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BIO Exam I
BIO Exam I
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1
The composition of the following polymers are true:
Lipids are the prime source of them
Complex carbohydrates are made of sugars
Proteins are made of amino acids
They are produced by the sea from particles from space
Lipids or fats are made of fatty acids and glycerol
DNA is made of nucleotides
2
The following is true about Bacteria
Some bacteria need oxygen gas to survive.
Some bacteria can only survive in environments with oxygen gas.
Some bacteria can only survive in environments without oxygen gas.
Some bacteria can survive in environments with or without oxygen gas.
3
Define Osmosis
The rate of osmosis is not affected by temperature or pressure changes
Net movement of water across a semipermeable membrane
Random movement of molecules, higher concentratate to lower conconcetate
Movement of water from a lower concentration to a higher concentration
4
For a trait to evolve in a species it must.
Benefit the individual organism by helping it to think better.
Benefit the individual organism by helping it get sustenence.
Benefit the individual organism by helping it to survive and reproduce.
Benefit the individual organism by helping it to fight off predators.
5
The following is true about the plant, animal, and fungi kingdoms
Fungi use photosythesis for energy
All three kingdoms possess nuclei and organelles.
Animals do not ingest food.
Plants convert light energy into chemical bonds by absorption.
6
What type of Bacteria live in extreme environments similar to those of the ancient Earth?
Anbacteria
Archebacteria
Eubacteria
Ancient Protists
7
Mitosis is the process by which
Two nucleus become one nuclei
One nucleus becomes two identical nuclei
Two copies of each chromosome becomes four nuclei with a copy of each
8
The following are true about cells
Endocytosis allows them to absorb from outside
Cells can secrete molecules to the outside environment by Exocytosis
Cells can take in water from the outside environment by pinocytosis.
Eukaryotic cells are not compartmentalized.
9
A cycle of haploid (1n) and diploid (2n) phases in sexually reproducing organisms.
Alternation of Generalism
Localism
Alternation of Genotypes
Alternation of Generations
10
What is the age of the Earth
4 billion years old
A billion years old
4.5 billion years old
4.5 million years old
11
Hydrolysis can be define as
The molecule of Hydrogen and Oxygen are removed
The molecule of Hydrogen and two Oxygens are fused
The molecule of Hydrogen and two Oxygens are synthenised
The molecule of Hydrogen and two Oxygens are added
12
The following are gasses from the early Earth's atmosphere from which organic chemicals have been formed
Carbon Dioxide, Oxygen, Water Vapor & Potassium
Oxygen, Carbon Dioxide, Lithium & Hydrogen
Carbon Dioxide, Oxygen, Nitrogen & Krypton
Nitrogen, Water Vapor, Carbon Dioxide & Methane
13
The following is true about the cell cycle:
Chromosomes are separated during the mitosis phase
DNA replication occurs in the Gap II phase
A cell can spend can weeks or years in the S phase
Production of proteins necessary for mitosis occurs in the Gap I phase
14
The following statements are true about bacteria
Bacteria can reproduce asexually.
Bacteria can be viewed by the human eye
Bacteria are the oldest known form of life existing today
Bacteria do not have a nucleus.
Bacteria do not have membrane bound organelles.
Bacteria is the reproduce sexually and asexually
15
The following is true about translation
Transfer DNA binds to amino acids
Every three bases codes for an amino acid
Ribosomal DNA binds to messenger RNA.
Ribosomal DNA has enzymatic activity.
16
Organic compounds such as fats, sugars, and amino acids formed spontaneously from the early atmospheric gases and energy
False
True
17
The following occurs during protein synthesis:
Translated from DNA
RNA polymerase recognizes a sequence of bases complimentary to a stop codon
RNA polymerase transcribes strand of the DNA to make two copies message RNA
RNA polymerase binds to the gene.
