Class 5 EVS Chapter 5 HOTS Questions - Seeds and Seeds

Q1: Has the doctor or someone you know ever told you to eat sprouts? Why?
Ans: Yes, doctor has advised me to eat sprouts because they are very nutritious.

Q2: State whether the following statements are true or false.
A dry pea seed will have more dry weight than a germinated one.
(a) True
(b) False
Ans: (a)
The dry seeds of the pea have more dry weight as all the moisture in the seeds got absorbed and becomes hard due to the loss of water.
In the germinated seed, more water is present so its fresh weight will be higher than the dry seed. Fresh weight is the weight of the living part of the plant while dry weight is the weight of the dry plant part.
So, the correct statement is 'True'.

Q3: In which of the following condition seeds do not sprout?
(a) Seeds kept in air tight container
(b) Seeds kept in moist cotton cloth
(c) Seeds kept in water bowl
(d) All of the above
Ans: (a)
Sprouting is the germination of seed. Conditions required for germination of seed are air and water. Nutrients are already present in the cotyledons which are used by the upcoming seedling to germinate.
In an airtight jar, there is not enough oxygen for the seed to actively respire and provide energy for germination.
So, the correct answer is option A.

Q4: Which of the following seed is not used as a sprout?
(a) Chana
(b) Masoor
(c) Moong
(d) Sesame
Ans: (d)
Sesame or Til seeds are not used as sprouts, while Chana (chick pea), Masoor (red lentil) and Moong are used as sprouts.

Q5: ______ is the most important factor required for the seeds to sprout.
(a) Temperature
(b) Moisture
(c) Humidity
(d) Air
Ans: (b)
There are several external factors required for the seeds to sprout such as temperature, moisture or water, air, and light.
Out of all these factors, the most important factor is moisture. Germination of sprout does not take place without water. Water is absorbed by the seed and it softens the seed coat. It increases the permeability which in turn helps in gaseous exchange.
Thus, the correct answer is option B.

Q6: Coconut fruit is dispersed by:
(a) Man
(b) Wind
(c) Birds
(d) Water
Ans: (d)
Coconut fruit develops fibrous mesocarp which provides buoyancy to fruit and help in its dispersal through the water. Coconut trees usually grown in water logged saline sea shore areas.

Q7: Assertion: Human travellers also disperse seeds and fruits.
Reason: Generally, seeds of economically important crops are introduced to new areas.
(a) Both the assertion and the reason are true and the reason is a correct explanation of the assertion
(b) Both the assertion and reason are true but the reason is not a correct explanation of the assertion
(c) The assertion is true but the reason is false
(d) Both the assertion and reason are false'
Ans: (b)
Human travellers have always taken plants from one area to another. The potato was brought from the New World by the Portuguese.
Many economically important crops and plants such as maize, tobacco, groundnut, chillies, tea, cabbage, cauliflower, rubber etc. are dispersed by man, as they have been introduced to new areas from their original home.
However, many weeds are also dispersed along with useful plants.
So the correct answer is 'Both the assertion and reason are true but the reason is not a correct explanation of the assertion'.

Q8: Describe the pitcher plant.
Ans: The pitcher plant is a type of hunting plant. Hunting plants are known as insectivorous plants. These plants trap and eat frogs, insects, and even mice. The pitcher plant is a type of hunting plant. It has a prey-trapping process by which it traps the insects inside and the insects cannot come out.

Q9: The process by which seeds germinate is called as:
(a) Soaking
(b) Sprouting
(c) Dormancy
(d) None of the above
Ans: (b)
Germination is the process by which an organism grows from a seed. The most common example of germination is the sprouting of a seedling from a seed. Germinated seeds (sprouts) can even be eaten raw or can be consumed after cooking.
So, the answer is option B.

Q10: Which of the following seeds are used as spices?
(a) Cumin
(b) Mustard
(c) Fenugreek
(d) All of the above
Ans: (d)
Spices are considered to be the root, stem, leaves or seed of a plant that are mainly used for the flavoring of food in a different manner in different areas and have some medicinal values as well.
Example of spices is cumin, mustard, fenugreek, etc. In these examples seed of the plant is used as spice.
So the correct option is D.