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BIO125 Biology Basics Review
BIO125 Biology Basics Review
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Review of terms, concepts, mechanisms from chapters 1-5, 9. Exam 1 material
Flashcards
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Questions
27
Answers
1
Different forms of the same element are called
molecules
isotopes
atoms
compounds
2
The pH scale ranges from 1 to 10
False
True
3
I can provide a thorough and clear definition of osmosis.
Maybe - I should review my notes and the textbook first.
Yup
Mostly
Nope
4
One type of signal molecule will always produce the same response in every target cell it reaches.
False
True
5
What is the pH scale?
It is a log scale that evaluates [H+] and [OH-] concentrations
I don't know but I'll figure it out in time for the exam
It is a scale that is used to measure sourness
It is a scale used to measure the weights of Ph.D.s
6
How do atoms bond to one another?
atoms may form any one of these (and I know the differences between them)!
atoms may form ionic bonds
atoms may form hydrogen bonds
atoms may form covalent bonds
7
Ligand gated ion-channels control the flow of what, into and out of the cell?
ions
nucleotides
carbohydrates
proteins
8
Small molecular subunits which serve as the basic building blocks of polymers are called
monomers
atoms
isotopes
compounds
9
I understand how each of the 4 types of receptors work.
Mostly, I know 3 of the 4
Definitely, I've got all 4 down
I know half of them
I'm still working on it.
10
Which of the following types of signal molecules requires an internal receptor?
polar signal
steroid hormone
Water-soluble signal
hydrophilic signal
11
This type of molecule is used to make sure that plasma membranes become neither too liquidy nor too solid.
sterols
phospholipids
peripheral proteins
integral proteins
12
Which molecule is responsible for target protein dephosphorylation during transduction?
protein phosphatase
protein kinase
13
A pure substance made up of only one type of atom is the definition of a(an)
molecule
radioisotope
atom
element
14
Cell communication involves 3 basic steps. What are they?
No idea
Texting, Texting, Texting
Reception, Transduction, Response
Sending, Receiving, Sending again
15
The form of material transport across a membrane that requires an energy source is called
Osmosis
Facilitated transport
Passive transport
Active transport
16
I can describe the major differences between prokaryotes and eukaryotes.
Duh, of course!
Pretty much
Uh, a what?
I think so. Can I get back to you on that?
17
Which of the following is NOT a characteristic of water?
polar
adhesion
nonpolar
cohesion
18
Which of the following is an example of a monomer?
nucleotide
all of these are examples of monomers
monosaccharide
fatty acid
19
The TRK surface receptor must form a dimer prior to transduction.
True
False
20
Which of the following types of signals requires a surface receptor?
steroid hormone
polar signal
nonpolar signal
hydrophobic signal
21
I can clearly describe the fundamental structure of the plasma membrane.
Nope
I'm about half-way there
Mostly
Yup
22
I can connect the structure of the plasma membrane to the transport functions of the membrane.
Sort-of.
Not yet, but I will soon.
Mostly.
Absolutely.
23
Which molecule is responsible for target protein phosphorylation during transduction?
protein kinase
protein phosphatase
24
Of the three types of surface receptors we focused on, this one is the largest and most complex.
G-protein coupled receptor
ligand-gated ion channel
steroid receptor
RTK (an enzyme-linked receptor)
25
When a cell is placed in a hypertonic solution it wil lose water.
True
False
26
The organelle which is responsible for lipid production is called the
ribosome
mitochondrion
Golgi apparatus
smooth endoplasmic reticulum
27
Cells with specialized internal organelles are called
prokaryotes
animals
plants
eukaryotes