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LEAP Review

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  • What is the source of energy for cellular respiration?
    Sugar
  • What is fermentation?
    A type of cellular respiration that creates ATP in the absence of oxygen
  • What phase are the chromosomes lined up at the cell's equator?
    Metaphase
  • T/F Genetic variation is a factor of natural selection
    True
  • What happens to energy during photosynthesis?
    The energy is stored as sugar in plants
  • What phase are the chromosomes condense and the nuclear envelope begins to break down?
    Prophase
  • A nucleotide is deleted from a sequence, is what kind of mutation?
    Frameshift Deletion
  • What is the energy storing molecule?
    ATP
  • What kind of cells have a nucleus?
    Eukaryotic Cells (animal & plant)
  • Why does cancer occur?
    mutation in a cell's DNA uncontrolled cell growth
  • How to viruses reproduce?
    With a host either the lysogenic or lytic cycle
  • T/F: Anaerobic respiration does not require oxygen.
    True
  • Mitosis is the division of what kind of cells?
    Somatic (body) cells, they are diploid
  • That phase does the cytoplasm divide, resulting in two new cells?
    Cytokinesis
  • What happens to ATP in order to release energy?
    The outer phosphate bond is broken
  • Are all mutations a negative thing? Explain.
    Not all mutations are negative, some mutations can be neutral (like blue eyes), or positive (like HIV resistance) However, negative mutations do exist.
  • What phase does the chromosomes disperse into chromatin, and the nuclear envelope reforms?
    Telophase
  • What eukaryotic cell has a cell wall?
    Plant Cell
  • T/F Viruses are living?
    False
  • T/F Individuals among a population that are better adapted to their environment leave more offspring
    True
  • Amino acids are the building blocks of ?
    Proteins
  • What type of RNA: helps transfer correct amino acids to make a protein
    tRNA
  • Why does DNA rely on RNA? Why can't DNA deliver the instructions to the ribosomes directly?
    DNA cannot leave the nucleus
  • What is smaller? Virus, bacteria, plant cells
    A virus
  • What shape is DNA?
    Double-helix
  • What is the smallest living unit?
    Cells
  • What are traits that have become common in a population because it favored natural selection
    Adaptation
  • List the steps of Mitosis
    PMAT
  • What is the pigment found in chloroplast that is primarily responsible for light absorption?
    Chlorophyll
  • The clown fish is one individual organism. However, it lives in a coral reef with many other clown fish. These clown fish make up a ?
    Population
  • Homologous structures that are shared among two or more organisms suggest that the organisms share a ?
    common ancestor
  • What are the base pairing rules in DNA?
    A --> T & C --> G
  • What type of RNA: carries a copy of DNA's code outside the nucleus?
    mRNA
  • DNA is found where in a eukaryotic cell?
    Nucleus
  • What is a monomer of DNA?
    Nucleotide
  • What kind of cells do not have a nucleus?
    Prokaryotic Cells (bacteria)
  • What phase is the cell undergoing routine functions, growing and preparing for divison?
    Interphase
  • What is the source of energy for photosynthesis?
    Light Energy
  • Where in a plant cell is light absorbed and sugar is produced?
    Chloroplast
  • What phase do the chromosomes begin to move apart, to opposite poles of cell.
    Anaphase
  • A nucleotide is swapped for a different one, what kind of mutation is this?
    Substitution
  • Meiosis is the division of what kind of cells?
    Gametes (egg and sperm) they are haploid
  • T/F: Competition is a factor of natural selection
    True