Cell Structure and Function Quiz
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Questions and Answers

What is the study of cells in all aspects of structure and functions called?

  • Genetics
  • Zoology
  • Botany
  • Cell Biology (correct)

Who, in 1665, discovered and named cells while examining a thin slice of cork?

  • Gregor Mendel
  • Antonie van Leeuwenhoek
  • Louis Pasteur
  • Robert Hooke (correct)

What does the word 'cell' mean in Latin?

  • Little room (correct)
  • Complex organism
  • Large structure
  • Plant structure

Which scientist described the cellular structure as resembling a honeycomb with many little compartments?

<p>Robert Hooke (B)</p> Signup and view all the answers

What is the bark-derived substance that Robert Hooke studied under a microscope called?

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

What was the basic unit of life identified by Robert Hooke in his study of cork slices?

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

Why was Robert Hooke's discovery about cells significant?

<p>It showed that organisms were made up of smaller structures or units. (A)</p> Signup and view all the answers

What did Robert Hooke observe in corks?

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

Who made an improved microscope and discovered free living cells in pond water?

<p>Anton van Leeuwenhoek (B)</p> Signup and view all the answers

What did Anton van Leeuwenhoek discover using his microscope for the first time?

<p>Cells in rabbits, frogs, fish, and insects (C)</p> Signup and view all the answers

Who discovered and named the nucleus of sperm cells?

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

In what year did Anton van Leeuwenhoek discover free living cells in pond water?

<p>1674 (A)</p> Signup and view all the answers

Who gave the term 'protoplasm' in plant cells?

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

In which organisms did Anton van Leeuwenhoek discover cells using his microscope?

<p>Rabbits, frogs, fish, and insects (D)</p> Signup and view all the answers

Who was the first to observe the nucleus and propose that it was the cell's control center?

<p>J. E. Purkinje (D)</p> Signup and view all the answers

What fundamental functions are cells capable of carrying out for the survival of organisms?

<p>Respiration, growth, and reproduction (D)</p> Signup and view all the answers

What is the meaning of the Latin word 'cellula' from which the term 'cell' is derived?

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

Why was Robert Hooke's discovery of cells significant in the scientific world?

<p>It demonstrated that organisms are made up of smaller structures called cells (B)</p> Signup and view all the answers

What is the study of cells in all aspects of structure and functions referred to as?

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

In what year did Robert Hooke make his chance discovery through a self-designed microscope?

<p>1665 (C)</p> Signup and view all the answers

What did Robert Hooke compare the cellular structure observed in cork to?

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

What substance did Robert Hooke study under a microscope that led to his discovery of cells?

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

What did Anton van Leeuwenhoek discover in 1674 using an improved microscope?

<p>Free living cells in pond water (C)</p> Signup and view all the answers

Who first observed the nucleus and suggested it was the cell's control center?

<p>J.E. Purkinje (C)</p> Signup and view all the answers

Who discovered and named the nucleus of sperm cells?

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

What did J.E. Purkinje propose about the nucleus of the cell?

<p>That it was the control center of the cell (B)</p> Signup and view all the answers

Who was credited with giving the term 'protoplasm' in plant cells?

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

What structure did Robert Brown discover and name, as mentioned in the text?

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

What was the significant discovery made by Anton van Leeuwenhoek, as per the text?

<p>&quot;Seeing&quot; the free living cells in pond water (B)</p> Signup and view all the answers

"Who was the first to observe a honeycombed or porous structure resembling cork cells?"

<p>&quot;Robert Hooke&quot; (C)</p> Signup and view all the answers

What did Anton van Leeuwenhoek discover in 1674 using an improved microscope?

<p>Free living cells in pond water (C)</p> Signup and view all the answers

Who discovered and named cells while examining a thin slice of cork in 1665?

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

What is the study of cells in all aspects of structure and functions called?

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

Who was credited with giving the term 'protoplasm' in plant cells?

<p>J.E. Purkinje (A)</p> Signup and view all the answers

What substance did Robert Hooke study under a microscope that led to his discovery of cells?

