Agriculture - Online Test
Q1. When the stamens in a flower remain free, it is said to be
Answer : Option A
Explaination / Solution:
The stamens in a flower may either remain free (polyandrous) or may be united in varying degrees.
Q2. Special structures found on margins and tips of leaves made of parenchyma tissue and water pores through which guttation take place.
Answer : Option D
Explaination / Solution:
A hydathode is a type of secretory tissue in leaves, commonly found in angiosperms, that secretes water through pores in the epidermis or leaf margin, typically at the tip of a marginal tooth or serration.
Q3. Assertion: Ovule develops into mature seeds and ovary develops into fruits.
Reason: The fruits that develop only from ovary are called true fruits.
Reason: The fruits that develop only from ovary are called true fruits.
Answer : Option A
Explaination / Solution:
Ovule develops to form seeds and mature ovary develops into fruits. The fruits that develop only from ovary are called true fruits and those who contain other parts of flower are called false fruits.
Q4. Element present in middle lamella
Answer : Option C
Explaination / Solution:
Calcium is required by meristematic and differentiating tissues. During cell division it is used in the synthesis of cell wall, particularly as calcium pectate in the middle lamella.
Q5. Ovary develops into fruit which develops a thick protective wall called
Answer : Option C
Explaination / Solution:
After fertilisation ovule changes into seeds and ovary itself change into fruits. The outer hard integuments of ovary form protective layer of fruit called pericarp followed by mesocarp and endocarp.
Q6. First transitory biochemical produced in reaction between and RuBP is
Answer : Option A
Explaination / Solution:
First intermediate product produced in cycle of photosynthesis in presence of RUBP enzyme is 2-carboxy 3-keto 1,5-biphosphoribotol which change into two molecules of PGA.
Q7. A vascular cryptogam is
Answer : Option B
Explaination / Solution:
A Cryptogam is a plant that reproduce by spores without flowers or seeds .Most of cryptogamous plants lacks vascular bundles i.e xylem and phloem but some member of pteridophytes like Equisetum contain vascular bundle.
Q8. In our society women are blamed for producing female children as the growth and development of child occurs inside the mother womb. This statement is
Answer : Option B
Explaination / Solution:
Women are not responsible for sex of child because they produce only one kind of gamete containing X-sex chromosome, on the other hand male produce two kinds of sperms half containing X and half Y sex chromosome.
Q9. The correct sequential order of pathway is
Answer : Option A
Explaination / Solution:
There is a sequential, orderly pathway functioning, with one substrate forming the next and with glycolysis, TCA cycle and ETS pathway following one after another.
Q10. Which type of vascular bundle is shown in figure below
Answer : Option C
Explaination / Solution:
The vascular bundle shown below is closed and conjoint as cambium is absent between xylem and phloem tissue.
