- Study guides, Class notes & Summaries

MICR 3033 Exam 2 Questions with Revised Answers Graded A+ 7Q1-How does DNA interact with the core histone nucleosome? - Answer-DNA wraps around the core histone 7Q2-What is the length(fixed)of DNA(in base pairs) that wraps around a core nucleosome? - Answer-147 base pairs 7Q3-What is the 30-nm fiber structure in chromatin? - Answer-solenoid 7Q4-What is meant by the terms Chromatin? Euchromatin? and Heterochromatin? - Answer-Heterochromatin is condensed chromatin which makes it inactiv...

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8 pages

Written in 2024/2025

Grade A+

Perfectscorer

MICR 3033 Final Exam Questions with Complete Solutions

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12 pages

Written in 2023/2024

Classroom

MICR 3033 EXAM 1 QUESTIONS WITH CORRECT SOLUTIONS

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31 pages

Written in 2026/2027

Grade A+

DRVERITY

MICR 3033|Cell and Molecular Biology|TEST STUDY GUIDE Bundle | Verified Q&A|

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9 items

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MICR 3033 Final Tested Questions with Revised Answers Graded A+ 10.1Q1 Describe the steps of M-CDKs activation. - Answer-Cyclin dependent kinases have to associate with a cyclin to activate; M-cyclins associate with the kinase; more steps with an activating kinase, inhibiting kinase, and a phosphatase that all receive input signals to control when M-CDKs are active 10.2Q1 Why are M-Cdk and S-Cdk regulated by sequential cyclin activation in addition to multiple phosphorylation and dephosphory...

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4 pages

Written in 2024/2025

Grade A+

Perfectscorer

MICR 3033 Exam 3 Questions & Revised Answers All Updated Which of the following polymers of glucose is used to store energy reserves in animal cells? - Answer-glycogen The conversion of methane (CH4) to methanol (CH3OH) illustrates what kind of reaction? - Answer-oxidation A chemical reaction that releases free energy is referred to as "energetically favorable." Another way to describe this reaction is: ____. - Answer-spontaneous When atoms lose (donate, transfer) electrons scientists...

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3 pages

Written in 2024/2025

Grade A+

Perfectscorer

MICR 3033 Exam 2 Questions with Complete Solutions Endoglucanases and cellobiohydrolases have the same catalytic center but have a variant configuration of the binding site. Identify, which of the following is TRUE? - Answer-Because the catalytic site is identical but the binding site different both enzymes can interact with the substrate in different ways thus producing different catalytic products. Two molecules are similar but not identical in structure and affect enzyme activity diffe...

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6 pages

Written in 2024/2025

Grade A+

Perfectscorer

MICR 3033 Exam 1 Test Questions with Answers Hemoglobin requires which small non-protein molecule to capture oxygen? - Answer-heme. Enzymes that add or remove a phosphate group are respectively named? - Answer-kinase and phosphatase. Which of the statements about binding and active sites are TRUE? - Answer-a binding site recognizes the substrate and the active site catalyzes the reaction. Endoglucanases and cellobiohydrolases have the same catalytic center but have a variant configura...

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6 pages

Written in 2024/2025

Grade A+

Perfectscorer

10.1Q1 Define three stages of the cell cycle? Correct Answer-Interphase G0: where cells rest G1: where cells grow and expand S: where DNA is replicated G2: where cells repair damaged DNA and duplicate centrosomes Cell division (M) phase Where cells undergo nuclear and cytoplasmic division Each stage has checkpoints that check for completion and accuracy of previous step before starting the next one 10.2Q1 What are cyclin-dependent kinases (Cdks)? Correct Answer-Small family of pro...

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14 pages

Written in 2023/2024

Grade A+

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Which subatomic particle is displaced when two or more atoms combine make a molecule? Correct Answer-Electrons What type of bond is formed when atoms share electrons? Correct Answer-Covalent What determines the number of covalent bonds an atom can create? Correct Answer-the excess or shortage of electrons in its outermost electron shell. Oxygen with 6 electrons in the outer electron shell (that needs 8 to be complete), can make how many covalent bonds? Correct Answer-2 Which of the f...

