- Study guides, Class notes & Summaries

BSC1010L: How Enzymes Work Review Study Test Important to know about enzymes: - CORRECT ANSWER - essential for chemical reactions - never used up - activity is influences by a number of factors An enzyme reduces the energy necessary to start a chemical reaction. This means that the rate of the reaction will _____. - CORRECT ANSWER increase What is true of an enzyme-catalyzed reaction? - CORRECT ANSWER - an enzyme reduces the activation energy - an enzyme speeds up the conversion of s...

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7 pages

Written in 2024/2025

Grade A+

ROSEGRADES

BSC 120 Chapter 3 Exam Questions Correctly Answered. The correct structure of DNA nucleotides can be presented as - CORRECT ANSWER base-phosphate-sugar. phosphate-base-sugar. phosphate-sugar-base. phosphate-sugar-phosphate-base. base-sugar-phosphate-base. This is a characteristic of double-stranded DNA: - CORRECT ANSWER 2 nanometers in width and 10 base pairs per turn 0.34 nanometers per basepair 10 base pairs per turn 2 nanometers in width, 10 base pairs per turn, and 0.34 nanome...

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18 pages

Written in 2024/2025

Grade A+

ROSEGRADES

What is the primary function of cellular respiration? Why bother doing all this? - Correct Answers Cellular respiration converts food molecules into ATP, which is then used as energy How does aerobic glucose catabolism compare with processes like the burning of wood or gasoline? How is it different? - Correct Answers Glucose is oxidized similarly to the fuel while the oxygen is reduced. ATP is produced following aerobic glucose catabolism Explain what redox reactions are, and give examples...

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7 pages

Written in 2025/2026

Grade A+

Rechga

DNA has the capacity to - Correct Answers store genetic information, copy it, and pass it from one generation to the other generation. Chromatin is - Correct Answers DNA and proteins Nucleic acids - Correct Answers DNA and RNA; consist of long chains of nucleotides. Therefore nucleotides are monomers and nucleic acids are polymers. DNA is double stranded while - Correct Answers RNA is single stranded. Each nucleotide consists of 3 main parts; - Correct Answers a nitrogenous base with...

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7 pages

Written in 2025/2026

Grade A+

Rechga

nutrient - Correct Answers substance metabolized by or incorporated into an organism deficiency symptoms - Correct Answers develop in plants that receive to little of a nutrient what does scarcity of nutrients cause? - Correct Answers adaptations that help in acquiring nutrients essential nutrients - Correct Answers substances that a plant needs to complete the reproductive cycle macronutrients - Correct Answersl arge amounts required by plant nitrogen, potassium, calcium, mangensiu...

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21 pages

Written in 2025/2026

Grade A+

Rechga

Compound A ______ is two or more elements combined together in a fixed ratio. Valence Electrons in the outermost shell of an atom are called the ______ electrons. Polar A type of covalent bond where one atom is more electronegative than the other atom. matter anything that takes up space and has mass hydrophilic Water loving substances neutron a type of subatomic particle in the nucleus of an atom that is neutral chemical The exchange and sharing of electrons between atoms is called ____...

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9 pages

Written in 2025/2026

Grade A+

Rechga

What is a spectrophotometer? What does it measure, and how is it measured? - Correct Answers Spectrophotometer is an instrument used to measure the amount of light that is absorbed or transmitted through a sample, at a particular wavelength of light. measures either the amount of light absorbed or the amount of light transmitted What is an absorption spectrum? What value for a substance can be determined by plotting its absorption spectrum? - Correct Answers Absorption spectrum is the patt...

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8 pages

Written in 2025/2026

Grade A+

Rechga

ecology - Correct Answers the study of how organisms interact with their living (biological, biotic) and non- living (physical/chemical, abiotic) environment distribution - Correct Answers where organisms occur abundance - Correct Answers how many occur there dynamics - Correct Answers how they change hierarchy of ecology - Correct Answers ecosystem, community, population, individual hierarchy of ecology: individuals - Correct Answers the organisms themselves hierarchy of e...

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7 pages

Written in 2025/2026

Grade A+

Rechga

List the seven characteristics of life as it is known on Earth. - Correct Answers Cells, metabolism, growth, reproduction, irritability, adaptation, movement Rank the levels of life from atoms and molecules to the biosphere - Correct Answers atoms, molecules, organelles, cells, tissues, organ and organ system, organisms, population, community, ecosystems, and biosphere What is the difference between EUKARYOTES and PROKARYOTES? Classify each of the following organisms as eukaryotic or proka...

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13 pages

Written in 2025/2026

Grade A+

Rechga

7 Properties of Life - Correct Answers1. Order 2. Regulation of Internal Environment 3. Growth and Development 4. Energy Processing 5. Response to the Environment 6. Reproduction 7. Evolutionary Adaptation Theory of Evolution - Correct Answers1. Change through time 2. Unifying theory of biology Change Through Time - Correct Answers Genetic changes of a population through time Unifying Theory of Biology - Correct Answers1. Explains and connects observations from natural world 2. ...

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10 pages

Written in 2025/2026

Grade A+

Rechga

Explain why the scientific method is a myth - Correct Answers Science is not linear. The scientific method is oversimplified and many experiments answer the same question. In actual science, there is a lot of back and forth between questions and evidence. Science is ITERATIVE Define iterative in science - Correct Answers series of experiments that circle back to answer the same question to form a deeper understanding of the topic(think the game of pinball) What is involved in the actual sc...

