Plant Nutrition

Q.

What is the function of the chloroplast?

Q. Which of the following plant(s) grow in nitrogen-deficient soil?

1. Pea
2. Rafflesia
3. Pitcher
4. Cuscuta

Q.

The rate of photosynthesis is highest in

1. Red light

2. Blue light

3. Green light

4. Polychromatic light

Q.

Photosynthetic pigments found in the chloroplast occur in

1. Thylakoid membranes

2. Plastoglobules

3. Matrix

4. Chloroplast envelope

Q.

Question 15
Sunlight, chlorophyll, carbon dioxide, water and minerals are raw materials essential for photosynthesis. Do you know where they are available? Fill in the blanks with the appropriate raw materials.

(a) Available in the plant: __

(b) Available in the soil: __, __

(c) Available in the air: __

(d) Available during day: __

Q.

Write a detailed note on how plants prepare its own food. [5 MARKS]

Q.

Plants need sunlight . But if we give light of torch for a longer time . Is there is any growth of plant by getting torch light. If yes, give reason.

Q. The cell organelle where photosynthesis occurs is

1. Chlorophyll
2. Chloroplast
3. Thylakoid
4. Mesophyll

Q.

Chlorophyll molecules arranged at the thylakoid membrane.

1. True
2. False

Q. The grana and stroma lamellae are the parts of

1. Mitochondria.
2. Chloroplast.
3. Ribosomes.
4. Golgi bodies.

Q.

The process, by which green plants prepare their own food is known as:

1. Photosynthesis

2. Respiration

3. Symbiosis

4. None of these

Q. Which of the following wavelengths of light is absorbed maximum for photosynthesis process?

1. Red light
2. Blue light
3. Green light
4. Yellow light

Q. How does photolithoautotrophic bacteria obtain CO2 for food synthesis?

Q. The wavelength of light which is absorbed maximum, for the process of photosynthesis is

1. Red light.
2. Yellow light.
3. Blue light.
4. Green light.

Q. During photosynthesis, the site of carbohydrate formation is

1. Mitochondria
2. Peroxisomes
3. In the grana of chloroplast
4. In the stroma of chloroplast
5. None of the above

Q. Photosynthetic pigments in chloroplast are embedded in the membrane of

1. Thylakoids
2. Phytochrome
3. Matrix
4. Envelope of chloroplast

Q. About how much of solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis?

1. 1%
2. 10%
3. 30%
4. 50%

Q. What will happen to the rate of photosynthesis if good manuring is done in an area?

1. Rate increases
2. Rate decreases
3. Rate fluctuates
4. Rate remains unchanged

Q. Which of the following nutrients is fixed by rhizobium bacteria into the soil?

1. Calcium
2. Potassium
3. Nitrogen
4. Phosphorus

Q. The process which is adversely affected by the presence of oxygen is

1. Nitrogen fixation.
2. Photosynthesis.
3. Transpiration.
4. Respiration.

Q. Which of the following cell organelle contains chlorophyll?

1. Nucleus
2. Ribosome
3. Chloroplast
4. Mitochondria

Q. If a photosynthesising plant, releases oxygen containing more than the normal amount of ${}^{18}O$, it is concluded that the plant has been supplied with ______________.

1. $C_6{H}_{12}{O}_6$ containing ${}^{18}O$
2. $H_{2}O$ containing ${}^{18}O$
3. $C{O}_2$ containing ${}^{18}O$
4. Oxygen in the form of ozone

Q. Which light is absorbed maximum during photosynthesis?

1. Red light
2. Blue light
3. Green light
4. Violet light

Q. Fill in the blanks of the paragraph given below with the words provided in the box.
Chlorophyll, energy, food, carbon dioxide, water, photosynthesis
Note: A word can be used more than once.
Leaves have a green pigment called ___(a)___ which captures ____(b)___ from sunlight. This ___(c)___ is used in the process of ____(d)____ and along with other raw materials like ____(e)____ and ____(f)____ synthesize ____(g)____.

Q. Which of the following processes does not contribute to the $C{O}_2$ pool in the atmosphere?

1. Respiration by producers
2. Decomposition by decomposers
3. Photosynthesis by producers
4. Respiration by consumers

Q. Which of the following plants have parasitic mode of nutrition?

1. Mushroom
2. Pitcher
3. Cuscuta
4. Lichen

Q. is one of the primary nutrients required by plants.

1. Nitrogen
2. Iron
3. Calcium

Q. Identify the important nutrients required by crops.

1. Calcium
2. Magnesium
3. Nitrogen
4. Arsenic
5. Phosphorus
6. Potassium
7. Iron
8. Sodium
9. Gold
10. Chlorine