Biology as a science
Levels of biological organization
History and advances in biology
Bioelements, water, and vitamins
Biomolecules
100

It is a natural science that studies life and living beings, their structure, processes, behavior, classification, evolution, and interactions.

Biology

100

This is the basic unit for life, both in structure and function.

Cell

100

This scientist in the history of biology proposed a theory of evolution to explain how species change over time and was key to the modern understanding of how living beings are adapted to their environment.

Charles Darwin

100

What is the main bioelement, found in every organic compound that an organism has?

Carbon

100

TRUE or FALSE

Monosaccharides are the building blocks of polysaccharides.

TRUE

200

What are the steps of the scientific method?

  • Observation
  • Question
  • Research
  • Hypothesis
  • Experiment
  • Data
  • Conclusion
200

What is formed when a group of similar cells join to perform a common function?

A tissue

200

This scientist discovered cells by looking at them under a microscope for the first time.

Robert Hooke

200

TRUE or FALSE

Secondary bioelements are present in lower quantities because they are not essential for living beings.

FALSE

They are necessary, but at lower concentrations compared to primary bioelements.

200

What type of biomolecules store genetic information and send protein synthesis messages?

Nucleic acids

300

What are the characteristics of science?

  • Verifiable
  • Modifiable
  • Methodical
  • Systematic
300

What is the highest level of biological organization, which includes all living beings on Earth in their different environments?

Biosphere

300

Who discovered the laws of inheritance using peas in his experiments and is considered the father of genetics?

Gregor Mendel
300

Vitamins areare organic compounds necessary for major functions in the body, whose deficiency can lead to several health complications. Based on their chemical properties, how are they classified?

Water-soluble and fat-soluble vitamins.

300

They are water-insoluble biomolecules, but soluble in organic solvents. They are the main component of cell membranes and our main reserves of energy.

Lipids

400

Give the name for 3 branches or divisions of biology.

Cell biology, molecular biology, genetics, zoology, botany, ecology, evolutionary biology, paleobiology, ecology, bioinformatics, etc.
400

This level of biological organization is formed through the presence of individuals from different species in the same place.

Community

400

Name 3 unsolved problems in biology.

The origin of life, the origin of eukaryotes, the origin of viruses, the biological need for sleep, how consciousness works, how biological aging happens, etc.
400

These 6 primary bioelements are essential and constitute the major elements of living organisms.

  • Carbon (C)
  • Hydrogen (H)
  • Nitrogen (N)
  • Oxygen (O)
  • Phosphorus (P)
  • Sulfur (S)
400

What is the importance of the structure in a protein?

It determines its function, because each protein has a certain structure and different functions based on it. Also, a protein that goes through denaturation loses its native folding and goes inactives.

500
Explain why ethics is important in biology (bioethics).

It raises questions about what is right or wrong regarding decisions made in medical contexts, environmental protection, what and how experiments and procedures can be done in a safe way, etc.

500

This level of biological organization includes both the different species that are present in a certain environment and the abiotic/non-living factors (such as temperature, sunlight, water, etc) that influence them.

Ecosystem

500

This is one of the most important problems in biology, but advances in bioinformatics in the last few years have solved it for the most part.

How to predict the 3D structure of proteins based on their sequence of amino acids.

500

What property of water related to biological systems allows us and other animals to regulate our body temperature and avoid overheating?

High heat of vaporization

500

Give an example of a carbohydrate, a lipid, a protein, and a nucleic acid.

• Carbohydrates: glucose, lactose, starch, glycogen, cellulose, chitin, etc.

• Lipids: triglycerids, phospholipids, cholesterol, etc.

• Proteins: hemoglobin, actin, myosin, antibodies, enzymes, albumin, etc.

• Nucleic acids: DNA and RNA.

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