Biology ยท Science General

Cell Biology and Structure

3,221 Questions

Cell biology focuses on the structure and function of cellular organelles. Key topics include cellular respiration, DNA inheritance, and energy production. These fundamental biology concepts are crucial for medical entrance and state service examinations.

Cell organelles functionsCellular respiration sitesDNA and ribosomesAnimal cell structurePlant cell components

Cell Biology and Structure Questions

Multiple choice

What is the function of the endoplasmic reticulum in a cell?

  1. Produces proteins

  2. Stores the cell's DNA

  3. Produces ribosomes

  4. Controls the cell's activities
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The endoplasmic reticulum produces proteins.

Multiple choice

What is the function of the lysosomes in a cell?

  1. Digests waste materials

  2. Stores the cell's DNA

  3. Produces ribosomes

  4. Controls the cell's activities
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The lysosomes digest waste materials.

Multiple choice

What is the function of the centrioles in a cell?

  1. Help the cell divide

  2. Stores the cell's DNA

  3. Produces ribosomes

  4. Controls the cell's activities
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The centrioles help the cell divide.

Multiple choice

What is the function of the vacuoles in a cell?

  1. Stores food and water

  2. Stores the cell's DNA

  3. Produces ribosomes

  4. Controls the cell's activities
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The vacuoles store food and water.

Multiple choice

What is the function of the cell membrane in a cell?

  1. Controls what enters and leaves the cell

  2. Stores the cell's DNA

  3. Produces ribosomes

  4. Controls the cell's activities
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The cell membrane controls what enters and leaves the cell.

Multiple choice

What is the function of the cytoplasm in a cell?

  1. Contains the cell's organelles

  2. Stores the cell's DNA

  3. Produces ribosomes

  4. Controls the cell's activities
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The cytoplasm contains the cell's organelles.

Multiple choice

What is the function of the nucleus in a cell?

  1. Controls the cell's activities

  2. Stores the cell's DNA

  3. Produces ribosomes

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The nucleus controls the cell's activities, stores the cell's DNA, and produces ribosomes.

Multiple choice

What is the primary mechanism of action of growth hormone?

  1. Stimulates protein synthesis

  2. Inhibits protein synthesis

  3. Increases glucose uptake by cells

  4. Decreases glucose uptake by cells
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Growth hormone stimulates protein synthesis and promotes growth.

Multiple choice

Which of the following is NOT a type of cerebellar neuron?

  1. Purkinje cells

  2. Granule cells

  3. Golgi cells

  4. Astrocytes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Astrocytes are not neurons, but rather a type of glial cell found in the cerebellum and other parts of the brain.

Multiple choice

Which mathematical society publishes the journal (\text{Molecular Biology of the Cell})?

  1. American Society for Cell Biology

  2. Genetics Society of America

  3. Ecological Society of America

  4. Institute of Mathematical Statistics
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The American Society for Cell Biology (ASCB) publishes the journal (\text{Molecular Biology of the Cell}).

Multiple choice

Which of the following is NOT a type of animal tissue?

  1. Epithelial tissue

  2. Connective tissue

  3. Muscle tissue

  4. Nervous tissue
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nervous tissue is not a type of animal tissue, but rather a type of specialized tissue that makes up the nervous system.

Multiple choice

In biology, topology is used to study the structure and properties of which biological objects?

  1. Cells

  2. Proteins

  3. DNA

  4. Organs
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Topology is used in biology to study the structure and properties of proteins, including their folding patterns and interactions with other molecules.

Multiple choice

What is the term used to describe meat produced from animal cells grown in a laboratory setting?

  1. Cellular Meat

  2. Cultured Meat

  3. In Vitro Meat

  4. Artificial Meat
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cellular meat, also known as cultured meat or in vitro meat, refers to meat produced by growing animal cells in a controlled environment, without the need for raising and slaughtering animals.

Multiple choice

What is angiogenesis?

  1. The formation of new blood vessels

  2. The breakdown of blood vessels

  3. The migration of cells from one location to another

  4. The differentiation of cells into specialized cell types
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Angiogenesis is the formation of new blood vessels. It is essential for tumor growth and metastasis, as it provides the tumor with nutrients and oxygen.

Multiple choice

What is metastasis?

  1. The spread of cancer cells from one location to another

  2. The growth of new tumors in the same location

  3. The shrinkage of tumors

  4. The differentiation of tumors into benign tumors
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metastasis is the spread of cancer cells from one location to another. It is the most common cause of death from cancer.