ELEMENTS OF LIVING ORGANISMS
Which statement describes an element? Check all that apply.
An element is a pure substance that cannot be broken down into a simpler form All elements are listed on the periodic table of elements. An element symbol begins with a capital letter; if there is a second or even third letter, it is a lowercase letter.
Which statement correctly describes glucose (C6H12O6)?
It is a compound made of twenty-four total atoms of three different elements.
Identify each item as either an element or a compound.
✔ elementcompound carbon (C) element✔ compound carbon dioxide (CO2) ✔ elementcompound hydrogen (H) element✔ compound sodium chloride (NaCl)
Click the statement that best describes the role of each element in living organisms.
Carbon is the most abundant element by massmakes up 60% of the atoms in living organisms✔ is a versatile element, and the basis of all living organisms. Oxygen ✔ is the most abundant element by massmakes up 60% of the atoms in living organismsis a versatile element, and the basis of all living organisms. Hydrogen is the most abundant element by mass✔ makes up 60% of the atoms in living organismsis a versatile element, and the basis of all living organisms.
List the six fundamental elements found in living organisms in the text area below.
Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur
Which statements describe the importance of the six elements found in all living things? Check all that apply
Carbon, oxygen, hydrogen, nitrogen, and phosphorus are all involved in creating genetic material. Proteins are created by carbon, oxygen, hydrogen, nitrogen, and sulfur. Elements can combine to form all the substances found on Earth.
Which of these statements did you include in your answer? Check all that apply.
Elements are pure substances with only one type of atom.
Explain why there are more substances on Earth than are listed on the periodic table of elements.
Elements are pure substances with only one type of atom. when 2+ elements are combined,compounds are formed, this allows more substances to be created on earth. ... Water contains two hydrogen atoms and one oxygen atom.
In the box provided explain why living organisms contain more hydrogen atoms than any other atoms, yet 65% of a typical organism's mass is oxygen.
Living organisms contain more hydrogen atoms than any other atoms, yet 65% of a typical organism's mass is oxygen because Oxygen atoms contain 16 times more mass than the mass of hydrogen atoms. The atomic mass of oxygen is 16 while that of Hydrogen is 1
Click the statement that best describes the role of each element in living organisms.
Nitrogen X provides strength to bones and exoskeletons.gives strength to the protein keratin.✔ is obtained by plants from bacteria in soil. Phosphorous ✔ provides strength to bones and exoskeletons.gives strength to the protein keratin.X is obtained by plants from bacteria in soil. Sulfur provides strength to bones and exoskeletons.✔ gives strength to the protein keratin.is obtained by plants from bacteria in soil.
Where is the best place to find information about the hazards that are associated with a compound?
Read a Material Safety Data Sheet (MSDS).
Before using any chemical in the lab, why should one first read the Material Safety Data Sheet (MSDS)?
This is important for laboratory safety.
What is the smallest unit of matter that has characteristic properties of its element?
atom
Which organisms transform nitrogen to a form that is useful to plants?
bacteria
The most abundant element in the atmosphere can also be found in
beans and whey protein.
Which elements are involved in creating genetic material? Check all that apply.
carbon hydrogen oxygen nitrogen phosphorus
Check the elements you included in your list
carbon (C) hydrogen (H) oxygen (O) nitrogen (N) phosphorus (P) sulfur (S)
Which element is considered the most versatile element in living organisms and why?
carbon, because it can bond with many elements to form complex molecules
A new organism is discovered at the bottom of the ocean. A scientist is determining the composition of elements found in the tissues of the organism.Which elements will most likely be found?
carbon, hydrogen, nitrogen, and oxygen
Which term describes a pure substance that is made up of only one type of atom?
element
Beth recently became a vegetarian. The doctor suggested Beth eat more peas and beans to ensure she gets all of the nutrients she needs. Which element might the doctor be trying to help her get more of?
nitrogen
Check all the characteristics below that describe elements.
one type of atom a pure substance
Which of these elements is found in both carbohydrates and water?
oxygen
Beth broke her ankle bone. The doctor gives her a brochure on foods she can eat to help restore the health of her bones. Which element will help Beth strengthen the bone?
phosphorus
Check all the characteristics below that describe compounds.
two or more elements chemically combined elements definite proportions
Which substance is a compound?
water
