Biology Chapter on Cell Structure and Function
35 Questions
14 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is one feature that distinguishes eukaryotic cells from prokaryotic cells?

  • Eukaryotic cells lack a defined nucleus.
  • Eukaryotic cells can reproduce independently.
  • Eukaryotic cells have organelles. (correct)
  • Eukaryotic cells are smaller in size.

Which statement is part of the cell theory?

  • All cells contain identical genetic material.
  • Cells arise from the spontaneous generation of matter.
  • All living things are composed of cells. (correct)
  • Cells are the only unit of structure in living organisms.

How does the shape-changing ability of white blood cells enhance their function?

  • It prevents them from being attacked by pathogens.
  • It allows them to absorb nutrients more efficiently.
  • It enables them to move through narrow openings. (correct)
  • It helps them to clone themselves.

What do organelles within a cell primarily provide?

<p>Specific functions necessary for survival. (C)</p> Signup and view all the answers

When the diameter of a spherical cell increases, how does this affect its surface area and volume?

<p>Volume changes more than surface area. (A)</p> Signup and view all the answers

Which structures are responsible for the movement of substances across the surface of the cell?

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

What is the primary function of lysosomes in a eukaryotic cell?

<p>Digest ingested material (C)</p> Signup and view all the answers

Which of the following organelles is surrounded by two membranes and contains its own DNA?

<p>Nucleus (D)</p> Signup and view all the answers

Which cell organelle is primarily involved in the export of substances produced within the cell?

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

In eukaryotic cells, which organelles are known as the powerhouse for energy production?

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

What is an organele?

<p>A compartment or sac within a cell (B)</p> Signup and view all the answers

What limits the size of cells?

<p>The rate at which substances can enter the cell (B)</p> Signup and view all the answers

What is the typical diameter range of most plant and animal cells?

<p>10 to 50 µm (C)</p> Signup and view all the answers

Which characteristic of nerve cells enables them to effectively transmit signals?

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

Which of the following is true regarding eukaryotic and prokaryotic cells?

<p>Only eukaryotic cells have membrane-bound organelles (B)</p> Signup and view all the answers

What are the two major components of the cytoskeleton?

<p>Microfilaments and microtubules (B)</p> Signup and view all the answers

What substance composes plant cell walls?

<p>Cellulose (D)</p> Signup and view all the answers

What is the primary role of ribosomes in the cell?

<p>Synthesizing proteins (D)</p> Signup and view all the answers

What structural feature do cilia and flagella share?

<p>A hairlike structure (B)</p> Signup and view all the answers

How do membrane proteins contribute to the cell membrane's function?

<p>By making the membrane selectively permeable (D)</p> Signup and view all the answers

What group of cells forms the surface coverings of animal bodies?

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

Which type of tissue is responsible for transporting water in plants?

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

Fossil evidence indicates that the earliest cells on Earth were primarily what type?

<p>simple prokaryotes (B)</p> Signup and view all the answers

What is the term for the process in which cells become restricted to perform one or a few functions?

<p>specialization (D)</p> Signup and view all the answers

Which statement is true about the cells in the green alga Volvox?

<p>They are genetically identical. (D)</p> Signup and view all the answers

What level of organization is exemplified by the stomach?

<p>Organ (D)</p> Signup and view all the answers

What is the main function of connective tissue in the body?

<p>Providing support and linking other tissues (A)</p> Signup and view all the answers

Which of the following best describes the esophagus, stomach, and intestine together?

<p>Organ system (B)</p> Signup and view all the answers

What do the structures in the inset represent?

<p>Tissues (D)</p> Signup and view all the answers

Which of the following best identifies the stomach in terms of biological organization?

<p>Organ (D)</p> Signup and view all the answers

In terms of biological structures, what is a lichen considered?

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

The group of the esophagus, stomach, and intestines can be classified as which level of organization?

<p>Organ system (D)</p> Signup and view all the answers

Which type of animal tissue is primarily responsible for supporting and linking other tissues?

