is Globular embryo.
Q3. Amino acid derivatives in which –OH component of carboxylic group is replaced by another amino group are called
Answer : Option C
Explaination / Solution:
Amides are obtained from the replacement of –OH component of carboxylic group of amino acid by another amino group.
Q4. A plant producing seeds but lacking flowers is
Answer : Option C
Explaination / Solution:
Gymnosperms produces seeds without formation of flowers. The gymnosperms (gymnos : naked, sperma : seeds) are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilisation. The seeds that develop post-fertilisation, are not covered, i.e., are naked.
Q5. In cells, ATP is synthesized in
Answer : Option C
Explaination / Solution:
ATP is synthesized by cells (in mitochondria and chloroplasts) is named phosphorylation.
Q6. Chromosome theory of inheritance was proposed by
Answer : Option B
Explaination / Solution:
Walter Sutton and Theodor Boveri are credited with developing the Chromosomal Theory of Inheritance, which states that chromosomes carry the unit of heredity (genes) in 1902.
Q7. At the end of citric acid cycle, most of the energy is transferred to
Answer : Option D
Explaination / Solution:
Citric acid cycle or start with pyruvate and leads to complete oxidation of glucose to carbon dioxide and energy in form of ATP, NADH and .
At end of citric acid cycle, most of the energy is transferred to NADH and .
Q8. A plant in which adventitious roots develop chlorophyll and perform photosynthesis is
Answer : Option C
Explaination / Solution:
Tinospora develops adventitious roots having chlorophyll and perform photosynthesis. This kind of roots develops from stems andhang in air.
Q9. Which one function as “Biological check post”
Answer : Option B
Explaination / Solution:
Endodermis forms the outermost layer of vascular bundles. Anything entering inside the plant body must cross theendodermis to be transported via xylem and phloem. So, endodermis is called as biological check post of the cell.
Q10. Exponential growth is dependent on
Answer : Option B
Explaination / Solution:
Exponential growth is dependent on initial size, rate of growth and time interval.