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

What was the basic unit of life identified by Robert Hooke in his study of cork slices?

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

What did J.E. Purkinje propose about the nucleus of the cell?

<p>It is the control center of the cell (D)</p> Signup and view all the answers

What structure did Robert Brown discover and name, as mentioned in the text?

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

What type of cells did Anton van Leeuwenhoek discover using his microscope?

<p>Free living cells in pond water (B)</p> Signup and view all the answers

Who made an improved microscope and discovered free living cells in pond water?

<p>Anton van Leeuwenhoek (D)</p> Signup and view all the answers

Which scientist first observed the nucleus and proposed that it was the cell's control center?

<p>J.E. Purkinje (A)</p> Signup and view all the answers

What is the meaning of the term 'protoplasm' as used in the context of plant cells?

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

Who was credited with giving the term 'protoplasm' in plant cells?

<p>J.E. Purkinje (D)</p> Signup and view all the answers

What substance did Robert Hooke study under a microscope that led to his discovery of cells?

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

What is essential for the working of an electron microscope?

<p>An internal vacuum (D)</p> Signup and view all the answers

What is the purpose of impregnating the object with metal in an electron microscope?

<p>To enhance contrast (D)</p> Signup and view all the answers

What is the primary role of the electron gun in an electron microscope?

<p>To generate electrons (C)</p> Signup and view all the answers

What is done to the specimen position in an electron microscope?

<p>It is kept static (B)</p> Signup and view all the answers

What feature of electron microscopes makes them superior to compound microscopes?

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

What range of magnification is typically achieved by an electron microscope?

<p>$100,000$ to $500,000$ (A)</p> Signup and view all the answers

Why is it crucial for the object in an electron microscope to be ultra thin and dry?

<p>To prevent distortion and interference (B)</p> Signup and view all the answers

What is the purpose of preparing a temporary compound microscope with onion peel as described in the text?

<p>To study the cellular structure of onion peel under a microscope (C)</p> Signup and view all the answers

What is the primary characteristic of the small microscopic structures found in an onion peel?

<p>They are all of similar size (C)</p> Signup and view all the answers

What do the structures observed in an onion peel refer to collectively?

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

Why is it significant that all cells in an onion peel have a similar appearance?

<p>To highlight their common origin and function (C)</p> Signup and view all the answers

What term is used to describe the basic building units seen in an onion peel?

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

What is the main feature that distinguishes cells in an onion peel from each other?

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

What term describes the small structures seen under a microscope that make up living organisms?

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

Why is it essential to observe the cellular structure under low and high power of a light microscope?

<p>To visualize cellular details at different magnifications (A)</p> Signup and view all the answers

What is the purpose of preparing a temporary compound microscope with onion peel as described in the text?

<p>To study the cellular structure of onion peel under a light microscope (D)</p> Signup and view all the answers

Who discovered and named the nucleus of sperm cells?

<p>J.E. Purkinje (C)</p> Signup and view all the answers

What did Anton van Leeuwenhoek discover in 1674 using an improved microscope?

<p>Free living cells in pond water (A)</p> Signup and view all the answers

What term describes the small structures seen under a microscope that make up living organisms?

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

What was the basic unit of life identified by Robert Hooke in his study of cork slices?

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

What substance did Robert Hooke study under a microscope that led to his discovery of cells?

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

What feature of electron microscopes makes them superior to compound microscopes?

<p>Increased magnification and resolution (B)</p> Signup and view all the answers

What is the main area of focus in the provided text?

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

Which term relates to the enhancement of images for analysis?

<p>RuorJ 11o (B)</p> Signup and view all the answers

What can be deduced about 'Surreda.rd' based on the text?

<p>It signifies object detection in computer vision. (C)</p> Signup and view all the answers

What might 'l.rafuappns' stand for in the context of image processing?

<p>Robust edge detection (C)</p> Signup and view all the answers

'JelnllaJrllnlu ue Jo silar aLI+ lpq+ ra^ sue ppoqs noL';.,;zts' most likely relates to which phase of image processing?

