Study questions for biology HESI entrance exam
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | kingdom, phylum, class, order, family, genus, species
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| show | kingdom; species
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| show | 1859
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| show | decent with modification
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| show | water
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| __________ of a molecule is the amount of heat necessary to raise the temperature of 1 gram of that molecule by 1 degree Celsius. | show 🗑
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| Water has a ______ specific heat value | show 🗑
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| ______ is the ability of a molecule to stay bonded or attracted to another molecule of the same substance. | show 🗑
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| show | adhesion
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| What are the 4 most important molecules that are significant in biology? | show 🗑
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| ______ are long chains, or polymers of sugars. These have main purposes as storage, structure and energy. | show 🗑
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| ______ are also known as fats or fatty acids, phospholipids and steroids. | show 🗑
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| show | fatty acid
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| show | saturated
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| ______ fats are solid at room temperature and _____ are liquid. | show 🗑
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| show | saturated fats
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| _______ is the fatty acid associated with membranes and are precursors to hormones. | show 🗑
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| ______ are the most significant contributor to cellular function. | show 🗑
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| Proteins are polymers of 20 ________. | show 🗑
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| show | proteins
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| _______ are types of proteins that act to catalyze different reactions or processes. | show 🗑
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| show | metabolism
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| show | cell
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| show | prokaryotic & eukaryotic
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| Components of cells | show 🗑
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| show | prokaryotic
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| show | eukaryotic
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| show | nucleus
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| show | chromosomes
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| ______ are organelles that read RNA produced in the nucleus | show 🗑
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| Cells with a ______ rate of protein synthesis have a ______ number of ribosomes. | show 🗑
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| show | ER; cytoplasm
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| ER covered with ribosomes that is responsible for protein synthesis and membrane production | show 🗑
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| show | Smooth ER
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| show | golgi apparatus
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| show | lysosomes
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| ______ can hydrolyze proteins, fats, sugars and nucleic acids | show 🗑
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| show | vacuoles
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| What are the 2 distinct organelles that produce cell energy? | show 🗑
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| _______ are found in most eukaryotic cells and are the site of cell respiration. | show 🗑
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| show | chloroplasts
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| ______ is the most important component of a cell and it contributes protection, communication and the passage of substances into and out of the cell. | show 🗑
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| show | cellular respiration
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| show | ATP
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| show | reduced NADH
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| show | glycolysis
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| Glycolysis takes place in the _______ of a cell & produces 2 molecules each of: ATP, pyruvate & NADH | show 🗑
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| show | Krebs cycle
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| show | electron transport chain
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| show | glucose; ATP
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| show | photosynthesis
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| 6CO2 + 6H2O + Light energy ----> C6H1206 + 6O2 is the equation for _________, which is the opposite of cellular respiration. | show 🗑
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| The 2 stages of photosynthesis | show 🗑
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| show | light reactions
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| The 2 categories of cellular respiration | show 🗑
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| show | binary fission & mitosis
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| show | binary fission
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| What happens in binary fission? | show 🗑
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| show | mitosis
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| 5 stages of mitosis | show 🗑
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| Stage of mitosis where the chromosomes are visibly separate, and each duplicated chromosome has 2 noticeable sister chromatids | show 🗑
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| The phase of mitosis when the nuclear envelope begins to disappear and the chromosomes begin to attach tot he spindle that is forming along the axis of the cell | show 🗑
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| The stage of mitosis when all of the chromosomes align along the center of the cell | show 🗑
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| the stage of mitosis when chromosomes start to separate. In this phase the chromatids are considered separate chromosomes. | show 🗑
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| show | telophase
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| show | cytokinesis
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| show | meiosis
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| show | meiosis one, meiosis two
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| Stage of meiosis when chromosomes are duplicated and the cell prepares for division | show 🗑
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| The stages of meiosis one | show 🗑
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| show | prophase I
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| During this phase of meiosis one, nonsister chromatids of homologous chromosomes cross at numerous locations. | show 🗑
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| After the first ______, meiosis two begins | show 🗑
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| show | alleles
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| 2 types of simple traits | show 🗑
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| show | homozygous
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| An organism with alleles of opposite types | show 🗑
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| If a dominant allele is present, the phenotype expressed will be _______ | show 🗑
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| show | if both alleles are recessive
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| show | punnett square
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| The combo of alleles | show 🗑
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| show | phenotype
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| Progeny | show 🗑
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| Study of heredity | show 🗑
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| Family tree that traces the occurrence of a certain trait through several generation | show 🗑
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| show | DNA
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| Year that Watson & Crick described the structure of DNA | show 🗑
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| Adenine bonds with _______ | show 🗑
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| Guanine bonds with ________ | show 🗑
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| show | transcription
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| show | mRNA
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| show | mRNA
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| show | codon
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| Where the anticodon is located | show 🗑
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| tRNA is stopped by a | show 🗑
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| show | polarity of the hydrogen-oxygen bonds
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| show | D- phospholipids
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| What cellular organelle is the site of catabolic pathway leading to cellular energy production? | show 🗑
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| What type of cellular reproduction do bacteria undergo? | show 🗑
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| What is the probability that a recessive trait would be expressed in offspring if 2 parents who are both heterozygous for the desired trait were crossed? | show 🗑
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| In which organelle does transcription begin? | show 🗑
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