Tag: evs

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Questions Related to evs

Multiple choice evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

Sense of smell helps you to get the complete taste of food.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Specific chemicals in solution pass into the taste bud through the taste pore to come in contact with the protein receptor sites on the microvilli of the gustatory receptor cells.
  • The latter set up nerve impulses in the sensory nerve fibers. The nerve fibers transmit the impulses to the taste center in the brain where the sensation of taste arises.
  • The facial nerve serves the anterior two-thirds of the tongue, the glossopharyngeal nerve serves the posterior one-third of the tongue. 

So, the correct answer is 'True'.
Multiple choice evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

The taste of jaggery is  

  1. Sour

  2. Bitter

  3. Sweet

  4. Salty
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A. Sour occupies the sides of the tongue and detects acidity like in lemon, orange, grape.
B. Bitter occupies the base of the tongue and detects unpleasantness like in caffeine, nicotine, bitter gourd.
C. Sweet occupies tip of the tongue and detects sugars like jaggery.
D. Salty occupies tips and sides of the tongue and detects sodium chloride. 
So, the correct answer is 'Sweet'.
Multiple choice evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

Tomato is a juicy fruit which tastes sweet and sour.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • Tomato juice's earthy flavour at normal pressure, with cabin pressure it becomes sweeter, fruity, even. 
  • Additionally, tomatoes are rich in flavour known as umami, a taste that is thought of by most as very savoury and pleasant. Hence, Tomato is a juicy fruit which tastes sweet and sour.
So, the correct answer is 'true'.

Multiple choice evs developmental journey of seed seed to plants germination of seeds life within the seed introduction to plant organs and germination

Germination of the seed is promoted by.

  1. Green light

  2. Red light

  3. Blue light

  4. Infra red light
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Seed germination in many photoblastic seeds is promoted by red light, which is absorbed by the active form of phytochrome, Pfr. Far-red light typically inhibits or reverses this germination process.

Multiple choice evs developmental journey of seed seed to plants germination of seeds life within the seed introduction to plant organs and germination

Renu soaked some moong seeds overnight in water. Next day, after draining out the water, she wrapped the seeds in a wet cloth. After a day, she observed small white structures growing out of the seeds. These small white structures will develop into

  1. Stems

  2. Roots

  3. Leaves

  4. Flowers
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sprouts develop in the pulses or grain under humid environment with adequate amount of water fasten the process of germination and Roots comes out.

So the correct option is 'Roots'.

Multiple choice evs developmental journey of seed seed to plants germination of seeds life within the seed introduction to plant organs and germination

Which of the following is a step which is involved in seed germination?

  1. Absorption of Water

  2. Absorption of Carbon Dioxide

  3. Absorption of Light

  4. All the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Germination is the process of seeds developing into new plants. First, environmental conditions must trigger the seed to grow.

  1.  When water is plentiful, the seed fills with water in a process called imbibition. The water activates special proteins, called enzymes, that begin the process of seed growth. 
  2.  The seed grows a root to access water underground. 
  3. The shoot appears above ground. 

The seed sends a shoot towards the surface, where it will grow leaves to make food that provides energy. 
The leaves continue to grow towards the light source in a process called photomorphogenesis.
So the correct option is 'Absorption of Water'

Multiple choice evs developmental journey of seed seed to plants germination of seeds life within the seed introduction to plant organs and germination

Sprouting of potatoes while in storage can be prevented by _________________.

  1. Treatment with low concentrations of urea

  2. Treatment with low concentrations of naphthalene acetic acid

  3. Treatment with low concentrations of nicotinamide

  4. Exposure of sunlight and storage at low temperatures
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Low concentrations of urea are known to inhibit the sprouting of potatoes in storage by affecting the physiological processes that trigger dormancy break.

Multiple choice evs developmental journey of seed seed to plants germination of seeds life within the seed introduction to plant organs and germination

In germinating oil seeds beta-oxidation of free fatty acids takes place in the _____________.

  1. Oleosomes

  2. Glyoxysomes

  3. Mitochondria

  4. Lysosomes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In germinating oil seeds, stored lipids are converted into carbohydrates via the glyoxylate cycle. This pathway specifically takes place inside specialized microbodies known as glyoxysomes.

Multiple choice evs developmental journey of seed seed to plants germination of seeds life within the seed introduction to plant organs and germination

State whether the following statements are true or false.
Oxygen is not necessary for seed germination;

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Aerobic respiration is respiration which occurs in the presence of oxygen. Aeration is the main phenomenon which helps in the germination of seed. Oxygen is absorbed by the cells which later gets transformed into energy for future uses. For better germination of seeds require oxygen, water, sunlight, and temperature.

So, the correct statement is 'True'.

Multiple choice evs developmental journey of seed seed to plants germination of seeds life within the seed introduction to plant organs and germination

Choose the correct answer from the alternatives given.
Seed germination is over when the:

  1. embryo sporophyte absorbs water

  2. embryo sporophyte resumes growth

  3. primary root pokes out of the seed coat

  4. cotyledons unfurl
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In summary, seed germination is the process of a fertilized plant ovary, or seed, developing into a mature plant. Seed germination starts with imbibition when the seed takes in water from the soil. This triggers root growth to allow the seed to get more water.

So, the correct option is 'primary root pokes out of the seed coat'.