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

'S1.tud ryan{ltp ruo,LJ s17at Yuorua satua.ta[tp pu{ noli ua)'+uaJ' is most likely associated with:

<p>Preprocessing steps in image analysis (A)</p> Signup and view all the answers

What term is used to refer to the small microscopic structures found in the text related to artificial intelligence?

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

Which scientist's discovery mentioned in the text is most analogous to the process of feature extraction in machine learning?

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

What concept in computer vision can be compared to the study of cells' functions?

<p>Object Detection (B)</p> Signup and view all the answers

In image processing, which operation is most similar to the observation of cellular structures under a microscope?

<p>Edge Detection (B)</p> Signup and view all the answers

Which area of machine learning is most akin to the concept of 'protoplasm' in plant cells?

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

Which technique in artificial intelligence aligns closely with the comparison Robert Hooke made about cellular structures resembling a honeycomb?

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

What aspect of computer vision would best relate to the comparison of 'cells in an onion peel having a similar appearance'?

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

What is a characteristic feature of a typical prokaryotic cell?

<p>Absence of a nucleolus (C)</p> Signup and view all the answers

Which organelle is absent in a prokaryotic cell but present in a eukaryotic cell?

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

What differentiates the size of prokaryotic cells from eukaryotic cells?

<p>Smaller cell size (D)</p> Signup and view all the answers

Which feature is unique to eukaryotic cells when compared to prokaryotic cells?

<p>Presence of a nucleolus (B)</p> Signup and view all the answers

What is a distinguishing characteristic of the nuclei in prokaryotic cells?

<p>Presence of nucleoids (C)</p> Signup and view all the answers

Which cellular feature is common between prokaryotic and eukaryotic cells?

<p>Presence of ribosomes (B)</p> Signup and view all the answers

What distinguishes the nuclear regions of prokaryotic and eukaryotic cells?

<p>Absence of nucleolus in eukaryotes (C)</p> Signup and view all the answers

What is the key difference between the plasma membranes of prokaryotic and eukaryotic cells?

<p>'Eukaryotic plasma membrane has granules' (B)</p> Signup and view all the answers

What is unique to prokayotic cells that are not found in eukarYotic ce1ls?

<p>Existence of ribosome attached to Plasma membra PhosPhate caPSU le chromosome (B)</p> Signup and view all the answers

What did Anton van Leeuwenhoek observe using his microscope for the first time?

<p>Free living cells in pond water (B)</p> Signup and view all the answers

What is the primary role of the 'electron gun' in an electron microscope?

<p>Generating electrons for imaging (A)</p> Signup and view all the answers

What is the term used to describe the small structures seen under a microscope that make up living organisms?

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

Which scientist first observed a honeycombed structure resembling cork cells?

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

What did Robert Hooke compare the cellular structure observed in cork to?

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

What concept in computer vision can be compared to the study of cells' functions?

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

Who was credited with giving the term 'protoplasm' in plant cells?

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

What distinguishes prokaryotic and eukaryotic cells' nuclear regions?

<p>Location within the cell (B)</p> Signup and view all the answers

What substance did Robert Hooke study under a microscope that led to his discovery of cells?

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

Who discovered and named the nucleus of sperm cells?

<p>J.E. Purkinje (C)</p> Signup and view all the answers

'S1.tud ryan{ltp ruo,LJ s17at Yuorua satua.ta[tp pu{ noli ua)'+uaJ' is most likely associated with:

<p>Image processing terminology (B)</p> Signup and view all the answers

'Surreda.rd' mentioned in the text most likely refers to which phase of image processing?

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

Which scientist's discovery mentioned in the text is most analogous to the process of feature extraction in machine learning?

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

What did Robert Brown discover and name, as mentioned in the text?

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

'JelnllaJrllnlu ue Jo silar aLI+ lpq+ ra^ sue ppoqs noL';.,;zts' most likely relates to which phase of image processing?

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

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