Human Body Molecules Quiz

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Questions and Answers

What is the C:H:O ratio in carbohydrates?

  • 2:2:1
  • 1:1:1
  • 1:2:1 (correct)
  • 2:1:1

Which type of sugar is most important in the body?

  • Hexose (correct)
  • Polysaccharide
  • Disaccharide
  • Pentose

What is the main function of phospholipids?

  • Energy storage
  • Building cell membrane (correct)
  • Providing stored energy
  • Insulating body organs

In which form are carbohydrates stored by plants?

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

What is the main location of triglycerides in the body?

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

Which type of organic molecule is the most efficient and compact form of energy storage in the body?

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

What is the main function of phospholipids in the body?

<p>Cell membrane building material (A)</p> Signup and view all the answers

Which type of lipid is mainly found beneath the skin in the body?

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

What is the main storage carbohydrate formed by plants?

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

Which organic molecule contains 2 fatty acid chains with a phosphorous-containing group and is a chief material for building cell membranes?

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

What is the C:H:O ratio in carbohydrates?

<p>1:2:1 (D)</p> Signup and view all the answers

Which type of sugar is most important in the body?

<p>Hexose (6 carbon) sugar (C)</p> Signup and view all the answers

What is the main function of phospholipids in the body?

<p>Building cell membranes (D)</p> Signup and view all the answers

In which form are carbohydrates stored by plants?

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

Which type of lipid is mainly found beneath the skin in the body?

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

What type of organic molecule is the most efficient and compact form of energy storage in the body?

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

Which organelle is involved in the synthesis of steroid hormones and the detoxification of drugs?

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

What is the fundamental unit of chromatin that consists of 8 histones connected with DNA?

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

Which type of organic molecule contains 20 common types and has long chains with peptide bonds?

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

What are the semiflexible strands made of actin that are involved in cell motility or changes in cell shape?

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

Which organelle contains digestive enzymes and is capable of digesting almost all kinds of biological molecules?

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

What is the basic repeat unit of a DNA strand, consisting of deoxyribose, a base, and a phosphate group?

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

Which organelle acts as a microtubule organizing center and contains paired centrioles oriented at right angles to each other?

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

What type of sugar is most important in the body and forms the fundamental unit of carbohydrates?

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

Which type of lipid is mainly found beneath the skin in the body and serves as an insulator and energy reservoir?

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

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