Shared Flashcard Set

Details

118 test two sem review
final 2
50
Biology
Undergraduate 1
04/26/2008

Additional Biology Flashcards

 


 

Cards

Term
Membrane organelle with digestive enzymes
Definition
lysosome
Term
Alignment of the chromosomes at the cell's equator during mitosis
Definition
Metaphase.
Term
Ribonucleic acid, which derives directly from the splitting of DNA?
Definition
mRNA
Term
Chromosomal structure that holds sister chromatids together?
Definition
Centromere
Term
Spliting of the cytoplasim during cell division?
Definition
Cytokinesis
Term
Prokaryotes unlike eukaryotes lack a nucleus, which stores the oranisms DNA
Definition
True
Term
The term catabolism refers to the macromolecules being split into monomers
Definition
true
Term
Ionic bonds are established through the sharing of electrons among the elements being involved
Definition
False
Term
Phospholipids are the typical fats that make biological membranes?
Definition
true
Term
Hydrolysus is a type of chemical reaction that needs water to occur
Definition
true
Term
Mitochondria are the organelles where cellular respiraton takes place
Definition
true
Term
ATP molecules provide the energy necessary for cells to do work
Definition
true
Term
Cellulose is the polysaccharide stored in animal sells that is the main component of their cell wall
Definition
false
Term
Cells are the building blocks od living organisms
Definition
true
Term
Protien molecules act as catalyst in organisms metabolism and thus speed up metabolic reations
Definition
true
Term
The following photomicrograph shows several human sells stained as large light purple structures with purple nuclei infected with a pathogenic organism shown as small dark purple circles. thiese pathogens are most likely....
Definition
a prokaryote
Term
Only plant cells can successfully complete photosynthesis and the key organelle to proform this function is?
Definition
chloroplast
Term
Atoms that bear apositve or negative charge are known as?
Definition
ions
Term
If carbon as 6 protons and 6 neutrons, it will take ---electrons to make an electrically neutral atom.
Definition
6 electrons
Term
the building blocks for carbohydrates are
Definition
monosaccharides
Term
Making and breaking molecules in the body requires the aid of-----to help the reactins proceed
Definition
enzymes
Term
Protiens are made up of----strung together by---bonds
Definition
amino acids and peptide bonds
Term
DNA
Definition
exhibits base pairing, forms a double helix, is a polymer of nucleotidew, and its nucleotides have 4 different nitrogenous bases
Term
Which of the following is support for the theory of evolution which states that all like on earth comes from a common ancestor
Definition
all of the above--
All life on earth shares a common organic chemistry
all life on earth has the same genectic material.
all life on earth has the same basic celular structures.
all life on earth preforms the same basic metabolic process
Term
All of the following are signs that a website contains reliable scientific information except?
Definition
The site is set up allowing you to buy the product being described
Term
Which if the following sub-atomic particles are found in the nucleus of an atom
Definition
neutrons and protons
Term
which type of chemical bond connects the complementary strands of DNA molecules to each other
Definition
hydrogen
Term
An extenisive system of internal membranes, called the ----------, is where carbohydrates and lipids are manufactured, and protiens are made that will be exported from the cell.
Definition
Gogli Apparatus
Term
The formultion of hypotheses represents a critical step in the scientific process. In the simplest term, what is a hypthesis
Definition
an explination
Term
Of the nutrients listed below, all except one are required by all organisms, which is it?
Definition
silicon
Term
A news report onCNN that describes recently published research on a new treatment for gastric ulcers is an example of an
Definition
secondary source
Term
The type of bond that forms between two atoms when electrons re shared is a?
Definition
covalent bond
Term
what is the correct order of phases during mitosis?
Definition
Prophase-metaphase-anaphase-telophase.
Term
Mad cow disease is believed to be cause by infectous protiens called prions. A prion causes protiens in the brain to change their shape and prions can make compies of themselves. Which of the following statements is true?
Definition
Prions are not alive because they lack matabolism and genectic material
Term
During the crossing over, all of the following happens except?
Definition
Some chromosomes end up with more DNA than their swap-partner
Term
Cellular respiration that consumes oxygwn and glucose takes place within specialized cell organelles. These are known as?
Definition
Microchondria
Term
ATP is composed of sugar, organic base adenine, and ?
Definition
three phosphate groups
Term
In what eukaryotic cell are ribosomes made?
Definition
Nucleolus
Term
How do the concentrations of H+ and OH- compare in an acidic solution
Definition
The concentration of H+ is higher
Term
Hydrolosis is the metabolic reaction during which?
Definition
Polymers split into monomers
Term
All of the following are properties of water except
Definition
water is a catalyst
Term
The most trustworthy source of scientific information derives from
Definition
peer reviewed research publications
Term
Scientist are often hesitant to believe the result of a single experiment testing a particular treatment, even when the results are peer reviewed and stastically significant, this is because?
Definition
all of the above-
the experimental and control group may not have been as alike as possible, and the experiment used a model organism and the results might not be the same for humans, and a single experiment may not have eliminated many alternate hypothesis and an unintentional bias may have affected the results of the experiment
Term
The proper order for scientific process is
Definition
observation, hypothesis, prediction, test
Term
Consider an experiment in which subjects are given a pill to test its effectiveness on reducing the duration of a cold, which of the following is the best way to treat the control group?
Definition
Give the control group a pill that doesn't affect colds.
Term
Why does the average women have more body fat than the average man?
Definition
Women need more body fat in order to maintain a normal menstration and to become pregnant.
Term
Carbohydrates are an excellent source of energy for the body, if a candy bar and a pear contain the same amount of calories from carbohydrates, which is the healthier food?
Definition
the pear because it contains; vitamins, minerals, and fiber.
Term
What is a major difference between saturated and unsaturated fats?
Definition
Unsaturated fats contain carbin to carbon double bonds, but unsaturated fats do not.
Term
Which of the following hypothesis is not testable?
Definition
The dinosaur T-Rex was a scavenger and not a predator
Term
What type of work can ATP be used for inside the cells/
Definition
all
mecahnical work
transport work
chemical work
Supporting users have an ad free experience!