Biology Sol Biochemistry

Some insects can stand on the surface of water because water —

• has a high specific heat
• is a good evaporative coolant
• is cohesive and adhesive
• has a high boiling point

Tags

NGSS.HS-ESS2-5

Some peeled pieces of apple were placed in distilled water and some in very salty water. The cells in the apple pieces will —

•   lose water in both solutions
•   gain water in the distilled water and lose water in the salty water
•   gain water in both solutions
•   lose water in the distilled water and gain water in the salty water  

Tags

NGSS.HS-LS1-2

NGSS.HS-LS1-3

Which of the following molecules is most abundant in the cells of the human body?

• Nucleotides
• Water
• Lipids
• Amino acids

Unlike other animals, mammals can perspire. The main benefit of perspiring is that it —

• removes dirt from the surface of the skin
• cools the skin with evaporation
• relaxes the muscles
• removes extra water from the cells

Tags

NGSS.HS-LS1-3

The unique properties of water enable life to exist on Earth. Which of these is a property of pure water?

• It dissolves many substances.
• Its solid form is more dense than its liquid
• It is slightly more acidic than air.
• It has a low heat absorption capacity.

Tags

NGSS.HS-ESS2-5

Ice floats on a lake. This characteristic of water is responsible for —

• suffocation of aquatic organisms
• mixing a lake’s thermal layers
• preventing a lake from freezing solid
• altering migration patterns of fish

Tags

NGSS.HS-ESS2-5

When there is a lower concentration of water outside of a plant cell rather than inside a plant cell, the plant will tend to —

• grow toward the sun
• lose water and wilt
• gain water and become rigid
• increase its rate of photosynthesis

Tags

NGSS.HS-LS1-3

The concentration of glucose must be maintained within a fairly narrow range in most vertebrates. This statement is an example of — 

• homeostasis
• fermentation
• excretion
• glycolysis

Tags

NGSS.HS-LS1-3

A microorganism which releases water into its environment to regulate its salinity during osmosis is undergoing a process that is similar to a human being who releases moisture on a hot day. This process that helps keep both the microorganism and the human body fluids in balance is known as —

• heredity
• homeostasis
• mutation
• cell division

Tags

NGSS.HS-LS1-3

Which of the following macromolecules are a prominent part of animal tissues that function in insulation, helping animals conserve heat?

• Carbohydrates
• Lipids
• Proteins
• Nucleic acids