Cell Biology Quiz
27 Questions
0 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

Which characteristic is NOT true for prokaryotic cells?

  • They are typically single-celled organisms.
  • They are generally smaller than eukaryotic cells.
  • They lack membrane-bound organelles.
  • They have a true nucleus. (correct)

What is the primary function of the rough endoplasmic reticulum (RER)?

  • Energy production
  • Detoxification
  • Protein synthesis and transport (correct)
  • Lipid synthesis

How does compartmentalization benefit eukaryotic cells?

  • It eliminates the need for transport proteins.
  • It allows for specialization of functions. (correct)
  • It simplifies cellular processes.
  • It decreases the surface area of the cell.

Which organelle is primarily responsible for energy production in eukaryotic cells?

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

What is a major difference between plant and animal cells concerning organelles?

<p>Plant cells have a cell wall for structure. (A)</p> Signup and view all the answers

What is a key characteristic of prokaryotic cells?

<p>They lack a nuclear membrane. (C)</p> Signup and view all the answers

Which of the following is a distinguishing feature of eukaryotic cells compared to prokaryotic cells?

<p>Possession of a nucleus. (D)</p> Signup and view all the answers

What does cell compartmentalization refer to?

<p>Distribution of organelles within the cytoplasm. (D)</p> Signup and view all the answers

What mechanism is primarily responsible for the selective transport of substances across the plasma membrane?

<p>Active transport using ATP directly. (B)</p> Signup and view all the answers

Which of the following is NOT a difference between plant and animal cells?

<p>Plant cells contain lysosomes for digestion. (A)</p> Signup and view all the answers

In terms of the fluid mosaic model, what role do the embedded proteins play?

<p>They facilitate various cellular functions including signaling. (D)</p> Signup and view all the answers

What is the lower limit for cell size primarily determined by?

<p>The components essential for cellular function. (C)</p> Signup and view all the answers

How does increasing magnification generally affect resolution in microscopy?

<p>Magnification does not guarantee better resolution. (D)</p> Signup and view all the answers

Which of the following accurately describes the role of chloroplasts in plant cells?

<p>Site of photosynthesis, converting light energy into chemical energy (D)</p> Signup and view all the answers

What is the primary function of the central vacuole in plant cells?

<p>Storage and maintenance of turgor pressure (D)</p> Signup and view all the answers

Which feature is exclusive to animal cells compared to plant cells?

<p>Centrioles involved in cell division (B)</p> Signup and view all the answers

In which direction do molecules move during passive transport?

<p>From high to low concentration (A)</p> Signup and view all the answers

Which process requires energy to move substances across the cell membrane?

<p>Active transport (B)</p> Signup and view all the answers

What occurs to a red blood cell placed in a hypertonic solution?

<p>It shrinks and may crenate (D)</p> Signup and view all the answers

Which of the following correctly identifies a characteristic of the lipid bilayer?

<p>Selectively permeable to ions and molecules (A)</p> Signup and view all the answers

What distinguishes endocytosis from exocytosis?

<p>Endocytosis involves the formation of vacuoles, while exocytosis expels substances from the cell (B)</p> Signup and view all the answers

What is the function of gap junctions in cell junctions?

<p>Allow for direct communication between adjacent cells (D)</p> Signup and view all the answers

Which type of organic molecule is primarily involved in creating enzymes?

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

What is the primary function of lysosomes?

<p>Digestion and recycling of cellular waste (C)</p> Signup and view all the answers

Which organelle is responsible for ribosome synthesis?

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

How do microfilaments contribute to cellular functions?

<p>Facilitate movement and maintain shape (B)</p> Signup and view all the answers

Which transport mechanism utilizes ATP to move substances against their concentration gradient?

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

More Like This

Prokaryotic Cells and Organelles Quiz
18 questions
Eukaryotic and Prokaryotic Cells
8 questions

Eukaryotic and Prokaryotic Cells

InterestingPennywhistle avatar
InterestingPennywhistle
Cell Biology: Organelles and Cell Types
8 questions
Use Quizgecko on...
Browser
Browser