Properties of Water
Macromolecules
DNA Replication
Cell Structure
Mitosis & Meiosis
100
Which of the following properties of water enables it to move from the roots to the leaves of plants? A. Water expands as it freezes. B. Water is an excellent solvent. C. Water exhibits cohesive behavior. D. Water is able to moderate temperature.
What is C. Water exhibits cohesive behavior.
100
Fats, oils and cholesterol are all types of what? A. cell membranes B. hormones C. lipids D. fatty acids
What is C. lipids
100
Which choice describes DNA after replication has taken place? A. one molecule with two original strands and one molecule with two new strands B. two molecules, each with one original and one new strand C. two molecules, each with two new strands D. two molecules, each with two old strands
What is B. two molecules, each with one original and one new strand?
100
There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures is found in both prokaryotic and eukaryotic cells? A. lysosome B. mitochondrion C. nucleus D. ribosome
What is D. ribosome?
100
Which type of reproduction leads to increased genetic variation on a population? A. Parthenogenesis B. asexual reproduction C. Sexual reproduction D. Vegetative reproduction
What is C. Sexual reproduction?
200
Large bodies of water do not quickly fluctuate in temperature. What is the reason for this phenomenon? A. Water is an acid. B. Water is a versatile solvent. C. Water has a high heat capacity. D. Water acts as a buffer.
What is C. Water has a high heat capacity.
200
RNA and DNA are which type of macromolecules? A. carbohydrate B. lipid C. nucleic acid D. protein
What is C. nucleic acid?
200
Which of the following would most likely cause a mutation? A. the placement of ribosomes on the endoplasmic reticulum B. the insertion of a nucleotide into DNA C. the movement of transfer RNA out of the nucleus D. the release of messenger RNA from DNA
What is B. the insertion of a nucleotide into DNA?
200
Cells need to bring in molecules to carry out cellular processes. Often, this requires moving the molecules across the cell membrane against the concentration gradient. How do these molecules get into the cell? A. passive transport by diffusion B. active transport using ATP C. passive transport by osmosis D. phagocytosis
What is B. active transport using ATP?
200
Which of the following phrases best describes cancer? A. absence of cyclins in the DNA B. miltiple gene mutations on a chromosome of DNA C. uncontrolled cell growth caused by mutations in genes that control the cell cycle D. presence of genetic defects caused by hereditary disorders
What is C. uncontrolled cell growth caused by mutations in genes that control the cell cycle?
300
Why does ice stay at the top of oceans instead of sinking to the bottom? A. Ice is colder than liquid water. B. Ice is less dense than liquid water. C. Ice is more dense than liquid water. D. Ice is warmer than liquid water.
What is B. Ice is less dense than liquid water.
300
What will most likely happen if an appropriate enzyme is added to a chemical reaction? A. The reaction rate will increase. B. The equilibrium of the reaction will be maintained. C. The reaction rate will decrease. D. The reaction will stop.
What is A. The reaction rate will increase.
300
Which of the following carries amino acids to the site of protein synthesis? A. mRNA B. rRNA C. tRNA D. nRNA
What is C. tRNA?
300
Which type(s) of cells have genetic material that is contained in a nucleus? A. bacteria B. only animal cells C. protists D. both plant and animal cells
What is D. both plant and animal cells?
300
Which of the following best describes meiosis? A. It is carried out in all tissues that require cell replacement. B. It occurs only in cells in the reproductive structures of organisms. C. It happens in all tissues except the brain and spinal cord. D. It is the first stage of mitosis.
What is B. It occurs only in cells in the reproductive structures of organisms.
400
Water is often called the "universal solvent" because many substances can be dissolved in water. What property of water allows it to be such a versatile solvent? A. purity B. polarity and cohesion C. high heat capacity D. expansion upon freezing
What is B. polarity and cohesion
400
A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound? A. carbohydrates B. lipids C. nucleic acids D. proteins
What is C. nucleic acids?
400
The sequence of DNA below is part of a gene. How many amino acids are coded for by this segment? 5' ATCAGCGCTGGC 3' A. 4 B. 8 C. 12 D. 20
What is A. 4?
400
Which characteristic do most plants have in common? A. they are unicellular B. they are prokaryotic C. they produce seeds D. they are autotrophic
What is D. they are autotrophic?
400
A scientist wants to change the DNA of a sexually reproducing organism and have the new DNA present in every cell of the organism. In order to do this after fertilization, she would change the DNA in which of the following? A. zygote B. placenta C. testes of the father D. ovaries of the mother
What is A. zygote?
500
The cell membrane of the red blood cell will allow water, oxygen, and carbon dioxide to pass through. Because other substances are blocked from entering, this membrane is called A. perforated B. semi-permeable C. non-conductive D. permeable
What is B. semi-permeable?
500
The enzyme lactase will break down the sugar lactose into which of the following components? A. monosaccharides B. nucleic acids C. amino acids D. phospholipids
What is A. monosaccharides?
500
At what point in the cell cycle does DNA replication occur and why? A. before a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions B. before a cell divides, to ensure that the DNA will fit into the resulting cells C. during cell division, to ensure that the DNA will fit into the resulting cells
What is A. before a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions?
500
Which cell structure is correctly paired with its primary function? A. ribosome - protein synthesis B. mitochondrion - movement C. vacuole - cell division D. nucleus - storage of nutrients
What is A. ribosome - protein synthesis?
500
Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes and event that results from mitosis but NOT meiosis? A. two stages of cell division B. replication of cellular genetic material C. daughter cells that are identical to the parent cell D. four daughter cells that are produced from each parent cell
What is C. daughter cells that are identical to the parent cell?
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