Read the following statements and find out the correct statements.
(a) The shape of cells may vary with the function they perform.
(b) The prokaryotic cells lack all membrane-bound organelles.
(c) Schleiden, a German botanist concluded, based on his studies on plant tissues, that the presence of cell walls is a unique character of the plant cells.
(d) Based on their studies on plants and animals, Schwann, a British Zoologist, proposed the hypothesis that the bodies of animals and plants are composed of cells and products of cells.
(e) Schleiden and Schwann modified the hypothesis of Rudolf Virchow and gave the cell theory a final shape.
Read the following statements and find out the correct statements.
(a) The shape of cells may vary with the function they perform.
(b) The prokaryotic cells lack all membrane-bound organelles.
(c) Schleiden, a German botanist concluded, based on his studies on plant tissues, that the presence of cell walls is a unique character of the plant cells.
(d) Based on their studies on plants and animals, Schwann, a British Zoologist, proposed the hypothesis that the bodies of animals and plants are composed of cells and products of cells.
(e) Schleiden and Schwann modified the hypothesis of Rudolf Virchow and gave the cell theory a final shape.
Correct statements
Statement(a): The shape of cells may vary with the function they perform.
The structure and shape of a cell determines the function that it carries out. For example, a neuron is elongated in shape and also possesses dendrites so that the transfer of an impulse is efficient. Columnar cells that bear cilia line the intestine to increase the efficiency of absorption.
Correct statements
Statement(b): The prokaryotic cells lack all membrane-bound organelles.
Prokaryotic cells are the primitive type of cells that lack all types of membrane-bound organelles such as the nucleus, mitochondrion, plastids, endoplasmic reticulum.
Correct statements
Statement(d): Based on their studies on plants and animals, Schwann, a British Zoologist, proposed the hypothesis that the bodies of animals and plants are composed of cells and products of cells.
Schwann was a zoologist who gave the hypothesis that plant and animal bodies are composed of cells and cell products. He proposed the Cell theory with his companion Schleiden.
Final answer:
(D) a,b,d
Correct statements
Statement(a): The shape of cells may vary with the function they perform.
The structure and shape of a cell determines the function that it carries out. For example, a neuron is elongated in shape and also possesses dendrites so that the transfer of an impulse is efficient. Columnar cells that bear cilia line the intestine to increase the efficiency of absorption.
Correct statements
Statement(b): The prokaryotic cells lack all membrane-bound organelles.
Prokaryotic cells are the primitive type of cells that lack all types of membrane-bound organelles such as the nucleus, mitochondrion, plastids, endoplasmic reticulum.
Correct statements
Statement(d): Based on their studies on plants and animals, Schwann, a British Zoologist, proposed the hypothesis that the bodies of animals and plants are composed of cells and products of cells.
Schwann was a zoologist who gave the hypothesis that plant and animal bodies are composed of cells and cell products. He proposed the Cell theory with his companion Schleiden.
Final answer:
(D) a,b,d