Creates Enzymes that allow for Osmosis
Homeostasis is achieved after Protein Synthesis
18
The most primitive organisms to have a nucleus are
Protists
Viruses
Nucluei
Motesites
19
The following is true about the cytoskeleton:
It is involved with internal movement of organelles and chromosomes
It organizes cell components
It it produced within human bones
It gives shape to the cell
20
Proteins folds can be stabilized by hydrogen bonds, disulfide bridges, ionic bonds, and hydrophobic interactions
False
True
21
The correct order of size from smallest to largest of the following is
Electron, Proton, Atom, Molecule, Virus, Eukaryotic Cell, Prokaryotic cell
Proton, Electron, Atom, Molecule, Virus, Prokaryotic Cell, Eukaryotic cell
Electron, Proton, Atom, Virus, Molecule, Prokaryotic Cell, Eukaryotic cell
Electron, Proton, Atom, Molecule, Virus, Prokaryotic Cell, Eukaryotic cell
22
The following represents the structure of RNA
Ribose---Phosphate with a Hydrogenous Base
Ribose---Phosphate with a Phosphorous Base
Ribose---Phosphate with a Nitrogenous Base
Ribose---Phosphate with a Neonic Base
23
What is Random Movement of molecules in aqueous solutions called?
Passive transport
Active transport
Osmosis
Diffusion
24
The following are true about symbiotic relationships
Symbiotic relationships always involve two species
Parasites harm their hosts
All symbiotic relationships involve physical contact between two organisms
Parasites can evolve into commensalists which can evolve into mutualists
Commensalists do not harm their hosts.
Mutualists benefit their hosts.
25
What type of Bacteria can live in modern environments on the Earth?
Archebacteria
Anbacteria
Ancient Protists
Eubacteria
26
Which form of reproduction can lead to greater diversity of genes in offspring?
Binary Fission
Mitosis
Budding
Meiosis
27
The following are true about fungi
They are eukaryotes.
They reproduce by sexual or asexual means.
They exist in parasitic and in mutualistic relationships
They are mushrooms that spread onto animals
They live most of their life cycle as haploid (1n) gametophytes.
They act as decomposers in the carbon cycle.
28
In an hypotonic solution there is more solute outside cell which can cause the cell to swell and lyse
False
True
29
The following are true about protein structure
Secondary of a protein is the twisting and folding of the amino acid chain
Tertiary of a protein is the three dimensional shape of the folded chain
The primary structure of a protein refers to its sequence of amino acids
Proteins are the products of the muscles of the heart
The most difficult portion of the creation of protein is protein synthesis
Two or more folded polypeptides consists quaternary structure of a protein
30
Meiosis is the process by which
One nucleus becomes two identical nuclei
Two nucleus become one nuclei
Two copies of each chromosome becomes four nuclei with a copy of each
31
The following are true about the carbon cycle:
All organisms have an equal impact on the carbon cycle
Decomposers release carbon back into the atmosphere
Carbon Dioxide is only released by human activities, not natural processes.
Heterotrophs take carbon from cells of other organisms to their own cells
Autotrophs take carbon from carbon dioxide into organic molecules
Decomposers feed off of dead organisms
32
In an hypertonic solution there is more solute outside cell which can cause a cell to dehydrate.
False
True
33
Bacteria are the only organisms in the world that can convert atmospheric nitrogen into forms usable by other organisms
True
False
34
The function of a cell membrane is to
Regulate what enters and leaves the cell
Help the cell move around an assist in sensing the environment
Attract sustenance
Produce messages to be sent to other cells
35
Genetic information is passed on from parent to offspring in molecules known as
DNA & RNA
Genotype
RNA
DNA
36
Some bacteria need O2 to survive, some survive with or without, and some can only survive in environments w/ no O2
False
True
37
Enzymes decrease the rate of a reaction
True
False
38
What happens when salts are added to an aqueous solution?
The relative concentration of water splits
The relative concentration of water remains the same
The relative concentration of water is increased
The relative concentration of water is decreased
39
What is biology?
Study of Life
Study of Organisms
Study of Humans
Study of Animals
40
Using the scientific method, we perform in the following order.
Test, make observation, retest
Make predictions, Make observation, make predictions from hypothesis, test
We make an observation, formulate a hypothesis, make predictions
Make observation, make hypothesis, make predictions from hypothesis, test
41
The following statement is false about protists
They may be one celled organisms.
They don't reproduce sexually, only asexually or binary fission or budding
Some survive by photosynthesis, or by ingestion or through absorbion
They possess a nucleus.
42
Dehydration Sythesis can be defined as
The molecule of Two Hydrogens and Oxygen are removed
The molecule of Two Hydrogens and Oxygen are added
The molecule of Two Hydrogens and Oxygen are fused
The molecule of Two Hydrogens and Oxygen are synthenised
43
During the process of protein synthesis
Protein is transcribed into DNA which is translated into RNA.
DNA is transcribed into Protein which is translated into RNA
DNA is transcribed into RNA which is translated into protein.
RNA is transcribed into DNA which is translated into protein
