Proteins and Nucleic Acids Functions Quiz

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Questions and Answers

What is the main focus of biology?

  • Studying non-living things
  • Investigating the structure of rocks
  • Examining the characteristics of living organisms (correct)
  • Exploring the properties of gases

Which of the following is NOT a characteristic of living organisms?

  • Adaptation through evolution
  • Metabolism
  • Abiotic organization (correct)
  • Reproduction, growth, and development

What process helps living organisms maintain a stable internal environment?

  • Homeostasis (correct)
  • Mitosis
  • Photosynthesis
  • Respiration

How are living organisms classified based on cell type?

<p>By the presence of a nucleus (C)</p> Signup and view all the answers

Why is the concentration of glucose important for homeostasis?

<p>To ensure appropriate energy levels (D)</p> Signup and view all the answers

How does biology contribute to our understanding of living things?

<p>By investigating the structure and function of cells (A)</p> Signup and view all the answers

Which domain includes organisms that are mostly unicellular and have both prokaryotic and eukaryotic characteristics?

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

Which kingdom consists mostly of multicellular autotrophs with cell walls made of cellulose?

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

What is the main difference between the feeding types of Fungi and Animalia?

<p>Fungi are autotrophs while Animalia are heterotrophs (C)</p> Signup and view all the answers

What is a characteristic common to all scientific names of organisms?

<p>They are italicized when typed or underlined when handwritten (A)</p> Signup and view all the answers

What is the basic unit of matter that all organisms are composed of?

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

Which kingdom includes organisms that lack a cell wall and are multicellular heterotrophs?

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

What is the sugar found in DNA?

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

Which base pairs are present in DNA?

<p>Adenine-Thymine and Cytosine-Guanine (C)</p> Signup and view all the answers

Where is DNA primarily found in the cell?

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

Which bases are present in RNA but not in DNA?

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

What is the function of carbohydrates in cells?

<p>Energy storage and structural support (B)</p> Signup and view all the answers

What are lipids formed from?

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

Which type of protein is responsible for protecting against foreign substances?

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

What is the main function of DNA?

<p>Storage and transmission of genetic information (B)</p> Signup and view all the answers

What is the backbone of a nucleic acid made of?

<p>Sugar and phosphate molecules (D)</p> Signup and view all the answers

In nucleic acids, what is attached to the sugar groups in the backbone?

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

Which type of nucleic acid converts genetic information to build proteins?

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

How many strands make up DNA, and what are they arranged in?

<p>Two strands arranged in a double helix (B)</p> Signup and view all the answers

Which type of vitamins are released, absorbed, and transported with dietary fat?

<p>Fat-soluble vitamins (B)</p> Signup and view all the answers

Where are fat-soluble vitamins stored in the body?

<p>Liver, fatty tissue, and muscles (B)</p> Signup and view all the answers

Which group of vitamins needs to be consumed regularly to prevent deficiencies?

<p>Water-soluble vitamins (C)</p> Signup and view all the answers

What is the exception among water-soluble vitamins that can be stored in the liver for many years?

<p>Vitamin B12 (B)</p> Signup and view all the answers

What is the most abundant molecule in cells, whole organisms, and on earth?

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

What percentage of total cell mass does water account for?

<p>70% or more (C)</p> Signup and view all the answers

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