Plastids

Q.

What will happen if we take a potted plant and keep it in the dark for one full day?

1. The plant will die within a few hours as it cannot produce food without sunlight.

2. The plant will become dormant, producing neither oxygen nor carbon dioxide.

3. The plant will use its stored food to obtain energy and survive.

4. The plant will perform only the dark reactions of photosynthesis

Q.

Write the name of different plant parts in which chromoplast, chloroplast, and leucoplast are present.

Q.

If some plants do not have chloroplast then what they have in the place of chloroplast?

Q.

Why chloroplast is called kitchen of the cell?

Q. Which among the following help plant cells to prepare their own food?

1. Chloroplast
2. Cytoplasm
3. Ribosome
4. Endoplasmic reticulum

Q.

Which of the following is true about chloroplasts?

1. It is bounded by a single membrane

2. It stores fat.

3. It has its own genetic material.

4. It produces energy-rich ATP molecules.

Q.

Which of the following plastids impart colour to fruits?

1. Chromoplast

2. Aleuroplast

3. Amyloplast

4. Leucoplast

Q. Potatoes are rich in starch. Which among the following organelles are specialised for the bulk storage of starch in potatoes?​

1. Ribosomes
2. Leucoplast
3. Chromoplast
4. Golgi bodies

Q.

Name the cell organelle responsible for photosynthesis.

Q.

Plastids are the organelles which have the green coloured pigments.

1. True

2. False

Q.

Which of the follwoing cell organelle can convert solar energy into chemical energy?

1. Chloroplast

2. Mitochondria

3. Ribosomes

4. Lysosomes

Q.

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

Q.

Why are toxins stored in vacuoles?

Q.

Which gas is released during photosynthesis

Q. The food is synthesized by plants from

पादप किससे अपना भोजन संश्लेषित करते हैं?

1. Glucose only
   
   केवल ग्लूकोस से
   
2. Oxygen and chlorophyll
   
   ऑक्सीजन तथा क्लोरोफिल से
3. Carbon dioxide and water
   
   कार्बन डाइऑक्साइड तथा जल से
4. Cellulose and water
   
   सेलूलोज तथा जल से
   

Q.

What are Plastids? Name its three types. Write the function of each.

Q.

Chromoplasts are the 'kitchen' of the cell.

1. False

2. True

Q.

Statement 1: The plastid that imparts a red colour to plants is xanthophyll.

Statement 2: Leucoplasts are colourless plastids.

Choose the correct option from the following.

1. Statement 1 is false and statement 2 is true.

2. Statement 1 is true and statement 2 is false

3. Both the statements are true.

4. Both the statements are false.

Q.

Name the products and byproducts produced during photosynthesis? What are they used for? [2 MARKS]

Q.

What are the functions of chromaplast, leucoplast and plastids in plant cell

Q. Write down the chemical equation for manufacture of food in green plants.

Q. How do the plants which have colored leaves do photosynthesis?

Q. Which of the following is necessary for photosynthesis?

1. Light
2. Sound
3. High temperature
4. High pressure

Q. Plastids containing chlorophyll are called as

1. Chlorocytes
2. Chlorotids
3. Chloroplasts
4. Chromoplasts

Q. Which of the following plastids contain chlorophyll

1. Chromoplasts
2. Leucoplasts
3. Chloroplast
4. None of the above

Q. Leaves appear green because they reflect green color from light spectrum. The part in the leaf that is responsible for the reflection is

1. Stroma
2. Inner membrane of Chloroplast
3. Thylakoid space
4. Thylakoid membrane

Q. The factory for synthesis of sugars in autotrophic eukaryotes is

1. Chloroplast
2. Mitochondrion
3. Endoplasmic reticulum
4. Ribosome

Q.

What are mitochondria?

Q.

The process by which plants produce complex organic compounds from simple substances like light, water and carbon dioxide is called __.

Q. Photosynthesis occurs mainly in which of the following?

1. The cuticle
2. Epidermal cell
3. Mesophyll cell
4. Vascular bundle cell