ECU Biology 1100 Q&A Bundle

Organisms on earth are composed of molecules and compounds that are constructed primarily of what four elements? carbon, hydrogen, oxygen, nitrogen A potential new organism has been discovered. Which of the following would be the most conclusive in confirming it is a life form? detection of cells ...

1) Send sugar to mitochondria for conversion to ATP 2) Store as starch 3) Manufacture cellulose for growth What are three things plant cells can do with the glucose molecules they produce? Carbon dioxide, sunlight energy, & water. Glucose & oxygen What materials are needed for photosynthesis & what...

1)Which pf the following contains an amino group? A) glucose B) triglyceride C) ATP D) amino acid E) starch D) amino acid 2)Unicellular organisms are found in which domain(s) A) Archae and Bacteria only B) Archae, Bacteria, and Protists C) Archae, Bacteria, and Eukarya D) Bacteria only E) Archae on...

The first step in converting genetic information into proteins is transcription Transcription Synthesis of an mrna version of the instructions stored in DNA Template strand RNA polymerase performs this synthesis by transcribing only one strand of DNA The other DNA strand is called non-template, o...

Sex-linked gene gene located on the X or Y chromosome X-linked genes genes that are considered recessive and located only on the X chromosome Y-linked genes genes found on the Y chromosome; Passed from father to son. Barr body dense body formed from a deactivated X chromosome found in the nuclei ...

Golgi apparatus Stacks of flattened membranes called cisternae, in which proteins are modified (for example, glycosylated) after they are synthesized Chloroplast Site of reactions that use energy from sunlight to fix inorganic carbon (CO2) onto organic compounds Cytoskeleton Support network for ma...

Which of the following statements regarding a DNA double helix is true? The amount of adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of cytosine. DNA replication uses each strand of a DNA molecule as a template for the creation of a new strand. When one...

Mitosis the division of the genetic material in the nucleus Cytokinesis the division of all the cytoplasmic organelles Meiosis a variation of cell division that creates gametes Chromosomes any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order Chromatin...

What is the cellular respiration equation? C6H12O6 + 6O2 --> 6CO2 + 6H2O + energy What is a catabolic pathway? a metabolic pathway that releases energy by breaking down complex molecules to simpler molecules (enzymes to go to next step) What is a redox reaction? an oxidation reaction paired wit...

If the sequence of the 5'-3' strand is AATGCTAC, then the complementary sequence has the following sequence: 3'-TTACGATG-5' In which direction does DNA replication take place? 5' to 3' What portion of a DAN contains okazaki fragments? lagging strand? Which type of point mutation would have ...

Essential Elements of Life carbon, hydrogen, oxygen, nitrogen (make up 96% of body mass) Of the 92 natural elements, these are the key ones needed by an organism to live a healthy life and reproduce trace elements elements required by an organism in only minute (very small) quantities (less than 0....

Energy is neither ____ or ____. It simply ________. Created, destroyed, changes form What are the 2 types of energy? Kinetic, Potential Kinetic Energy (def, @molecular lvl) Energy of Motion; Thermal Energy (heat production through consistent motion) Potential Energy (def, @molecular lvl) Energy o...

Photo system consists of a reaction center in the complex (a type of protein complex) surrounded by light-harvesting complexes Photo system II (PS II) Functions first; best at absorbing a wavelength of 680nm Photo system I (PS I) Best at absorbing wavelength of 700nm Linear Electron flow Flow of ...

Meiosis produces what type of cells? Gametes (sex cells) Mitosis produces what type of cells? Somatic cells Mitosis + Cytokinesis are responsible for? (3) Growth of cells, Wound Repair, Asexual Reproduction Gene section of DNA that encodes a specific RNA Chromosomes are wrapped around... Histone...

Phosphofructokinase Enzyme that Catalyzes a reaction in which ATP is both a substrate in the reaction and an allosteric inhibitor of the enzyme Pyruvate Dehydrogenase Uses Pyruvate as a substrate and products of the reaction end up inside the mitochondrion. Hexokinase Transfers a phosphate from AT...

The Calvin Cycle 3 Steps 1. Carbon Fixation 2. Reduction 3. Regeneration Carbon Fixation Turns 3 times, Involves the incorporation of CO2 molecules into RuBP using the enzyme RUBSICO, this produces 2 3-phosphoglycerate molecules Reduction Reduction and phosphorylation of 3-Phosphoglycerate to G3P,...

Amino Acid An organic molecule with both an amino group and a carboxyl group. At the center a an amino acid is a Carbon atom called the alpha carbon. The alpha carbon has 4 groups attached to it; A carboxyl group, an amino group, a hydrogen atom, and a R group (side chain) What are the characteris...