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9 pages

Written in 2025/2026

Grade A+

Rechga

What is biology? - Correct Answers the scientific study of life Which function is NOT a property of life ? - Correct Answers Populations of organisms rarely change over time What are the two main processes upon which ecosystem depend? - Correct Answers nutrient recycling and energy flow Which substance is NOT recycled but rather is lost from ecosystems? - Correct Answers energy Which structure can perform all the activities required for life? - Correct Answers cells What name is g...

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5 pages

Written in 2025/2026

Grade A+

Rechga

1. Cells are made from other cells. 2. Cells make up living things - Correct Answers What is the cell theory Domain, kingdom, phylum, class, order, family, group, species - Correct Answers Name the order for biological classification Dear King Philip Came Over for Great Sex - Correct Answers DKPCOFGS share - Correct Answers Covalent means polar covalent bonds - Correct Answers one element is more electronegative than the other symmetric - Correct Answers nonpolar covalent bonds a...

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13 pages

Written in 2025/2026

Grade A+

Rechga

1. Observe 2. Question (prediction & hypothesis) 3. Experiment (independent variable, dependent variable, control, data) 4. Evaluate hypothesis 5. Draw conclusions - Correct Answers What is the order of the scientific method myth good- scientists test ideas with evidence bad- oversimplified, implies one experiment can answer a research question, not linear, implies science is an independent effort, no creativity/imagination, ignores technology and society - Correct Answers Good and bad a...

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10 pages

Written in 2025/2026

Grade A+

Rechga

Which of the following is a correct sequence of levels in life's hierarchy, proceeding downward from an individual animal? - Correct Answers Nervous system, brain, nervous tissue, nerve cell Competition is central to the theory of natural selection. Why does competition occur? - Correct Answers Organisms typically produce too many offspring, and resources are limited Which of the following best describes the logic of scientific inquiry? - Correct Answers If my hypothesis is correct, I c...

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8 pages

Written in 2025/2026

Grade A+

Rechga

Deoxyribose sugar and double stranded - Correct Answers Structural characteristics of DNA Double helix structure (2 polynucleotides), strands are complementary (4 nitrogenous bases), and connected by hydrogen bonds - Correct Answers What were the main characteristics described by Watson and Crick? A semiconservative molecule - Correct Answers What characteristics allow for DNA synthesis? Adenine-Thymine Cytosine-Guanine - Correct Answers Complementary base pairing - which ones always p...

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11 pages

Written in 2025/2026

Grade A+

Rechga

The ways the sceintific method is inadequate at describing what sceince is - Correct Answers Oversimplified and makes it seem linear. It misses out on creativity. Why the claim that the evolutionary theory is "just a theory" reflect incorrect understanding of science - Correct Answers It's not just a guess, it's very well thought out. Properties shared by all life - Correct Answers1. Cell and organization 2. Energy use and metabolism 3. Response to stimuli 4. Regulation and...

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4 pages

Written in 2025/2026

Grade A+

Rechga

BSC 120 Chapter 15 Review Practice Test Correctly Answered. Random orientation of homologous chromosomes occurs in __________ of meiosis. - CORRECT ANSWER metaphase I metaphase II prophase II anaphase I prophase I Consider a cell that has four pairs of chromosomes. How many orientations of all chromosomes are possible during meiosis I in that cell? - CORRECT ANSWER 32 16 8 24 4 Consider a cell that has three pairs of chromosomes. What fraction of the gametes produced from this...

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23 pages

Written in 2024/2025

Grade A+

ROSEGRADES

BSC 120 Chapter 1 Final Exam Prep Questions. A) Klebsiella pneumonia and E. coli can easily exchange genetic material. Antibiotic resistance was passed from Klebsiella pneumonia to E. coli by horizontal gene transfer in each of the co-infected patients. - CORRECT ANSWER Gentamicin is an antibiotic that is used to treat bacterial infections. A hospital reports a sudden outbreak of a new gentamicin-resistant strain of Escherichia coli in 5 out of 25 patients of the intensive care unit. On fur...

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6 pages

Written in 2024/2025

Grade A+

ROSEGRADES

BSC 116 Chapter 40 Exam Questions Correctly Answered. Choose the list that correctly ranks metabolic rates per gram of body mass, from lowest to highest. A. fish, dog, mouse B. human, rabbit, snake C. gazelle, lion, elephant D. hummingbird, dog, mouse E. human, cat, mouse, salamander - CORRECT ANSWER A. fish, dog, mouse Which of the following is a correct statement about an organism and its environment? A. The gastrovascular cavity provides the nutrient exchange surface in mamm...

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12 pages

Written in 2024/2025

Grade A+

ROSEGRADES

BSC 2011 Ch. 52 Review Practice Test. An abiotic effect that restricts tree growth at high elevations is __________. - CORRECT ANSWER ultraviolet radiation Factors that influence global climate patterns include all of the following except _________. - CORRECT ANSWER deep ocean currents Characteristic of surface ocean currents is that the ____________. - CORRECT ANSWER North Atlantic and North Pacific subtropical gyres all flow in a clockwise direction Rooted plants are found only i...

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4 pages

Written in 2024/2025

Grade A+

ROSEGRADES

BSC1051C-Chapter 1 Study Exam Questions Correctly Answered. ________ refers to the natural resources and services that keep us alive and other species alive. a. Biodiversity b. Natural capital c. Ecosystem d. Nutrient cycling e. Sustainability - CORRECT ANSWER b. Natural capital An inexhaustible resource can be defined as a resource that ________ . a. can be replenished by natural processes b. has a continuous supply c. does not exist on the earth d. exists in a fixed qua...

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4 pages

Written in 2024/2025

Grade A+

ROSEGRADES