2nd grade. cell and bioelements

The______________

are the chemical elements present in living beings. They can appear isolated or forming molecules. More than 118 chemical elements have been found in nature, some of which are found in living beings are classified according to their abundance in the system as____________

• Biomolecules/first class, second class and so on

• Bioelements/Primary, secondary and so on

• Bioelements/first class, second class and so on

The elements with the most abundant proportion in living matter are

• primary biomolecules

• secondary bioelements

• primary bioelements

• trace bioelements

Nitrogen and phosphorus are considered

• trace bioelements

• trace biomolecules

• secondary bioelements

• primary bioelements

The main characteristic of lipids is

• Produce short-term energy with high calorie content

• they are the main energy reserve of animals, as a long-term source of energy

• they form sugars necessary to slow down or accelerate metabolic reactions

• Produces long-term energy with low calorie content

• Its content of unsaturated molecules prevents its degradation

The _________ content is mainly made up of water to prevent cell wear and tear and facilitate the movement of nutrients

• cytoplasmic

• Ectoplasmic

• Ectoplasmic

• plasmatic

Anemia, hemophilia, are diseases that develop due to a deficit of:

• sodium - low production of monosaccharides

• calcium - lipid assimilation

• Iron - protein synthesis

• Calcium - oxygen assimilation

The prokaryote cell is bigger than a eukaryote cell

• true, being a more complex element, capable of infecting a eukariote cell

• false, as the eukaryotic cell is the most complex, even many of its organelles are larger than a prokaryotic

• false, a prokaryotic cell may be smaller than its more complex counterparts

• true, some archaea being capable of exceeding the size of certain prokaryotes given their complexity

The plasma membrane is present in prokaryotes and eukaryotes, and about it we know that...

• It limits the cell and allows the passage of substances.

• It is made up only of fats to prevent dirt from moving around the cell

• Only prokaryotic cells have it, it serves to guard the nucleus

 

_______ is the smallest unit of matter, together they form_________

• cell, tissues

• atom, molecules

• cell, molecules

• atom, tissue

 

_______ is the smallest unit of life that ever exist, together they form_______

• atom, cells

• Cell, tissues

• cells, molecules

• Atom, organs