Exam I, 12 November 2003 7:30 am - 8:50 am
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Chapter 19: Carboxylic Acid Derivatives: Nucleophilic
19.1: Nomenclature of Carboxylic Acid Derivatives
19.3: General Mechanism for Nucleophilic Acyl Substitution
Mechanism occurs in two stages. The first is addition of t
Fall 2015 -2016
Lab Coordinator: Layane Hajjar
Room 106A Biology
Office Hours: Monday 10-11, Thursday 10-11
The Process of Science
Biology 210 - HUMAN BIOLOGY
Instructor: Dr. Nada Sinno Saoud
Biology Dept. Rm. 205- Ext.3901.
Lectures: Section 1, M, W & F from 8:00-9:00 a.m. Biol.004.
Section 2, T & Th. 11:00-12:15 Phy.329
The process by which water is "pulled" up through the xylem columns of plants and evaporated out of the
leaves is called
A. root pressure.
D. adhesion of water molecules.
E. cohesion of water molecules.
Plant tissues that contain cells capable of repeated division and are found at the root and shoot apices are
A. primary growth tissues.
B. secondary growth tissues.
C. ground tissues.
D. meristem tissues.
E. mesophyll tissues.
The most recent techniques developed in the biological sciences allow the manipulation of DNA with the
ultimate goal of intervening directly with the _ fate of organisms.
The evolution of eyespots on butterfly wings shows that they were adapted from different genes in
different species. This is an example of _ evolution.
An alternation in the timing of a developmental event caused by a genetic mutatio
The hypothesis of _ proposes that meteors or cosmic dust may have brought complex organic
molecules to Earth.
Organelles such as the nucleus are not present in _ organisms.
Prokaryotes were the only organisms for about _ billion
Charles Darwin argued that evolution is accomplished by the process of natural selection. Which of the
following is not important to the concept of natural selection?
A. Most organisms are capable of producing more offspring than typicall
Plant cells that give rise to two cells, one of which is free to differentiate into various kinds of cells that
contribute to the plant body, are called
A. endodermal cells.
B. primary cells.
C. lateral cells.
D. parenchyma cells.
Protists move chiefly by either flagellar rotation or by cytoplasmic streaming called _
The formation of a structure called a _ is important to many parasites that must survive
a harsh environment between hosts.
Over long segments of chromosomes, the linear order of mouse and human genes is the same. This is
called conservation of _.
Genes with the same ancestral sequence are known as _.
Two genes within an organism that arose from the
In _ organisms, the primary function of a gene in a cell is to participate in regulating the body
as a whole and not to responding to the cell's immediate environment.
Fungi are decomposers and obtain their food by _ the organic molecules released by the action
of secreted enzymes.
Fungi, together with bacteria are the principal _ in the biosphere.
The symbiotic relationship between green alga
An animal with a single hollow nerve cord, a flexible rod on the dorsal side of the primitive gut, and
pharyngeal slits is a(n) _.
The most diverse and successful vertebrate group, the _, provided the base for invasion of land by
A _ is a circular or U-shaped ridge around the mouth, bearing either one or two rows of ciliated,
Brachiopods develop as protostomes, but they show _ cleavage.
In their basic body plan, mollusks have a visceral
_ occurs when a chemical signal secreted by the roots of one plant blocks the germination
of nearby seeds or inhibits the growth of a neighboring plant.
E. The systemic response
In most Cnidarians, fertilized eggs give rise to free-swimming, multicellular, ciliated larvae, known as
You discover an animal that is clearly multicellular, but does not have cells organized into tissues. The
animal appears to h
The essence of heredity is the ability of cells to use the information in their DNA to bring about the
production of particular _, thereby affecting what the cells will be like.
_ are viruses that attack bacteria.
D. Common cold
_ is(are) the genetic material for all cellular organisms and some viruses.
Nucleotides have phosp
Viruses are _ -coated fragments of DNA or RNA that have become detached from the genomes of
cells and have the ability to replicate themselves within cells.
A _ can contain DNA or RNA as its genetic material, but not both.
A _ locus exhibits more variation than is expected by mutation.
Migration and hybridization between individuals of adjacent populations causes gene _.
A fertilized egg is called a _.
_, the initial period of division in a zygote, is not accompanied by any increase in the overall size
of the embryo.
Plants can remove harmful chemicals from the soil by the process of
A. glandular secretion by leaves.
B. CO2 activation.
E. root nodule formation.
Which of the following is not a natural process o
A genetic _ contains the distances between the gene loci measured in terms of the frequency of
Of the 23 pairs of human chromosomes, 22 pairs are similar in the location of genes a
Each of the significant properties of a cell (its growth, reproduction, and responsiveness to its
environment) requires _.
Energy is defined as:
B. the capacity to do work
Bacteria divide by binary _, in which the cell divides into two nearly equal halves.
Most eukaryotic cells go through a repeating process of growth and division referred to as the cell
The special molecules that have large structures and characteristically made by living organisms are
known as _.
Organic molecules contain a specific carbon-based core to which