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11 pages

Written in 2023/2024

Grade A+

cracker

Define three stages of the cell cycle? Correct Answer-interphase: the cell grows and makes a copy of its DNA. m phase: the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells cytokinesis: the cytoplasm of the cell is split in two, making two new cells and begins as mitosis ends. What happens during interphase? Correct Answer-The cell grows, copies its DNA, and prepares for cell division in three steps G1, S, G2. What are cyclin-dependent kinases (Cdks)? C...

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12 pages

Written in 2023/2024

Grade A+

cracker

10.1Q1 Define three stages of the cell cycle? Correct Answer-Interphase G0: where cells rest G1: where cells grow and expand S: where DNA is replicated G2: where cells repair damaged DNA and duplicate centrosomes Cell division (M) phase Where cells undergo nuclear and cytoplasmic division 10.2Q1 What are cyclin-dependent kinases (Cdks)? Correct Answer-A small family of protein kinases that regulate the transition of various phases in the cell cycle. CDKs are small proteins that mainl...

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7 pages

Written in 2023/2024

Grade A+

cracker

All cells that make up an organism contain the exact same DNA sequence (genome) however individual cell-types look and function very differently. Why? Correct Answer-each cell-type expresses a unique set of genes of the genomic DNA. Speaking of genotype and phenotype how are these terms defined? Correct Answer-the genotype defines the genetic information (gene) and the phenotype the outcome of gene expression. Which of the following describes a functional gene? Correct Answer-a gene is def...

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7 pages

Written in 2023/2024

Grade A+

cracker

The energy released by oxidizing glucose is saved in the high-energy bonds of Correct Answer-ATP and other activated carrier molecules Sugars (glucose) ingested from food are broken down by Correct Answer-glycolysis, the citric acid cycle, and oxidative phosphorylation Which of the following describes a breakdown process in which enzymes degrade complex molecules into simpler ones? Correct Answer-catabolism and exergonic reactions Which of the following generates the largest amount of A...

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10 pages

Written in 2023/2024

Grade A+

cracker

Which subatomic particle is displaced when two or more atoms combine make a molecule? a. protons. b. neutrons. c. electrons. d. protons and neutrons. Correct Answer-electrons What type of bond is formed when atoms share electrons? a. ionic bond. b. covalent bond. c. hydrogen bond. d. ionic and covalent bond. Correct Answer-covalent bond What determines the number of covalent bonds an atom can create? a. the number of protons in its nucleus. b. the number of neutrons in its nucleu...

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18 pages

Written in 2023/2024

Grade A+

cracker

7Q1-Describe the double helix nature of DNA. Why is it that DNA is always found as a double stranded, antiparallel and complementary molecule? Correct Answer-The two strands of DNA run in anti-parallel directions and attached to each sugar is one of four types of nitrogenous bases, which make hydrogen bonds. It is antiparallel and complementary so that it has two copies as a safety measure. 7Q2-What are histones and the structural components(DNA/proteins)of a nucleosome? Correct Answer-Histon...

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19 pages

Written in 2023/2024

Grade A+

cracker

Describe a hydrogen bond. Correct Answer-positively charged hydrogen is attracted to negatively charged atoms, intermolecular forces hold these bonds together A carbon atom contains six protons and six neutrons. What are its atomic number, atomic weight, and how many electrons does it have? How many additional electrons must it add to fill its outermost shell? Correct Answer-atomic number: 6 atomic weight: 12 electrons: 6 additional electrons: 4 How is an ionic bond formed? Correct Answ...

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19 pages

Written in 2023/2024

Grade A+

cracker

MICR 3033 Exam 2 Questions with complete solutions

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19 pages

Written in 2023/2024

Classroom

MICR 3033 Exam #4 Questions with complete solutions

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7 pages

Written in 2023/2024

Classroom

MICR 3033 Final Question with Complete Solutions

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7 pages

Written in 2023/2024

Classroom