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

What type of tissue is primarily responsible for transmitting messages in the body?

<p>Nervous tissue (B)</p> Signup and view all the answers

The structures within the inset that show different layers of the stomach wall represent which level of biological organization?

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

Flashcards

Eukaryote cell

A cell with a nucleus and other membrane-bound organelles.

Prokaryote cell

A cell without a nucleus or other membrane-bound organelles.

Cell size limit

Limited by the rate of substance entry through the cell surface.

Nerve cell extensions

Important for receiving and transmitting nerve impulses.

Signup and view all the flashcards

Cell theory evidence

Cells come from pre-existing cells.

Signup and view all the flashcards

Cell Theory Parts

All living things are made of cells, cells are the basic unit of structure and function, and cells come from other cells.

Signup and view all the flashcards

White Blood Cell Shape Change

White blood cells can change shape to move through narrow spaces and destroy harmful things like bacteria or viruses.

Signup and view all the flashcards

Organelle vs. Organ

Organelles in a single cell perform specific jobs like organs in a multicellular organism.

Signup and view all the flashcards

Eukaryotic Cell Features

Eukaryotic cells have organelles and a nucleus, while prokaryotic cells do not.

Signup and view all the flashcards

Cell Size Change (Surface Area/Volume)

If a cell's diameter increases, its surface area increases, but its volume increases even more. This impacts the cell's ability to exchange materials with its environment.

Signup and view all the flashcards

Selective Permeability

The ability of a cell membrane to allow certain substances to pass through while blocking others.

Signup and view all the flashcards

Ribosomes - What are they made of?

Ribosomes are made up of ribosomal RNA (rRNA) and proteins.

Signup and view all the flashcards

Cytoskeleton - What is it?

The cytoskeleton is a network of protein fibers that provides structural support and helps with cell movement.

Signup and view all the flashcards

Cilia and Flagella - Structure

Cilia and flagella are hair-like structures that extend from the cell surface. They are composed of microtubules arranged in a 9 + 2 pattern.

Signup and view all the flashcards

Plant Cell Walls - Function

Plant cell walls are made of cellulose and provide structural support, protection, and help regulate water intake.

Signup and view all the flashcards

Peripheral Protein

A protein loosely attached to the surface of the cell membrane. It can be easily removed without disrupting the membrane structure.

Signup and view all the flashcards

Integral Protein

A protein embedded within the cell membrane, spanning its entire width. It is tightly bound and requires special methods to be removed.

Signup and view all the flashcards

Cytoplasm

The entire region of the cell inside the cell membrane, containing the cytosol and organelles.

Signup and view all the flashcards

Cytosol

The fluid portion of the cytoplasm excluding the organelles.

Signup and view all the flashcards

Cilia vs. Flagella

Cilia are short, numerous, hair-like structures that help move fluids or particles. Flagella are long, whip-like structures that propel the cell.

Signup and view all the flashcards

Animal Tissue

A group of similar cells that work together as one unit, performing a specific function.

Signup and view all the flashcards

Animal Organ

A part of an organism that performs a vital function.

Signup and view all the flashcards

Animal Organ System

A group of organs working together to carry out a common function.

Signup and view all the flashcards

Colonial Organism

A group of identical cells that live together as a colony.

Signup and view all the flashcards

Specialization

The process where cells become restricted to one or a few specific functions.

Signup and view all the flashcards

Organ

A structure made of different tissues working together to perform a specific function.

Signup and view all the flashcards

Organ System

A group of organs that work together to perform a major bodily function.

Signup and view all the flashcards

Tissue

A group of similar cells working together to perform a specific function.

Signup and view all the flashcards

Connective Tissue

Tissue that supports and connects other tissues, providing structure and cushioning.

Signup and view all the flashcards

Nervous Tissue

Tissue that transmits signals rapidly throughout the body.

Signup and view all the flashcards

More Like This

The Incredible World of Cells
5 questions
Exploring Eukaryotic Cell Structure Quiz
24 questions
Use Quizgecko on...
Browser
Browser