8th Grade > Biology
CELL - STRUCTURE AND FUNCTION MCQs
Total Questions : 55
| Page 6 of 6 pages
Answer: Option B. ->
False
:
B
Cell walls are present in plants, bacteria, and fungi. Animal cells do not have a cell wall, they are bounded by the cell membrane alone. The cell wall is more rigid than the cell membrane and provides structural and mechanical support to cells. Cell walls also protect cells from the entry of pathogens.
:
B
Cell walls are present in plants, bacteria, and fungi. Animal cells do not have a cell wall, they are bounded by the cell membrane alone. The cell wall is more rigid than the cell membrane and provides structural and mechanical support to cells. Cell walls also protect cells from the entry of pathogens.
Answer: Option A. ->
Smooth Endoplasmic Reticulum
:
A
Lipids are synthesised by the Smooth Endoplasmic Reticulum (SER), while the Rough Endoplasmic Reticulum (RER) synthesises proteins with the help of ribosomes attached to them.
:
A
Lipids are synthesised by the Smooth Endoplasmic Reticulum (SER), while the Rough Endoplasmic Reticulum (RER) synthesises proteins with the help of ribosomes attached to them.
Answer: Option B. ->
Mitochondrion
:
B
:
B
The mitochondrion is called the "powerhouse of the cell" because it is responsible for producing energy-rich ATP molecules. Cells use ATP for all their energy needs.
Answer: Option B. ->
Protection against the pathogens.
:
A, B, and C
Lysosomes break down and digest food particles in a cell. They also help the cell to protect itself from pathogens, by forming a complex along with the pathogen, called phagolysosome. They also aid in recycling proteins and digesting worn-out cells. Hence, they are known as the 'suicidal bags'.
:
A, B, and C
Lysosomes break down and digest food particles in a cell. They also help the cell to protect itself from pathogens, by forming a complex along with the pathogen, called phagolysosome. They also aid in recycling proteins and digesting worn-out cells. Hence, they are known as the 'suicidal bags'.
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