Cell Biology Quiz
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Questions and Answers

What is the primary function of organs in the body?

  • To perform specific functions (correct)
  • To generate heat for the body
  • To store energy for later use
  • To produce hormones exclusively

Which of the following correctly describes an organelle?

  • A group of cells functioning together
  • A tissue made of similar cells
  • A part of a cell with a specific function (correct)
  • An independent living unit

What defines a unicellular organism?

  • It consists of multiple cells working together
  • It is made of a single cell capable of basic functions (correct)
  • It only exists in multicellular forms
  • It can only perform complex functions

What is the meaning of selective permeability in cell biology?

<p>Only specific molecules can enter or exit a cell (D)</p> Signup and view all the answers

In which type of cells are chloroplasts typically found?

<p>Plant cells (C)</p> Signup and view all the answers

What is the primary function of mitochondria in an animal cell?

<p>To create energy for the cell (B)</p> Signup and view all the answers

Which of the following statements is a principle of cell theory?

<p>All living things are composed of one or more cells. (C)</p> Signup and view all the answers

What role does the cell membrane play in an animal cell?

<p>It controls the movement of substances in and out of the cell. (A)</p> Signup and view all the answers

What is the jelly-like solution that fills each cell referred to as?

<p>Cytoplasm (A)</p> Signup and view all the answers

Which of the following best describes a multicellular organism?

<p>An organism that uses two or more cells to function (D)</p> Signup and view all the answers

Flashcards

What is a cell?

The basic unit of life, which is a small part of any living thing, and often cannot be seen without a microscope.

What is cytoplasm?

A jelly-like substance that fills the cell and is mostly water.

What is diffusion?

The process where particles move from a crowded area to a less crowded area.

What is the cell membrane?

The thin layer that surrounds and protects the cell, like a skin.

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What are mitochondria?

The powerhouse of the cell! It creates energy that the cell needs to function.

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What is an organ?

Multiple tissues working together to perform a specific function in an organism. Examples include the heart, lungs, and eyes.

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What are organelles?

Parts within a cell that have specific jobs and functions. Examples include the nucleus, mitochondria, and cytoplasm.

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What is osmosis?

The movement of water across a cell membrane from an area of high concentration to an area of low concentration.

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What is selective permeability?

The cell membrane allows only certain molecules to pass through it. Some molecules go in, while others are kept out.

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What is tissue?

A group of similar cells that work together to perform a specific function. The four main types are epithelial, connective, muscular, and nervous.

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