Download Exam 1 Review - Iowa State University

Exam 1 Review:
Practice Exam
Supplemental Instruction
Iowa State University
Leader:
Course:
Instructor:
Date:
Jessica
Biol 211(1)
Holscher
9/11/2016
1. What is a hypothesis?
a) a verifiable observation
b) the same thing as an unproven theory
c) a testable explanation that can be falsified
d) a fact that can be observed
e) A fact that is testable
2. Which branch of biology is concerned with naming organisms?
a) Name-ology
b) taxonomy
c) phylogenetics
d) systematics
e) ecology
3. __________ is used to trace the evolutionary history of species or groups of organisms.
A) Phylogeny
B) Taxonomy
C) Bioinformatics
D) Binomial nomenclature
4. The classification system that we use in this class is
a) The 2 Kingdom system
b) The 5 Kingdom system
c) The 3 Domain system
d) The magic Kingdom system
e) None of the above
5. The oldest group of organisms on earth are ______ and are the common ancestor of all
animals.
a) plants
b) prokayotes
c) protists
d) Euglenazoa
e) dinosaurs
6. An “endosymbiont” is ___________________. The primary plastids of ___________ are
thought to have originated this way.
a) a chimera, red algae
b) a eukaryote cell, red algae
c) an organism that lives inside another organism, red and green algae
d) a plant and its pollinator, red and green algae
e) Lynn Margulis, green algae
1060 Hixson-Lied Student Success Center  515-294-6624  [email protected]  http://www.si.iastate.edu
7. ________ is the most common compound in the cell walls of gram-positive bacteria.
a) Cellulose
b) Lipopolysaccharide
c) Lignin
d) Peptidoglycan
e) Capsule
8. What is the correct sequence of events during an animal's early development
1. gastrulation
2. blastula formation
3. fertilization
4. cleavage
A) 4-3-2-1
B) 4-3-1-2
C) 3-2-4-1
D) 3-4-2-1
E) 3-4-1-2
9. The fate of the blastopore distinguishes between Protostomes in which it becomes
the___________, and Deuterostomes in which it becomes the___________.
A) mouth, coelom
B) anus, mouth
C) coelom, archenteron
D) mouth, anus
E) none of the above
10. Many of the Phyla existing today first appear in the fossil record over 500 mya during the
A) Ediacarian Period
B) Cretaceous Period
C) Permian Period
D) Carbiniferous Period
E) Cambrian Period
11. Cephalization is most closely associated with which of the following?
A) a sessile existence
B) concentration of sensory structures at the anterior end
C) a vertebral column
D) a predatory lifestyle
E) a sedentary lifestyle
12. Sponges differ from all other animals in that they:
A)
lack cells
B)
are sessile
C)
display radial symmetry
D)
are hermaphrodites
E)
lack true tissues
13. Acoelomates are characterized by:
A) the absence of a brain
B) the absence of mesoderm
C) a coelom not completely lined with mesoderm
D) a solid body without a cavity surrounding the internal organs
E) dueterostome pattern of development
14. The prokaryotes that are able to produce oxygen are the ___________.
A) dinolagellates
B) dinoflagellates and cyanobacteria
C) cyanobacteria
D) green algae
E) halophiles
15. Circle the statement about prokaryotic cells that is true.
A) The genome of a prokaryote consists of a single linear strand of DNA contained in a welldefined membrane-bound nucleus.
B) Prokaryotic chromosomes are also called plasmids.
C) The genome of a prokaryote consists of a single linear strand of DNA contained in a welldefined membrane-bound nucleus.
D) The genome of a prokaryote consists of a circular chromosome located in a nucleoid region.
16. Foraminiferans contain the characteristic of
A) Multichambered, porous shells that allow for the extension of pseudopodia
B) multicellularity
C) movement using flagella
D) movement using cilia
17. “Red tides” are caused by
A) green algae
B) red algae
C) dinoflagellates
D) diatoms
18. Triplobastic animals have a body cavity called
A) lophophore
B) trocophore
C) acoelom
D) coelom
19. Parthenogenesis is
A) Reproduction consisting of only females that produce more females from unfertilized eggs
B) Reproduction consisting of only females that produce more females from fertilized eggs
C) male and female sexual reproduction
D) budding
20. Prokaryotes poisoned by O2 are classified as
A) facultative aerobes
B) obligate anaerobes
C) obligate aerobes
D) aerotolerant anaerobes
21. The end of the Cretaceous Period where the dinosaurs went extinct
A) The Cambrian explosion
B) The K-P extinction
C) The Jurassic explosion
D) The Pleocene explostion
22. Bacteria have cells walls that contain _____, whereas archaea do not.
A) Peptidoglycan
B) organelles
C) ribosomes
D) nuclei
23. Flatworms is the common name for Phylum
A) Porifera
B) Platyhelminthes
C) Nemotoda
D) Annelida
24. The blastopore is first noticeable during _________. This is also the stage where you are first
able to distinguish a diploblastic embryo from a triploblastic embryo.
