BIO 212 Q&A EXAM COMPILATION BUNDLE

benefits of gene regulation -Conserves energy -Expression in appropriate cell type -Expression in correct developmental stage eukaryotes & prokaryotes both control gene expression at: transcription, translation, and post-translation 3 additional gene expression controls in eukaryotes: chromatin re...

Which organelle contains most of a cell's DNA?Nucleus Which organelle carries out cellular respiration?Mitochondria What is composed of DNA and protein?Chromatin Ribosomal subunits are manufactured by the...Nucleolus Where does protein synthesis occur?Ribosomes What manufactures cellular membr...

Which of the following mutations would be most likely to have a harmful effect on an organism? -a single nucleotide insertion downstream of, and close to, the start of the coding sequence -a single nucleotide deletion near the end of the coding sequence -a deletion of three nucleotides near the midd...

what is a protist in the most general sense? An informal group of primarily aquatic eukaryotic organisms with diverse body forms, types of reproduction, modes of nutrition, and lifestyles -Algae, water molds, slide molds protozoa what are some different body plans of protist? -Mostly unicellular -s...

It's cold outside, but excessively hot in Col 150. Cation X+ is more concentrated on the inside of a cell. Many ions of various types are passing through channels in the membrane. We know from this set of facts that this cell has a positive membrane potential A cation more concentrated inside a ce...

If cells are grown in a medium containing radioactive 32P-labeled phosphate, which molecules will be labeled? Nucleic Acids If a double-stranded DNA sample were composed of 10 percent thymine, what would be the percentage of guanine? 40 If one strand of a DNA molecule has the sequence of bases 5'...

Starting at the resting potential of a neuron, if K+ and Na+ were suddenly allowed to freely cross the membrane, K+ would move ______ and Na+ would move _______ following their concentration gradients. A. Out of the cell; out of the cell B. Into the cell; into the cell C. Out of the cell; into the c...

Noradrenaline effect on pacemaker cells G Protein-->Increased cAMP--> Increased flow through funny channel--> HR Na+ equilibrium potential membrane potential that is required to stop a net flow of ions across the membrane Threshold potential membrane potential that leads to the opening of...

Components of a nucleotide 1. phosphate group 2. 5-carbon sugar 3. nitrogenous base How do nucleotides polymerize to form nucleic acids? Via condensation between the hydroxyl on one nucleotide and the phosphate group on another. This results in a new covalent bond and releases a molecule of water. ...

Enveloped Virus A virus that has a membranous outer covering over its capsid Role of viral surface protein/spikes Provides means of attachment to host cell surface Possible configurations of viral nucleic acids --single-stranded DNA --double-stranded DNA RNA hybrid --double-stranded DNA circular -...

What filaments maintain cell shape (pull), divide animal cells into 2, ad move organelles/ cytoplasm (2 coiled strands)? Actin filaments (microfilaments) What filaments maintain cell shape (pull) and anchor the nucleus (fibers wound into thick cables)? Intermediate filaments What filaments maintai...

Which characteristic of a cell most influences the rate of movement of materials into and out of the cell? Surface Area Compared with a smaller cell, a larger cell of the same shape has ________. less surface area per unit of volume When are my office hours? Monday through Thursday 1-2pm, but you ...

The sequence of one strand of DNA is shown below. Which of the following is the sequence of its complementary strand? 3′ ATTTGGCC 5′ 5' TAAACCGG 3' DNA polymerases are enzymes that build DNA. They catalyze ____ reactions leading to the formation of ____ bonds. condensation; phosphodiester A ...

Which of the following is the correct order of relative size from smallest to largest? a phospholipid, a protein channel, a virus, a prokaryotic cell How does one determine the number of covalent bonds an element will likely form? the number of valence electrons What is the correct order of permea...

evolution change in the genetic composition of a population from generation to generation descent with modification the passing on of traits from parent organisms to their offspring Microevolution evolutionary change within a species or small group of organisms, especially over a short period. ge...

A compound contains hydroxyl groups as its predominant functional group. What is true of this compound? It should dissolve in water A chemist wishes to make an organic molecule less acidic. What functional group should be added to the molecule? Amino From its atomic number of 15, it is possible to...

Pasteur used two types of flasks in his famous experiment: an open-top and a swan-necked flask. What was the experimental variable? a.Type of flask b. Access to air c. Access to microbes in the air d. Type of glass e. I do not know c. Access to microbes in the air What properties make water a...

What functions do organisms need to perform to survive? Regulate water and ions, nutrition, internal transport of materials, sensory signals, movement, reproduction, and defense Define adaptation and describe what types of features might be adaptations. adaptation is the biological mechanism by whi...

Which of the following is the correct order of relative size from smallest to largest? A phospholipid, a messenger RNA, a virus, a prokaryotic cell How does one determine the number of covalent bonds an element will likely form? The number of Valence electrons What is the correct order of permeabi...

What are the five characteristics of living things? Using energy, made of cells, process information(genes), reproduction, and evolution cell theory all organisms are made of cells and come from pre-existing cells (In aqueous solution) List bonds from weakest to strongest -covalent, hydrogen, ioni...