Plastids
BIOXI08: CELL-THE UNIT OF LIFE

335232 A plant suspension was prepared by grinding up plant material. The component parts were then separated via centrifugation. At the end of this process, there was a layer of sediment at the bottom of the test tube covered by an aqueous solution, organelles found in the sediment took up carbon dioxide and produced oxygen when illuminated. The organelles are likely to be

1 Chloroplast
2 Ribosomes
3 Nuclei
4 Endoplasmic reticulum
BIOXI08: CELL-THE UNIT OF LIFE

335233 Carefully observe the given diagram and select the correct option
I. It is found in all plant cells and in euglenoides.
II. It contains chlorophyll and carotenoid pigments.
III. Its number in one mesophyll cell is 20-40.
IV. It also contains small, double stranded circular DNA molecule and ribosomes.
V. Its ribosomes are larger (80S) than the cytoplasmic ribosomes (70S).
supporting img

1 II, III, IV only
2 I, II, IV only
3 I, II, III, IV only
4 All of these
BIOXI08: CELL-THE UNIT OF LIFE

335234 Assertion :
Mitochondria and Chloroplasts are semiautonomous organelles.
Reason :
They are formed by division of pre-existing organelles as well as contain DNA but lack protein synthesizing machinery.

1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false
BIOXI08: CELL-THE UNIT OF LIFE

335235 Flattened membranous sacs present in the stroma of chloroplast are

1 Thylakoids
2 Grana
3 Mesophyll
4 Stroma lamella
BIOXI08: CELL-THE UNIT OF LIFE

335232 A plant suspension was prepared by grinding up plant material. The component parts were then separated via centrifugation. At the end of this process, there was a layer of sediment at the bottom of the test tube covered by an aqueous solution, organelles found in the sediment took up carbon dioxide and produced oxygen when illuminated. The organelles are likely to be

1 Chloroplast
2 Ribosomes
3 Nuclei
4 Endoplasmic reticulum
BIOXI08: CELL-THE UNIT OF LIFE

335233 Carefully observe the given diagram and select the correct option
I. It is found in all plant cells and in euglenoides.
II. It contains chlorophyll and carotenoid pigments.
III. Its number in one mesophyll cell is 20-40.
IV. It also contains small, double stranded circular DNA molecule and ribosomes.
V. Its ribosomes are larger (80S) than the cytoplasmic ribosomes (70S).
supporting img

1 II, III, IV only
2 I, II, IV only
3 I, II, III, IV only
4 All of these
BIOXI08: CELL-THE UNIT OF LIFE

335234 Assertion :
Mitochondria and Chloroplasts are semiautonomous organelles.
Reason :
They are formed by division of pre-existing organelles as well as contain DNA but lack protein synthesizing machinery.

1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false
BIOXI08: CELL-THE UNIT OF LIFE

335235 Flattened membranous sacs present in the stroma of chloroplast are

1 Thylakoids
2 Grana
3 Mesophyll
4 Stroma lamella
BIOXI08: CELL-THE UNIT OF LIFE

335232 A plant suspension was prepared by grinding up plant material. The component parts were then separated via centrifugation. At the end of this process, there was a layer of sediment at the bottom of the test tube covered by an aqueous solution, organelles found in the sediment took up carbon dioxide and produced oxygen when illuminated. The organelles are likely to be

1 Chloroplast
2 Ribosomes
3 Nuclei
4 Endoplasmic reticulum
BIOXI08: CELL-THE UNIT OF LIFE

335233 Carefully observe the given diagram and select the correct option
I. It is found in all plant cells and in euglenoides.
II. It contains chlorophyll and carotenoid pigments.
III. Its number in one mesophyll cell is 20-40.
IV. It also contains small, double stranded circular DNA molecule and ribosomes.
V. Its ribosomes are larger (80S) than the cytoplasmic ribosomes (70S).
supporting img

1 II, III, IV only
2 I, II, IV only
3 I, II, III, IV only
4 All of these
BIOXI08: CELL-THE UNIT OF LIFE

335234 Assertion :
Mitochondria and Chloroplasts are semiautonomous organelles.
Reason :
They are formed by division of pre-existing organelles as well as contain DNA but lack protein synthesizing machinery.

1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false
BIOXI08: CELL-THE UNIT OF LIFE

335235 Flattened membranous sacs present in the stroma of chloroplast are

1 Thylakoids
2 Grana
3 Mesophyll
4 Stroma lamella
BIOXI08: CELL-THE UNIT OF LIFE

335232 A plant suspension was prepared by grinding up plant material. The component parts were then separated via centrifugation. At the end of this process, there was a layer of sediment at the bottom of the test tube covered by an aqueous solution, organelles found in the sediment took up carbon dioxide and produced oxygen when illuminated. The organelles are likely to be

1 Chloroplast
2 Ribosomes
3 Nuclei
4 Endoplasmic reticulum
BIOXI08: CELL-THE UNIT OF LIFE

335233 Carefully observe the given diagram and select the correct option
I. It is found in all plant cells and in euglenoides.
II. It contains chlorophyll and carotenoid pigments.
III. Its number in one mesophyll cell is 20-40.
IV. It also contains small, double stranded circular DNA molecule and ribosomes.
V. Its ribosomes are larger (80S) than the cytoplasmic ribosomes (70S).
supporting img

1 II, III, IV only
2 I, II, IV only
3 I, II, III, IV only
4 All of these
BIOXI08: CELL-THE UNIT OF LIFE

335234 Assertion :
Mitochondria and Chloroplasts are semiautonomous organelles.
Reason :
They are formed by division of pre-existing organelles as well as contain DNA but lack protein synthesizing machinery.

1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false
BIOXI08: CELL-THE UNIT OF LIFE

335235 Flattened membranous sacs present in the stroma of chloroplast are

1 Thylakoids
2 Grana
3 Mesophyll
4 Stroma lamella