Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Human Biology > Module 1 Practice Questions > Flashcards

Module 1 Practice Questions Flashcards

1
Q

On the basis of one or more observations of natural phenomena, a testable explanation called a _______ is formed.

A

Hypothesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A hypothesis is tested with a series of procedures called _________.

A

experiments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Results from experiments called ____ either support or do not support the hypothesis.

A

data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The data help scientists to form ____ some of which may encourage them to redesign their experiments or formulate a new hypothesis.

A

conclusions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Categorize the following choices to distinguish between a control group and an experimental group.
Manipulated in an experiment
Might receive a placebo
Used as a foundational point for comparison
Receives identical treatment as other groups except for one variable
Not manipulated in an experiment

A

Experimental
Manipulated in an experiment
Receives identical treatment as other groups except for one variable

Control
Might receive a placebo
Used as a foundational point for comparison
Not manipulated in an experiment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Scientific studies are published in scientific journals after they have been examined by experts and gone through a(n) ________process.

A

review

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Scientific journals ensure that they only publish research that is conducted properly by credible scientists. This research must be accurate and _____

A

unbiased

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Based upon what scientists read in journals, they may wish to_______research conducted by others, or further study an aspect of the previous work.

A

replicate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Scientific journals are more ________resources compared to magazines, websites, or books containing information from secondary resources.

A

reliable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The result is plotted on the ___ axis

A

y

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Values collected in experiment

A

several different dots on graph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The experimental variable is plotted on the ____ axis

A

x

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

This statistical information tells us how uncertain a particular value is

A

Standard error

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When observing relationships between a variable and a result, scientists must note that not all ________are truly causations.

A

correlations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Because there is always a possibility that the results of an experiment are due to ______ or a variable not being measured, scientists employ statistics when reporting results.

A

chance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Results are accompanied by a(n) _________ value, which is calculated using several factors.

A

probability (p)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Low probability values accompany results which are _________ ____________.

A

statistically significant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Other statistical analysis is also used for scientific data. For instance, ________ ______ is calculated to determine how uncertain a particular value is.

A

standard error

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The smallest unit of an element that still retains the chemical and physical properties of that element is called a(n)

A

atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Why is He positioned above Ne in the periodic table?

A

They both have a full outermost orbital.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Two or more atoms joined together through the sharing of electrons are called a(n)

A

molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Atoms that share electrons have what type of bonds?

A

covalent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

CaCl2 is a salt that forms as the result of what type of bond? How do you know?

A

ionic
Metal – Metal = Metallic.
Metal – Nonmetal = Ionic.
Nonmetal – Nonmetal = Covalent.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Which molecule is the most abundant in the human body?

