Download Uconn ECE Biology 1107 &1108 Exam New Update Questions And Correct Answers!! and more Exams Biology in PDF only on Docsity!
Uconn ECE Biology 1107/1108 Exam New Update Questions
And Correct Answers!!
Structure of an amino acid - ANSWER>>Amino group, carboxyl group, R group The permeability of the phospholipid bilayer is determined by? -number of saturated fatty acids, integral proteins in the membrane, and temperature ANSWER>>The
Primary protein structure - ANSWER>>Sequence chain of amino acids Secondary protein structure -hydrogen bonds ANSWER>>Sequence of amino acids are linked by
Tertiary protein structure -helices and pleated sheets ANSWER>>Certain attractions are present between alpha
Quaternary protein structure - ANSWER>>Multiple amino acid chains Where is energy in ATP stored? -phosphate ANSWER>>The bond between the second and third
Allosteric activation -a regulatory molecule binds to a different site on the enzyme. ANSWER>>Active site becomes available to the substrates when
Allosteric deactivation -substrates when a regulatory molecule binds to a different site on the enzyme. ANSWER>>The active site becomes unavailable to the
What is active transport? - ANSWER>>Transport that uses energy via
phosphorylation(ex. Na/K pump) OIL RIG - ANSWER>>Oxidation is losing, reduction is gaining What makes a molecule polar? - ANSWER>>Uneven charge What makes a molecule hydrophobic and hydrophillic? -hydrogen bonds makes a molecule hydrophillic (likes water) ANSWER>>Oxygen to
DNA Replication - ANSWER>> A and G are: - ANSWER>>Purines T and C and U are: - ANSWER>>Pyrimidines What is the role of NADH and FADH2 in cellular respiration? -electron carriers, which travel down the electron transport chain during ETC ANSWER>>They are
What is meant by, "the genetic code is redundant but unambiguous?" -single amino acid may be coded for by more than one codon. ANSWER>>A
Lac operon - ANSWER>> Hypertonic - ANSWER>>Greater concentration of solute (cell shrinks) Isotonic - ANSWER>>Cell stays the same Hypotonic - ANSWER>>Lower concentration of solute (cell swells)
What anatomical structure is composed of two or more tissues? - ANSWER>>Organ Benign tumor -invade neighboring tissue or metastasize. These characteristics are required for a ANSWER>>A benign tumor is a mass of cells that lacks the ability to tumor to be defined as cancerous and therefore benign tumors are non-cancerous. Malignant tumor -capable of producing metastases, may recur after attempted removal, and is likely to ANSWER>>A tumor that invades surrounding tissues, is usually cause death unless adequately treated. Human blood types -the ABO blood group. There are four principal types: A, B, AB, and O. There are two ANSWER>>All humans and many other primates can be typed for antigens and two antibodies that are mostly responsible for the ABO types. Four allelesare involved.
Skeletal muscle contraction: Fast vs. slow twitch muscle fibers -glycolytic fibers fatigue rapidly, while slow oxidative fibers are highly resistant to ANSWER>>Fast fatigue. Muscles that need to be active continuously, such as weight-supportingpostural muscles, contain a higher percentage of fatigue-resistant slow oxidative muscle fibers. When the atria contract, which valves will open and which will close? -ANSWER>>Atrial systole. The aortic valve and pulmonary valve remain closed, while the atrioventricular mitral and tricuspid valves remain open because the pressure gradientbetween the atrium and ventricle is preserved during late ventricular diastole.
Insulin action -triglycerides are also synthesized. ANSWER>>Glucose enters liver cells to synthesize glycogen but
LH and FSH released from - ANSWER>>Pituitary gland Sex hormones are made in - ANSWER>>The gonads
What are antibodies? -counteracting a specific antigen. Antibodies combine chemically with substances that ANSWER>>A blood protein produced in response to and the body recognizes as alien, such as bacteria, viruses, and foreign substances in theblood.
Systemic circulation - ANSWER>> Why do terrestrial animals excrete urea instead of ammonia? Why do aquatic animalsjust excrete ammonia? -can urinate less and conserve water. ANSWER>>We can concentrate urea more than ammonia, so we
Characteristics of epithelial tissue? -body cavities, have a basal side and an apical side ANSWER>>Cover body surfaces, line organs and
Fick's Law -surface area ANSWER>>Gas exchange occurs across thin, moist surfaces with high
Gametogenesis - ANSWER>>Development of egg and sperm cells (occurs in gonads) AutoImmune diseases -structures as foreign (no recognition between self and non-self) ANSWER>>Occur when the body recognizes its own
Prior to menstruation -and the endometrium begins to fall off from the uterus ANSWER>>Egg is not fertilized, corpus luteum degenerates
The nephron is the filtering unit of the kidney - ANSWER>> Monohybrid crosses - ANSWER>>
Stomata -and close at night. Surrounded by guard cells. ANSWER>>Control rate of water loss, open during day for photosynthesis
Nitrogen fixation -to an organic form that the plant can use to make proteins ANSWER>>Ultimately results in the conversion of inorganic nitrogen
Auxin, gibberellic acid, and cytokinins -for the elongation of both stems and roots ANSWER>>Plant hormones that are required
What is alternation of generations? - ANSWER>>Sporophyte and gametophyte Evolution of flowering plants -vascular system. They did not have true leaves or true roots. ANSWER>>Earliest plants did not have seeds or a
Secondary growth - ANSWER>>-width (woody growth) Vascular cambium -in shrubs and trees. It is found in gymnosperms and angiosperms. ANSWER>>Is a lateral meristem that contributes to woody growth
Self-incompatible plants - ANSWER>>Cannot self-pollinate Angiosperm fertilization - ANSWER>> Transpiration -and pressure potential as well as the total water potential ANSWER>>Results from differences between both osmotic potential
Photosynthesis equation - ANSWER>>
Ingredients required for photosynthesis - ANSWER>> Working definition of evolution? -heritable changes in a population spread over many generations. ANSWER>>Evolution is a process that results in
Evolution of multicellular organisms: -transport. Also, interior cells are exposed to different physical and chemical ANSWER>>Required a system that enabled bulk environment than exterior cells. Remember that different cells and tissues inmulticellular organisms arise due to different, complex patterns of gene regulation.
Reproductive barriers - ANSWER>> Populations have traits that are: -success. ANSWER>>Heritable. Some improve reproductive
What is the effect of mutation in evolution? -DNA can cause changes in all aspects of its life. Mutations are essential to evolution; ANSWER>>A change in an organism's they are the raw material of genetic variation. Without mutation, evolution could notoccur.
Developmental homology = - ANSWER>>embryonic homology Endosymbiotic theory -host cell and ingested bacteria could easily become dependent on one another for ANSWER>>The endosymbiotic theory describes how a large survival, resulting in a permanent relationship. Over millions of years of evolution,mitochondria and chloroplasts have become more specialized and today they cannot live outside the cell. Phylogenetic tree - ANSWER>> Sexual selection - ANSWER>>
What is competition? -species in which both the organisms or species are harmed. Limited supply of at least ANSWER>>Competition is an interaction between organisms or one resource (such as food, water, and territory) used by both can be a factor. Competition can occur... -different species ANSWER>>Between members of the same species or
Mutualism - ANSWER>> Commensalism - ANSWER>> Parasitism - ANSWER>> Good luck! - ANSWER>>You can do it!
