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AP Biology Cell Structure — practice questions

Explore 62 free Cell Structure questions in AP Biology Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Cell Structure questions and exercises with answers

Showing questions 1–30 of 62.

All cells fall into one of two broad categories. They are eukaryotic and:Read the answer and worked solution →Which two domains of life are made up of prokaryotes?Read the answer and worked solution →Mitochondria are often called the powerhouses of the cell because they make:Read the answer and worked solution →A group of similar cells working together is called:Read the answer and worked solution →The three types of fibre that make up the cytoskeleton are microtubules, intermediate filaments and:Read the answer and worked solution →The stack of thylakoids inside a chloroplast is called:Read the answer and worked solution →Roughly what fraction of the cytoplasm is water?Read the answer and worked solution →Electron microscopes differ from light microscopes because they use a beam of:Read the answer and worked solution →As a cell grows larger, its surface area-to-volume ratio:Read the answer and worked solution →Of all shapes, the one with the smallest surface area-to-volume ratio is:Read the answer and worked solution →The nuclear envelope is built from:Read the answer and worked solution →Unwound protein and chromosome complexes inside the nucleus are called:Read the answer and worked solution →Inside a mitochondrion, the space surrounded by the folds of the inner membrane is the:Read the answer and worked solution →The rough endoplasmic reticulum gets its name from:Read the answer and worked solution →The receiving side of the Golgi apparatus is known as the:Read the answer and worked solution →The narrowest fibres of the cytoskeleton are the microfilaments, which are built from:Read the answer and worked solution →Junctions that connect neighbouring plant cells through the cell wall are called:Read the answer and worked solution →The material cells secrete around themselves, holding a tissue together, is the:Read the answer and worked solution →Structures found in plant cells but not in animal cells include chloroplasts, a large central vacuole and:Read the answer and worked solution →Which pair of structures is found in animal cells but generally not in plant cells?Read the answer and worked solution →Removing the centrosome from a cell shows that centrioles:Read the answer and worked solution →Lysosomes can digest material because their internal pH is:Read the answer and worked solution →A gap junction channel is built when six connexin proteins arrange into a structure called a:Read the answer and worked solution →The earliest fossil evidence for life on Earth, microbial mats, dates back about:Read the answer and worked solution →Plant cell, animal cell, or both?Read the answer and worked solution →Prokaryote or eukaryote?Read the answer and worked solution →Match each part to its jobRead the answer and worked solution →Which fibre is wider?Read the answer and worked solution →Follow a protein out of the cellRead the answer and worked solution →Why cells stay smallRead the answer and worked solution →

Worked practice questions

All cells fall into one of two broad categories. They are eukaryotic and:

  1. Autotrophic
  2. Prokaryotic
  3. Heterotrophic
  4. Photosynthetic
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Correct answer: B. Prokaryotic

1. Cells are grouped by whether their genetic material sits inside a membrane-bound nucleus. 2. There are many types of cells, all grouped into one of two broad categories. 3. Those two categories are prokaryotic and eukaryotic. 4. Autotrophic and heterotrophic describe how an organism feeds, not how its cell is built. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 4 'Cell Structure', sections 4.1-4.6_

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Which two domains of life are made up of prokaryotes?

  1. Plants and Fungi
  2. Protists and Fungi
  3. Animals and Protists
  4. Bacteria and Archaea
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Correct answer: D. Bacteria and Archaea

1. Prokaryote means before nucleus, so the label applies to cells without a true nucleus. 2. Only the predominantly single-celled organisms of two domains qualify. 3. Those domains are Bacteria and Archaea. 4. Animals, plants, fungi and protists are all eukaryotes instead. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 4 'Cell Structure', sections 4.1-4.6_

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Mitochondria are often called the powerhouses of the cell because they make:

  1. ATP
  2. DNA
  3. RNA
  4. NaCl
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Correct answer: A. ATP

1. A powerhouse supplies usable energy to everything around it. 2. Mitochondria are responsible for making adenosine triphosphate. 3. ATP is the cell's main energy-carrying molecule. 4. DNA and RNA carry information rather than energy, and NaCl is a salt. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 4 'Cell Structure', sections 4.1-4.6_

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