LIFE SCIENCE FALL Semester Study Guide...7th period
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____ 1. If you make an observation of a living thing and then ask a question about what you observed, you are
a. / noticing the diversity of life.b. / behaving like a life scientist.
c. / solving a problem.
d. / learning how to protect the environment.
____ 2. For every organism that has ever lived,
a. / there is only one question to ask.b. / many questions could be asked.
c. / every question has already been asked.
d. / every question has already been answered.
____ 3. Which of the following people is LEAST suited to being a life scientist?
a. / someone who likes sports.b. / someone who goes to school.
c. / someone who is very curious.
d. / someone who has no interest in organisms.
____ 4. A life scientist is LEAST likely to be found working
a. / in a laboratory. / c. / in an art museum.b. / in a hospital. / d. / at the bottom of the ocean.
____ 5. Which of the following is NOT one of the ways in which the work of a life scientist is beneficial?
a. / helping to fight diseasesb. / finding out about weather patterns
c. / studying environmental problems on Earth
d. / studying how humans inherit the code that controls their cells
____ 6. Questions that life scientists today are trying to answer include all of the following EXCEPT
a. / the part of a person’s inherited information responsible for certain inherited diseases.b. / how the human body responds to space travel.
c. / how shells have changed over time.
d. / the age of the oldest star.
____ 7. A hypothesis is
a. / a fact. / c. / a possible answer to a question.b. / a type of question. / d. / an experiment.
____ 8. A controlled experiment
a. / tests several different factors at one time.b. / has several control groups.
c. / has more control groups than experimental groups.
d. / has only one variable.
____ 9. Which of the following is NOT a characteristic that all organisms share?
a. / ability to taste and smellb. / ability to use energy
c. / ability to grow and develop
d. / ability to sense and respond to change
____ 10. What molecules form much of the cell membrane?
a. / nucleic acids / c. / ATP moleculesb. / amino acids / d. / Phospholipids
____ 11. What molecule is the major energy carrier in the cell?
a. / nucleic acid / c. / phospholipidb. / ATP / d. / Lipid
____ 12. What type of molecule is DNA?
a. / an amino acid / c. / a lipidb. / a protein / d. / a nucleic acid
____ 13. Which of the following reproduce through asexual reproduction?
a. / humans / c. / fishb. / hydra / d. / Birds
____ 14. What do gravity, sounds, and light have in common?
a. / They are necessary for survival.b. / They are characteristics of life.
c. / They are experiences all organisms share.
d. / They are examples of stimuli.
____ 15. Maintaining stable internal conditions is called
a. / shivering. / c. / homeostasis.b. / sweating. / d. / heredity.
____ 16. Human beings are
a. / machines. / c. / organisms.b. / systems. / d. / protists.
____ 17. One benefit of being a large organism is that you have
a. / larger cells. / c. / simpler functions.b. / fewer predators. / d. / only one kind of cell.
____ 18. The life span of a multicellular organism is
a. / only as long as the life of one cell.b. / shorter than that of a single-celled organism.
c. / not limited to the life of a single cell.
d. / the same in every cell.
____ 19. A group of cells with the same function makes up
a. / an organism. / c. / a tissue.b. / an organ system. / d. / a structure.
____ 20. In what kind of tissue does photosynthesis take place?
a. / nerve / c. / transportb. / muscle / d. / Ground
____ 21. An organ consists of
a. / two or more tissues. / c. / two or more systems.b. / a group of cells. / d. / nerves and muscles
.
____ 22. During the process of diffusion,
a. / cell surrounds and absorbs large particles.b. / particles move from areas of lower concentration to higher concentration.
c. / a cell surrounds and gets rid of large particles.
d. / particles move from areas of higher concentration to lower concentration
.
____ 23. Osmosis is important to cells because
a. / cells are filled with fluids that are made mostly of water.b. / cells need to get rid of large particles they don’t need.
c. / cells need to move from place to place.
d. / cells are usually dry.
____ 24. Cellular respiration is the process by which
a. / plant cells create glucose.b. / cells grow and reproduce.
c. / cells use oxygen to produce energy from food.
d. / cells breakdown food without using oxygen
.
____ 25. Fermentation in muscle cells produces
a. / glucose. / c. / water.b. / lactic acid. / d. / Bacteria
.
____ 26. Photosynthesis allows
a. / an animal cell to get energy from food.b. / a cell to produce energy without oxygen.
c. / a plant to produce food (glucose).
d. / a plant leaf to turn green.
____ 27. Cells need to produce new cells in order to
a. / create new chromosomes. / c. / obtain energy from sunlight.b. / replace cells that have died. / d. / release energy from food.
____ 28. Organelles and chromosomes are copied during
a. / the first stage of the eukaryotic cell cycle.b. / the second stage of the eukaryotic cell cycle.
c. / the third stage of the eukaryotic cell cycle.
d. / cytokinesis.
____ 29. What step did Mendel take to be sure that his pea plants cross-pollinated?
a. / He used two white plants.b. / He removed the anthers of one plant.
c. / He added anthers to both plants.
d. / He used plants that were not true breeding.
____ 30. What happens when a true-breeding plant self-pollinates?
a. / One of its offspring has the same traits as the parent.b. / Some of its offspring have the same traits as the parent.
c. / All of its offspring have the same traits as the parent.
d. / None of its offspring have the same traits as the parent
.