A

water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Which of the following characteristics of water is most responsible for the sinking of the Titanic?
Frozen water is less dense than liquid water.
26
On a warm day in April, Tina jumped into the swimming pool. To her surprise, the water was really cold. Which property of water did she discover?
The temperature of liquid water rises and falls slowly.
27
William noticed water mysteriously climbing up a capillary tube. This is an example of which property of water?
Water molecules are cohesive.
28
Which of the following is not one of the properties of water? Water has a high heat of vaporization The frozen form is more dense than the liquid form. Water molecules are cohesive and adhesive. Water has a high heat capacity.
b
29
Which of the following is one of the four classes of organic molecules found in cells? vitamins lipids nutrients minerals nuclei
lipids
30
Sugars with three to seven carbon atoms are called monosaccharides. disaccharides. trisaccharides. polysaccharides. steroids.
a
31
Identify the main function of carbohydrates in the body.
Function as short-term energy source.
32
Starch, cellulose, and glycogen are alike in that they
are all made of glucose
33
How are fats, phospholipids, and steroids alike?
They do not dissolve in water
34
The monomer unit of a protein is
amino acids
35
Which of the following is a function of proteins? enzymes quick energy main component of the cell membrane genetic material digest cell waste
a
36
When two amino acids combine via a dehydration reaction
a peptide bond is formed.
37
The sides of the DNA ladder (backbone) are
sugars and phosphates.
38
Which of the following nitrogenous bases is found in DNA?
cytosine
39
Which of the following is a feature of a nucleotide?
nitrogenous base
40
What are the folds in mitochondrial membranes called?
cristae
41
If the mitochondrion is the result of endosymbiosis, what membrane of the mitochondrion represents the engulfing vesicle?
the outer mitochondrial membrane
42
Which of the following structures is present in both eukaryotes and prokaryotes?
plasma membrane
43
The movement of water across a semi-permeable membrane is called
osmosis
44
A solution is at equilibrium across a plasma membrane. If 50 molecules were to enter the cell, how many molecules would need to exit the cell in order to maintain the equilibrium?
50
45
Often when a person is admitted to the hospital, an intravenous solution of normal saline is begun. Since this does not harm the patient, what is the tonicity of normal saline compared to your blood?
isotonic
46
Choose the CORRECT statement about solute concentrations or particles inside and outside the cell.
In an isotonic solution, the amount of water inside and outside the cell is equal.
47
Brad placed a drop of blood in some distilled water. What happened to the red blood cell?
cells burst
48
What cell structure is composed of a stack of slightly curved saccules that are important in packaging and secretion?
gogli apparatus
49
The grainy-looking substance inside the nucleus is composed of
DNA and proteins
50
If a cell lacked ribosomes, it would not be able to
synthesize proteins
51
Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion, then
vesicles must travel from the Golgi to the cell surface.
52
What type of microscopy provides a three-dimensional view of the surface of an object?
scanning electron microscope
53
Angela would like to look at living algae from pond water. What type of equipment should she use?
compound light microscope
54
The phospholipid bilayer that surrounds/maintains the integrity of a cell is called a
plasma membrane
55
What is the name of the semi-fluid medium inside the cell?
cytoplasm
56
The plasma membrane contains how many layers of phospholipids?
2
57
In the fluid-mosaic model of the plasma membrane, the phospholipid molecules are oriented so that the ________Blank heads are facing the outside environment and the ________Blank tails are facing the interior of the membrane.
hydrophilic; hydrophobic
58
Which of the following is a function of the plasma membrane?
marks the cell as belonging to a particular individual
59
Which model currently describes the structure of the plasma membrane?
fluid-mosaic model
60
A short chain of sugar attached to a protein molecule on the plasma membrane is called
a glycoprotein
61
Which of the following can cross the plasma membrane because of its selective permeability?
gases such as oxygen and carbon dioxide
62
What cell structure is composed of a stack of slightly curved saccules that are important in packaging and secretion?
gogli apparatus
63
What is the obvious dark-stained structure within the nucleus that contains ribosomal RNA called?
nucleolus
64
The grainy-looking substance inside the nucleus is composed of
DNA and proteins
65
How large is a nuclear pore in the nuclear envelope?
larger than a ribosome
66
If a cell lacked ribosomes, it would not be able to
synthesize proteins
67
What do the SER and RER have in common?
the formation of transport vesicles
68
What is the main function of the ribosomes in the cell?
to synthesize proteins
69
Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion, then
vesicles must travel from the Golgi to the cell surface.
70
Which organelle is involved in packaging and shipping cellular materials?
Golgi apparatus
71
What cellular organelle is especially abundant in phagocytic white blood cells?
lysosomes
72
Which of the following is associated with the cytoskeleton?
microtubules
73
Which of the following is a function of the cytoskeleton?
maintain a cell's shape
74
The sum of all of the chemical reactions that occur in a cell collectively are called
metabolism
75
In a metabolic pathway, substrate Z is broken down to form products Y and X. Y is further broken down into products V and W. How many enzymes are required for this metabolic pathway?
two
76
Which of the following steps in the breakdown of glucose directly requires the use of oxygen?
electron transport chain
77
What is the maximum number of ATP molecules produced during aerobic respiration?
38
78
Identify which of the following is not a potential source of energy for the human body.
DNA
79
Which of the following is the first step in cellular respiration?
glycolysis
80
Since all organisms carry on cellular respiration, all living cells must contain mitochondria.
False
81
Fermentation results in a greater yield of ATP than aerobic respiration.
false
82
During the breakdown of ATP, heat is released.
true
83
If you could remove all the phosphate in the cell, what would happen to the ATP cycle?
It would stop when all the ATP had been converted into ADP.

Human Biology (26 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions