Agriculture - Online Test
Q1. Transport of water and mineral in plants take place through
Answer : Option C
Explaination / Solution:
Transport of water and mineral in plant take place through xylem tissue present in vascular bundles. Vessels and tracheids are main water conducting elements of xylem.
Q2. Zn2+ is an activator of
Answer : Option C
Explaination / Solution:
Zn2+ also serves as an activator of a group of enzymes: alcohol dehydrogenase, pyridine nucleotide dehydrogenase, carboxypeptidase.
Q3. In Phaeophyceae, the food stored in the form of
Answer : Option D
Explaination / Solution:
In Phaeophyceae, food is stored as complex carbohydrates which may be in the form of laminarin or mannitol.
Q4. The chief pigment associated in process of photosynthesis is
Answer : Option C
Explaination / Solution:
Chlorophyll a, shows higher rate of photosynthesis.so, chlorophyll a is the chief pigment associated with photosynthesis.
Q5. Flower is the site of
Answer : Option A
Explaination / Solution:
Sexual reproduction in flowering plants centres around the flower. Within a flower, there are usually structures that produce both male gametes and female gametes.
Q6. The innate tendency of offspring to resemble their parents is called
Answer : Option D
Explaination / Solution:
The innate tendency of offspring to resemble their parents is called heredity. The offspring resembles to parent due to same genetic combination inherited from parents.
Q7. Organism which depend on dead and decaying organic matter is
Answer : Option A
Explaination / Solution:
A saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals.
This means that saprophytes are heterotrophs. They are consumers in the food chain.
Q8. Reproduction is an essential life process, which help in
Answer : Option D
Explaination / Solution:
During reproduction, new individuals are produced having similar traits that help in continuity of species. It is essential as all living organisms have fixed life span.
Q9. Monstera has
Answer : Option B
Explaination / Solution:
In some plants, like grass,Monsteraand the banyan tree, roots arisefrom parts of the plant other than theradicle and are called adventitious roots
Q10. The tissue present in all organs of plant is
Answer : Option D
Explaination / Solution:
Generally all the organs of plant are made up of parenchyma cells.
