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Bio 210 Exam I Review
Bio 210 Exam I Review
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Exam I Review
Flashcards
33 cards
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Questions
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Answers
1
Diffusion is the passive movement of solutes
down its concentration gradient
against its concentration gradient
2
a cellular material between the plasma membrane and the nucleus
water
Matrix
Cytoplasm
ground substance
3
The two types of cells that exist in the human body are:
lymphocytes and somatic cells
somatic and neurons
somatic and sex cells
chondrocytes and somatic cells
4
According to Cell Theory all cells maintain homeostasis at the cellular level
True
False
5
What occurs in this phase?
Metaphase
sister chromatids align at the metphase plate
DNA replication
nuclear membrane breaks down
6
Which of the following is NOT a type of lipid?
cholesterol
Steriods
polysaccharide
triglycerides
7
The building blocks of lipids are
peptide chains
fatty acid + glycerol
monosacharide
nucleic acid
8
All of the following cells can be found in connective tissue proper except:
macrophages
adipocytes
Neuroglia
lymphocytes
9
An example of an electrolyte in the human body would be
Na+
lipid
sugar
NaCl
10
Glycocalyx is
a protein
a hormone
a carbohydrate that extends off the plasma membrane
a lipid
11
This structure offers cell protection and controls the entry and exit of materials:
plasma membrane
cytoskeleton
cilia
peroxisomes
12
Positive Feedback is
NOT stabilizing
stabilizing
13
Skeletal muscle is
unstriated and involuntary
striated and voluntary
unstriated and voluntary
striated and involuntary
14
A cation is a positively charged ion that has gained an electron
False
True
15
The driving force of osmosis is
water
solutes
hydrostatic pressure
Osmotic Pressure (concentration gradient)
16
What type of chemical bond shares electrons to fill up their valence shells?
covalent bond
nonpolar bond
ionic bond
hydrogen bond
17
phospholipids have a nonpolar head and polar tails
False
True
18
_____appropriately responds to the control center of Homeostasis
variable
Receptors
Effector
stimulus
19
An error that is detected by a receptor and sends a message to the control center is called the
positive feedback
efferent pathway
afferent pathway
negative feedback
20
Unstable atoms will form chemical bonds
True
False
21
mass number can be computed by:
#neutrons + #electrons
#electrons + #protons
#protons + #neutrons
22
Smooth muscle are
involuntary and striated
involuntary and unstriated
23
This process moves substances against its concentration with ATP
Active Transport
Osmosis
Filtration
Diffusion
24
__________is the study of tissues
pathology
cytology
biology
histology
25
A hypertonic environment will cause your cells to lyse.
False
True
26
Ionic bond is
equal sharing of electrons between two atoms
an association of two ions that have opposing charges
27
During this phase
sister chromatids separate and move to opposite poles
Mitotic spindle apparatus forms
nuclear membrane breaks down
DNA replicates
28
All factors affect rate of diffusion except
temperature
molecular size
distance
time
29
Element Neon has 10 protons, therefore it has how many electrons?
8 electrons
2 protons
10 electrons
10 protons
30
A hypertonic Environment would cause a cell to?
Remain neutral
Lyse
cause cell to get hyper
Crenate
31
Cardiac Muscle tissue is found in the
bone
intestines
gall bladder
heart
32
What is the study of cells called?
Cytology
Biology
Histology
Geology
33
Which type of epithelia is found in the trachea?
transitional
stratified cuboidal
simple squamous
pseudostratified columnar