Cell Structure and Function

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What is the basic unit of living things?

Organs
Atoms
Molecules
Cells (correct)

What are living things composed of?

Systems
Cells (correct)
Organs
Tissues

Which organisms consist of many cells and are called multicellular organisms?

Human (correct)
Yeast
Amoeba
Paramecium

What are unicellular organisms?

Organisms with a single cell (A) Signup and view all the answers

What is the main difference between unicellular and multicellular organisms?

$Number of cells$ in the organism (D) Signup and view all the answers

What is an example of a unicellular organism?

$Amoeba$ (D) Signup and view all the answers

What did Theodor Schwann and Matthias Schleiden contribute to the development of the cell theory?

They proposed that cells are the basic unit of life (A) Signup and view all the answers

What is a key difference between plant and animal cells?

Plant cells have a cell membrane, while animal cells have a cell wall (C) Signup and view all the answers

What defines eukaryotic and prokaryotic cells?

Presence of a nucleus and other membrane-bound organelles (D) Signup and view all the answers

Why do we study about cells?

To comprehend the basis of life and the processes that occur at the cellular level (A) Signup and view all the answers

What important biological activities take place in the cell?

Cooperative work of muscle cells for movement and nerve cells for gathering information (D) Signup and view all the answers

What is a result of the processes that occur at the cellular level in the human body?

Every action and thought possible due to cooperative work of muscle and nerve cells (C) Signup and view all the answers

Which structure is common to both plant and animal cells?

Nucleus (A) Signup and view all the answers

What is the function of the cell wall in a plant cell?

Provide structural support and shape to the cell (C) Signup and view all the answers

Which organelle is responsible for packaging of materials in a cell?

Golgi apparatus (B) Signup and view all the answers

What is the function of the cytoplasm in a cell?

Produce energy (C) Signup and view all the answers

Which structure is found external to the cell membrane in plant cells?

Cell wall (A) Signup and view all the answers

What is the function of the cell membrane?

To control the entry and exit of substances into and out of the cell (A) Signup and view all the answers

Where is the site for protein synthesis in a cell?

Ribosomes (B) Signup and view all the answers

What is the function of the nucleus in a cell?

To control cell division and protein synthesis (C) Signup and view all the answers

Which organelle is responsible for transporting materials throughout the cell?

Endoplasmic reticulum (A) Signup and view all the answers

What distinguishes the rough endoplasmic reticulum from the smooth endoplasmic reticulum?

The presence of ribosomes (B) Signup and view all the answers

Which cellular structure is responsible for synthesizing proteins?

Ribosomes (D) Signup and view all the answers

What is the main function of the cytoplasm in a cell?

To provide a fluid-filled region containing organelles (B) Signup and view all the answers

What is the primary role of the cell wall in plant cells?

To provide structural support to the cell (D) Signup and view all the answers

Which cellular component controls what enters into and leaves a cell?

Cell membrane (A) Signup and view all the answers

Where are chromosomes found in the cell?

Nucleus (C) Signup and view all the answers