Agriculture - Online Test
Q1. In grafting, scion forms
Answer : Option C
Explaination / Solution:
In grafting, scion forms the upper shoot system and stock forms the lower root system. Grafting is an artificial mode of vegetative propagation in which two plants are cut and same height and joined together.
Q2. In mosses, the sex organs are arise from
Answer : Option B
Explaination / Solution:
In sexual reproduction, the sex organs antheridia and archegonia are produced at the apex of the leafy shoots.
Q3. plants respond to higher concentration leads to
Answer : Option A
Explaination / Solution:
The fact that plants respond to higher concentration byshowing increased rates of photosynthesis leading to higher productivity .They are allowed to grow in carbon dioxide enriched atmosphere that leads to higher yields.
Q4.
What does the chart given below represent?
Answer : Option D
Explaination / Solution:
The chart given below represent XX-XO type of sex determination in which XX forms the female and XO develops as male. It is common in birds.
Q5. During anaerobic respiration less energy is produced than aerobic respiration because
Answer : Option A
Explaination / Solution:
During anaerobic respiration, incomplete oxidation of glucose takes place but during aerobic respiration complete oxidation of glucose occurs in which less energy is produced.
Q6. Vascular bundles in which cambium is present between xylem and phloem is called as
Answer : Option A
Explaination / Solution:
Vascular bundles in which cambium is present between xylem and phloem is called open vascular bundles and those in which cambium is absent is called closed vascular bundles.
Q7. Phytochrome is sensitive to
Answer : Option C
Explaination / Solution:
Phytochrome is a photoreceptor and a pigment that plants, and some bacteria and fungi, use to detect light. It is sensitive to light in the red and far-red region of the visible spectrum.
Q8. The parietal placentation is seen in
Answer : Option A
Explaination / Solution:
In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part. Ovary is one-chambered but it becomes two chambered due to the formation of the false septum, e.g., mustard and Argemone.
Q9. The ingredient not used for preserving food stuff is
Answer : Option A
Explaination / Solution:
For preserving food stuff vinegar, salt and sugar is used. Ethanol is antiseptic in nature but not used for preserving food stuff.
Q10. The mature seed that do not contain residual endosperm is called
Answer : Option B
Explaination / Solution:
The mature seeds may contain residual endosperm or get endosperm consumed completely during the embryological development. The seeds without endosperm are called non-albuminous seeds.
