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Exam 3 review Flashcards | StudBud
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Exam 3 review
Exam 3 review
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1
We use microbes to study and manipulate eukaryotic DNA for all these reasons, EXCEPT
microbes can grow great quantities of a target substance
microbes are quick to multiply in the laboratory
microbes are small, inexpensive to maintain & easy to house
microbe mutation provides variation for eukaryotic cloning
2
What is the basic functional unit of the nervous system?
a neuron
the spinal chord
neurotransmitters
the brain
3
What is the function of the accessory organs of the digestive system?
To store food until is ready to be digested
To secrete hormones to help in the digestion of food
To secrete and storage enzymes to aid in the digestion
To digest the lipids
4
Technique used in forensics to identify individuals or to establish paternity
hypersequencing
restitution
DNA sequencing
DNA fingerprinting
5
Which of the arrangements below is the correct hierarchy for a multicellular organism
individuals, organ systems, organs, cells, tissues
cells, tissues, organs, individuals, organ systems
cells, organs, tissues, organ systems, individuals
individuals, organ systems, organs, tissues, cells
6
Genetic engineering has revolutionized the pharmaceutical industry through the ability to
make generic drugs
use bacteria to produce mass quantities of a protein
use porcine proteins to treat disease
use bovine proteins to treat disease
7
What is the respiratory system of a fish?
Gills
Skin
Lungs
Diffusion
8
Agarose gel electrophoresis is a technology that allows
various sized fragments of DNA to be visualized
an electrical charge to energize various protein molecules
a gelatin substance to be used for separating nucleotides
a pattern to form from genes on a chromosome
9
Today, what is the trend in measuring the Earth’s biodiversity?
steadily increasing with each year
maintaining status quo
significantly decreasing overall
The Earth’s biodiversity cannot accurately be measured
10
What is the purpose of valves in the heart, in the pulmonary artery and the aorta?
to allow only red blood cells through
to prevent back flow of blood
to control the pace of the heartbeat
to prevent blood flow
11
How do terrestrial organisms acquire water?
They soak it up through their skin
All of the above
They drink it
They extract it from food
12
Which of the following is not an adaptation of a desert mammal to deal with water/salt balance?
Specialized structures to store water
Special body coverings to prevent water loss
Special mechanisms to minimize water loss in urine and feces
Live in moist environments
13
Which of the following properly matches the organ system of an animal with its proper function?
Nervous: communication, primarily external
Endocrine: elimination of metabolic wastes
Respiratory: absorption of nutrients
Circulatory: body form
14
How do terrestrial organisms lose water to the environment?
They lose it in feces and urine
They lose water through evaporation from the respiration
All of the above
They lose water through evaporation from skin.
15
What are the main characteristics of the Kingdom Fungi?
multicellular, autotrophic, cells with thick cell walls
multicellular, autotrophic, cells without cell walls
multicellular, heterotrophic, cells without cell walls
multicellular, heterotrophic, with thick cell walls
16
Hormones are:
the same as electrical nerve impulses
chemicals released into the blood forcommunication purposes
steroids that stimulate nerve cells during times ofstress
dietary supplements needed for vitamin production
17
What is recombinant DNA?
is DNA formed by replication of an existing DNA strand
is DNA formed by splicing RNA into existing DNA strands
is DNA formed by joining together DNA of different organisms
is DNA formed from synthetic nucleotides
18
Most end products of digestion are absorbed into the circulatory system from which structure?
large intestine
small intestine
stomach
rectum
19
What are the main characteristics of the Kingdom Plantae?
multicellular, heterotrophic, cells without cell walls
multicellular, autotrophic, cells with thick cell walls
multicellular, heterotrophic, with thick cell walls
multicellular, autotrophic, cells without cell walls
20
Restriction enzymes or restriction endonucleases act as molecular
erasers
super glue
magnifiers
scissors
21
All the following are advantages of GMO plants, except
Edible vaccines
Cheaper production cost
Higher resistance to pests
Higher nutrient content
22
What tissue's major function is the movement of internal parts or movement of the body?
muscle
adipose
epithelial
cardiac
23
Tendons attach a _______ to a _______
muscle, muscle
ligament, ligament
muscle, bone
ligament, muscle
24
A vehicle for carrying foreign DNA into a hostbacterium is called
a vector
mRNA
an ambassador
a sedan
25
What is the method of reproduction that results in the highest degree of variability?
asexual
sexual
cloning
homozygous
26
Which of the following describe the value of Biodiversity?
Ecological services
Economic
Recreational
All of the above
27
Through which structure does food NOT pass during its digestive journey in a human?
rectum
small intestine
liver
esophagus
28
The preservation of biodiversity is dependent upon all of the following factors EXCEPT:
preserving habitat
restoration ecology
citizen involvement
human domination
29
The barriers listed below account for the first line of defense of the immune system, EXCEPT
Acidity of stomach
Salivary enzymes
Mucus
Skin
30
Which of the following stresses is placed on organisms that live in a marine environment?
They lose enzymes to their environment
They tend to lose water to the environment
They tend to gain water from the environment
They must remain impervious to their environment
31
The movement of oxygen from the alveolar sacs into the blood:
requires receptor molecules on the alveolar saccells
requires transport proteins
requires active transport and is preplanned
is passive and spontaneous
32
Technique used to clean up the environment using bacteria
biospectophotomety
bioremediation
bioturbation
biodiversity
33
All of the following statements about ovulation are true, EXCEPT
ovulation is controlled by hormones
ovulation is the release of a single egg from the ovary
ovulation begins monthly at puberty
ovulation is an event that begins the menstrual cycle
34
All the following systems are active in the process of picking up a papaya and eating it EXCEPT
reproductive
nervous
muscular
digestive
35
How is the water/salt balance maintained in a Paramecium (unicellular organism)?
Na pumping
Gills
Active transport
Osmosis/difussion
36
Which of the tissues below traps pathogens and prevents them from spreading throughout body?
spleen
lymph nodes
thymus
red bone marrow
