Nutrients for Plant Growth

Q. What are plant nutrients

Q.

Amarbel is an example of:

1. autotroph

2. parasite

3. saprotroph

4. host

Q.

Write the word equation for photosynthesis in plants.

Q.

What are plant nutrients ? How are they replenished in the soil?

Q. Which blood cells are involved in blood clotting process?

1. Platelets
2. WBC
3. RBC
4. Plasma

Q.

Which of these is a macronutrient required by plants?

1. Zinc

2. Copper

3. Nitrogen

4. Chlorine

Q.

Plants require some nutrients in minute quantities. These are called __.

Q. ____ help in the absorption of water from the soil.

1. Leaves
2. Roots
3. Seeds
4. Fruits

Q. Statement 1: Plants cannot use atmospheric nitrogen directly.

Statement 2: Root nodules in the members of Dal family host rhizobium bacteria.

1. Only statement 1 is correct.
2. Only statement 2 is correct.
3. Both the statements are correct.
4. Both the statements are incorrect.

Q. How does trees on the fertile plain obtain their nurtients. Or the cacti in the deserts. Or the algae in the sea

Q. Pitcher plant traps insects because it _____________________.

1. has a digestive system like human beings
2. grows in soil which lack nitrogen
3. is a heterotroph
4. does not have chlorophyll

Q. X is a photosynthetic plant which lives in a symbiotic relationship with a bacteria Y. Y lives inside the root nodules of X. Identify X and Y.
[2 marks]
[Symbiotic Relationship]

1. X : Rose, Y : Yeast
2. X : Rose, Y : Rhizobium
3. X : Soy, Y : Yeast
4. X : Pea, Y : Rhizobium

Q. Why do pitcher plants feed on insects?

Q.

Bholu uses a technique called hydroponics to grow plants. Choose the option that best depicts the relative amount of nutrients that are to be added to the water. (A bigger circle means more amount and vice versa; if a circle is not present it means that the nutrient is not added ).

1. 

2. 

3. 

4. 

Q. ____ help in the absorption of water from the soil.

1. Leaves
2. Roots
3. Seeds
4. Fruits

Q. Choose the macronutrients from the following.

1. Iron
2. Nitrogen
3. Phosphorous
4. Manganese
5. Potassium
6. Calcium
7. Zinc
8. Magnesium

Q. ____ help in the absorption of water from the soil.

1. Leaves
2. Roots
3. Fruits
4. Seeds

Q. Statement 1: Plants cannot use atmospheric nitrogen directly.

Statement 2: Root nodules in the members of Dal family host rhizobium bacteria.

1. Only statement 1 is correct.
2. Only statement 2 is correct.
3. Both the statements are correct.
4. Both the statements are incorrect.

Q. Choose the correct statement with respect to photosynthesis.

1. Exchange of gases takes place through stomata
2. Water is not neccessary for photosynthesis process
3. Carbon dioxide is produced during photosynthesis
4. Roots are the organs of transpiration

Q. The nutrients required in small quantities for the plant growth are called .

Q. The ultimate source of energy for all living things is ________.

1. plants
2. algae
3. starch
4. sun

Q. Choose the correct option.
Statement 1: When iodine solution is added to leaves, a change in colour to blue-black indicates the presence of starch.

Statement 2: Chlorophyll is removed by boiling the leaf in alcohol in a waterbath.

1. Only statement 1 is correct.
2. Only statement 2 is correct.
3. Both the statements are correct.
4. Both the statements are incorrect.

Q. Statement 1: Insectivorous plants trap and eat insects to fulfil their nutrition.

Statement 2: Pitcher plant is an example of insectivorous plant.

1. Only statement 1 is correct.
2. Both the statements are incorrect.
3. Only statement 2 is correct.
4. Both the statements are correct.

Q. Statement [1]: Micronutrients are required in trace amount for plant growth.

Statement [2]: Nitrogen, phosphorus and potassium are macronutrients.

1. Only statement [1] is true.
2. Only statement [2] is true.
3. Both the statements are true.
4. Both the statements are false.

Q. The roots ofplants contain nodules where rhizobium lives and help in nitrogen fixation.

1. leguminous
2. cereal
3. palm

Q. Main nutrients required by plants for their growth are nitrogen, phosphorus and .