FREE BIOLOGY AND STUDY GAMES ABOUT BIOL 101 CH

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FREE BIOLOGY AND STUDY GAMES ABOUT BIOL 101 CH

1-2 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -188 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Kappa -

Answer:

pain relief

Question 2: Which of these materials are found in the cell walls of fungi?

Answer:

Chitin

Question 3: starch

Answer:

a storage polysaccharide in plants; a polymer of glucose

Question 4: unsaturated fatty acid

Answer:

a fatty acid with one or more double bonds between carbon in the hydrocarbon tail, lacking the maximum number of hydrogen atoms

Question 5: The smallest structure capable of performing all the basic functions of life is the

Answer:

cell Question 6: When a substance releases hydrogen ions in solution, it is considered a(n)

Answer:

acid

Question 7: Explain why the cell is the basic unit of life.

Answer:

The cell is the basic unit of life because all living organisms are made up of cells, and all cells come from preexisting cells.

Question 8: In the scientific name for humans, ________ is the species name

Answer:

sapiens Question 9: The material that is common to the cell walls of plants and algae is called

Answer:

cellulose

Question 10: Proteins are composed of monomers called

Answer:

amino acids

Question 11: The outermost electron shell of an atom is called its

Answer:

valence shell Question 12: In science, a concept that is supported by a broad range of observations, experiments, and data (such as evolution) is called

Answer:

a scientific principle, law, and theory

Question 13: Plasma membrane -

Answer:

sheath around cytoplasm that regulates entrance and exit of molecules Question 14: A radioactive isotope, such as carbon-14, emits energy as which of the following?

Answer:

Subatomic particles, rays

Question 15: Tay-Sachs occurs when lysosomes cannot clean up

Answer:

cellular debris

Question 16: Nucleoid -

Answer:

location of the bacterial chromosome Question 17: Explain why the conversation of biodiversities is important to human society.

Answer:

Biodiversity contributes to the health of ecosystems that we depend on for food, medicines, and raw materials. Ecosystems that are destroyed can no longer function well in water cycling, soil conservation, and chemical cycling.Question 18: With regard to protein structure, primary structure is the linear sequence of amino acids joined by

Answer:

peptide bonds.

Question 19: Which of these cells have a membrane-bound nucleus?

Answer:

Eukaryotes only

Question 20: What type of cellular junction is a desmosome?

Answer:

Adhesion junction

Question 21: Fimbriae -

Answer:

hairlike bristles that allow adhesion to surfaces

Question 22: biology

Answer:

the scientific study of life Question 23: True or false: The main characteristic that distinguishes a eukaryotic cell from a prokaryotic cell is a cell wall.

Answer:

False Question 24: Explain how radiation can be both beneficial and harmful to humans.

Answer:

Radiation can be helpful because it can kill cancer, is used in X-rays, and can kill bacteria and fungi present on certain stuff. High levels of radiation can cause burns, harm cells, and change DNA structure.

Question 25: hydrophillic

Answer:

water-loving polar or charged molecules that are soluble in water Question 26: Vesicles that function in the metabolism of fatty acids and contain an enzyme to break down the hydrogen peroxide byproduct of this metabolism are called

Answer:

peroxisomes Question 27: Identify the reason why scientists are looking for water on Europa.

Answer:

Water is the fundamental molecule for all life.

Question 28: glucose

Answer:

a six-carbon monosaccharide that serves as a building block for many polysaccharides and whose oxidation in cellular respiration is a major source of ATP for cells.