____ 31. Why were ratios important in Mendel’s work?
a. / They showed that heredity does not follow a set pattern.b. / They showed that some traits are never passed on.
c. / They showed the relationship between two different things.
d. / They showed that some recessive traits are really dominant
.
____ 32. Each parent gives one set of these to the offspring.
a. / genes / c. / phenotypesb. / alleles / d. / Meiosis
____ 33. A plant with two dominant OR two recessive alleles is said to be
a. / heterozygous. / c. / homozygous.b. / cross-pollinating. / d. / true breeding
.
____ 34. Which one of the following statements is NOT true?
a. / One gene can influence many traits.b. / Several genes can influence a single trait.
c. / The environment can have an influence on traits.
d. / Genes are the only influence on traits.
____ 35. Asexual reproduction relates to humans in that
a. / none of our body cells reproduce this way.b. / many body cells reproduce this way.
c. / the parent cells do not divide.
d. / meiosis occurs
.
____ 36. How are sex cells different from other human cells?
a. / Sex cells have more chromosomes.b. / Sex cells have half as many chromosomes.
c. / Sex cells are larger.
d. / Sex cells have no chromosomes.
____ 37. What are homologous chromosomes?
a. / chromosomes that carry the same set of genesb. / chromosomes that carry different sets of genes
c. / chromosomes that are small
d. / chromosomes that are large
____ 38. Why do sex-linked disorders occur more often in males?
a. / Males have two X chromosomes.b. / Males have only one X chromosome.
c. / Males have two Y chromosomes.
d. / Males have two X and two Y chromosomes
.
____ 39. What letters represent the four bases?
a. / A, B, C, D / c. / A, T, G, Cb. / W, X, Y, Z / d. / E, Y, A, O
FALL Semester Study Guide...7th period
Answer Section
MULTIPLE CHOICE
1. ANS: B PTS: 1 DIF: 1 REF: 1
OBJ: 1
2. ANS: B PTS: 1 DIF: 1 REF: 1
OBJ: 1
3. ANS: D PTS: 1 DIF: 1 REF: 1
OBJ: 2
4. ANS: C PTS: 1 DIF: 1 REF: 1
OBJ: 2
5. ANS: B PTS: 1 DIF: 1 REF: 1
OBJ: 3
6. ANS: D PTS: 1 DIF: 1 REF: 1
OBJ: 3
7. ANS: C PTS: 1 DIF: 1 REF: 2
OBJ: 1
8. ANS: D PTS: 1 DIF: 1 REF: 2
OBJ: 2
9. ANS: A PTS: 1 DIF: 2 REF: 1
OBJ: 1
10. ANS: D PTS: 1 DIF: 1 REF: 2
OBJ: 2
11. ANS: B PTS: 1 DIF: 1 REF: 2
OBJ: 2
12. ANS: D PTS: 1 DIF: 2 REF: 2
OBJ: 2
13. ANS: B PTS: 1 DIF: 1 REF: 1
OBJ: 3
14. ANS: D PTS: 1 DIF: 2 REF: 1
OBJ: 1
15. ANS: C PTS: 1 DIF: 1 REF: 1
OBJ: 2
16. ANS: C PTS: 1 DIF: 1 REF: 3
OBJ: 1
17. ANS: B PTS: 1 DIF: 1 REF: 3
OBJ: 1
18. ANS: C PTS: 1 DIF: 1 REF: 3
OBJ: 1
19. ANS: C PTS: 1 DIF: 1 REF: 3
OBJ: 2
20. ANS: D PTS: 1 DIF: 1 REF: 3
OBJ: 2
21. ANS: A PTS: 1 DIF: 1 REF: 3
OBJ: 2
22. ANS: D PTS: 1 DIF: 1 REF: 1
OBJ: 1
23. ANS: A PTS: 1 DIF: 1 REF: 1
OBJ: 2
24. ANS: C PTS: 1 DIF: 1 REF: 2
OBJ: 1
25. ANS: B PTS: 1 DIF: 1 REF: 2
OBJ: 2
26. ANS: C PTS: 1 DIF: 1 REF: 2
OBJ: 1
27. ANS: B PTS: 1 DIF: 1 REF: 3
OBJ: 1
28. ANS: A PTS: 1 DIF: 1 REF: 3
OBJ: 1
29. ANS: B PTS: 1 DIF: 1 REF: 1
OBJ: 2
30. ANS: C PTS: 1 DIF: 1 REF: 1
OBJ: 1
31. ANS: C PTS: 1 DIF: 1 REF: 1
OBJ: 2
32. ANS: A PTS: 1 DIF: 1 REF: 2
OBJ: 1
33. ANS: C PTS: 1 DIF: 1 REF: 2
OBJ: 1
34. ANS: D PTS: 1 DIF: 1 REF: 2
OBJ: 2
35. ANS: B PTS: 1 DIF: 1 REF: 3
OBJ: 1
36. ANS: B PTS: 1 DIF: 1 REF: 3
OBJ: 2
37. ANS: A PTS: 1 DIF: 1 REF: 3
OBJ: 2
38. ANS: B PTS: 1 DIF: 1 REF: 3
OBJ: 3
39. ANS: C PTS: 1 DIF: 1 REF: 1
OBJ: 2
40. ANS: B PTS: 1 DIF: 1 REF: 1
OBJ: 2