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Review 1 - Scientific Method and State Labs Flashcards | StudBud
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Review 1 - Scientific Method and State Labs
Review 1 - Scientific Method and State Labs
30 terms
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StudBud Administration
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Prepare for upcoming June Regents exam.
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
What color does glucose indicator change to when starch is present?
changes to dark purple/black
it stays amber/orange
it stays blue
it changes to orange with heat
2
What is the independent variable?
pH
Time
The Y-axis
Number of Colonies of Bacteria Present in Culture
3
Is there a problem if your sample size includes 2 people when you are testing a new drug?
No, 2 is a HUGE number
No, we don't want to risk hurting too many people
Yes, the sample size must be larger to be believable
Yes, we can't test on humans & should test monkeys only
4
What is the name of the technique below?
gel electrophoresis
cloning
restriction enzymes
chromatography
5
How long is the screw?
5.5 cm
51 mm
5.1 mm
51 cm
6
What was added to make Cell A become Cell B?
distilled water
salt water
the Beatles
isotonic water
7
How does water move with a cell is isotonic?
water will move equally in and out
water will move in
water won't move because it's equal
water will move out
8
What body systems are mostly closely involved in ATP production?
digestive and blood
urinary and respiratory
brain and lungs
respiratory and digestive
9
What is the name of the protein that cuts DNA at specific locations?
chromatography
gel electrophoresis
restriction enzymes
muscle
10
A doctor is testing her new medicine for diabetes. Why were some people given a placebo?
a placebo is given to the control group to compare results
a placebo is a type of micro-organism in the ocean
control groups are not important
the experimental group was given a placebo
11
What is the difference about the two fields of view?
This must be a bacteria
The left one was viewed on 100x and the right one on 40x.
The left one was viewed on 40x and the right one on 100x.
They must be different organisms
12
Which statement describes a controlled experiment?
it is the effect of a dependent variable on the independent
it avoids the use of variables
it tests the effect of a single independent variable
it eliminates the need for a dependent variable
13
Natural selection involves limited resources & organisms in a population ________ for survival
dance
compete
die
change
14
What is the name of the technique below?
restriction enzymes
gel electrophoresis
paper chromatography
cloning
15
What are traits that lead to survival and reproduction called?
genetic variation
evolution
adaptations
good genes
16
What is the relationship between time and number of paramecia?
Paramecia are growing exponentially
Paramecia are decreasing over days
Paramecia increased until reaching their carrying capacity
The Paramecia have a predator.
17
What organism is most closely related to the human?
horse
frog
gorilla
pig
18
What process has lead to the variety of finches that live on the Galapagos islands?
natural selection
ecological succession
selective breeding
cloning
19
Which carbohydrate can diffuse?
jalapeños
starch AND glucose
glucose by not starch
starch but not glucose
20
Other than beack characteristics, what other traits can be considered adaptations
disease
camouflage
strong beak
good eyesight
21
Which statement is correct about making a "good" experiment
it is "good" if you change a lot of variables
it is "good" to have lots of data from repeated trials
it is only "good" if it explodes
it's "good" if you write a conclusion before collecting data
22
How does exercise change pulse rate?
pulse rate will increase with exercise
pulse rate decreases then increases
pulse rate will decrease with exercise
pulse rate will not change
23
Why would it be bad to get pure (distilled water) in your blood instead of isotonic?
the red blood cells will stay the same
the red blood cells will increase because water moved out
the red blood cells will increase because water moved in
the red blood cells with decrease because water moved in
24
What color does starch indicator change to when starch is present?
it stays blue
changes to dark purple/black
it stays amber/orange
it changes to orange with heat
25
Which of the following is a valid hypothesis?
If a dog eats fruit, it will weigh less than on a meat diet
Yes, water will affect plants
There were 200 wolves in 1985 and then 500 in 1992.
What would happen to humans during a zombie apocalypse?
26
Which of the following is NOT a way that your body removes waste during exercise?
you sweat to remove salt and cool down
your kidneys filter out metabolic waste from your blood
you drink water because you are thirsty
you exhale carbon dioxide
27
Why can't starch diffuse?
its too little
starch is a carbohydrate
it's too big
glucose cannot diffuse either
28
If an island has a variety of birds with different beaks, what can you conclude?
the birds are adapting to become hippopotamuses
the island must have a variety of food options
the birds must all be carnivores
all birds eat the same thing
29
When does muscle fatigue happen?
it does not occur after exercise
when muscle cells do fermentation and lactic acid builds up
when muscle cells run out of oxygen and ATP production slows
I just want to sleep right now....
30
Which is not a cause of genetic variation?
crossing over in meiosis
random genetic mutations
cloning
recombination of gametes