A) gastrulation
B) plasmogamy
C) fertilization
D) cleavage
25. A lophophore is used for
A) locomotion
B) skeletal support
C) feeding
D) reception
26. The zygotes of most deuterstomes undergo _________ cleavage.
A) spiral and determine
B) radial and determinate
C) spiral and indeterminate
D) radial and indeterminate
27. Photoautotrophs use _____ as an energy source and _____as a carbon source.
A) light, light
B) carbon, light
C) carbon, carbon
D) light, carbon
28. Animals that feed on living plants are called _______.
A) omnivores
B) herbivores
C) carnivores
D) detritivores
29. How do tapeworms feed?
A) gastrovascular cavity
B) use their feet to put food in their mouths
C) absorb nutrients across their body wall
D) autotrophic
30. Gram-positive bacteria typically have ________.
A) no peptidoglycan layer
B) thin peptidoglycan layer
C) thick peptidoglycan layer
31. Which of the following represents the correct way to designate the scientific name of
humans?
A) homo sapiens
B) Homo sapiens
C) Homo Sapiens
D) Homo sapiens
32. The prokaryotes most likely to be found living in a volcano are the ________
A) halophiles
B) cyanobacteria
C) proteobacteria
D) hyperthermophiles
33. If you separate 4 cells that are determinate, what will happen?
A) each cell will develop into a full-sized, normal embryo
B) each cell may develop into a smaller than average, but normal embryo
C) each cell may continue to develop, but only into an embryo that lacks many parts
D) all 4 cells will die
34. If you separate 4 cells that are indeterminate, what will happen?
A) each cell will develop into a full-sized, normal embryo
B) each cell may develop into a smaller than average, but normal embryo
C) each cell may continue to develop, but only into an embryo that lacks many parts
D) all 4 cells will die
35. Prokaryotes reproduce asexually by ________
A) mitosis
B) meiosis
C) binary fission
D) alternation of generations
36. Phytoplankton are _______
A) a type of cyanobacteria
B) aquatic, photosynthetic protists
C) heterotrophic, unicellular protists
D) the closest relatives of extant land plants
37. A sexual process called _______ in ciliates results in genetic variation.
A) plasmogamy
B) phagocytosis
C) karyogamy
D) conjugation
38. True coelom derives from ______ tissue
A) mesoderm
B) ectoderm
C) endoderm
D) mesoderm and endoderm
39. Prokaryotes have which of the following?
A) nucleus
B) golgi apparatus
C) ribosomes
D) mitochondria
40. Gram Negative bacteria have a _______ peptidoglycan cell wall and a lipopolysaccharide
outer envelope.
A) thin
B) thick
C) none
41. If Jessica has a disease with a bacteria called Vibrio cholorae , the bacteria would most likely
be
A) Circular
B) Rod shaped
C) Comma shaped
D) Spiral shaped
42. Meiosis can only occur in
a. humans
b. bacteria
c. archaea
d. dipoid (2n) cells
43. The process of using bacteria as a way to clean stuff (for example an oil spill) is called?
A) Bioremediation
B) Bacteria attack
C) antibiotics
D) GMO’s
44. True or false: most protists are found in dry, terrestrial habitats.
A) true
B) false
45. Torsion is when
a. The visceral mass forms
b. The circulatory system goes from open to closed
c. The visceral mass rotates 180 so the anus is above the head
d. The snail goes really fast!
46. Organisms known for their glass like appearance and diatomaceous earth are
A) Forminapherans
B) Brown algae
C) Euglena
D) Diatoms
47. Most of the animals living on Earth right now are
A) reptiles
B) humans
C) arthropods
D) birds
48. Butterflies go through complete metamorphosis, this means
a. Larva  pupa  adult
b. Pupa  larva  adult
c. egg  larva  pupa  adult
d. egg  pupa  larva  adult
49. What is Phylum Arthropoda distinguished for?
A) having body segments organized into tagmata
B) for being scary and gross
C) for being single-celled flagellated protists
D) for absorbing nutrients across their body wall
50. All arthropods have ________
A) radial symmetry
B) a chitinous endoskeleton
C) open circulatory system
D) poorly-developed sensory organs