Download HESI A2 Entrance Biology- Midterm Exam questions with solid answers 2025 Qs Glycolysis i and more Exams Nursing in PDF only on Docsity!
HESI A2 Entrance Biology- Midterm Exam
questions with solid answers 2025
Qs Glycolysis is the conversion of _______ to ______ in the process of cellular respiration. A) Glucose, pyruvate. B) Pyruvate, glucose. C)NADH, pyruvate. D)NADH, ATP. - n Ans✔ A) Glucose, pyruvate. Qs The oxidation of the NADH molecules to produce oxygen and water in cellular respiration takes place in a series of steps defined as: A)Cellular inspiration. B)Krebs cycle. C)Electron transport chain. D)Cellular conversion. - n Ans✔ C)Electron transport chain.
Qs For every glucose molecule utilized during cellular respiration, approximately how many ATP molecules can be produced? A)14 to 18. B)18 to 25. C)32 to 36. D)68 to 70. - n Ans✔ C)32 to 36. Qs Cells with a high rate of protein synthesis generally have a large number of which of the following cellular structures? A)Mitochondria. B)Ribosomes. C)Lysosomes. D)Golgi apparati. - n Ans✔ B)Ribosomes. Qs A scientist is proposing an experiment to study the effect of a certain chemical on rat brain development. The scientist believes that this chemical will enhance the rats' brain development. Which of the following terms describes this step of the scientific process?
C)Saturated fatty acids often contain two or more pairs of double bonds, unlike unsaturated fatty acids. D)There is no difference between saturated and unsaturated fatty acids. - n Ans✔ B)Saturated fatty acids contain no double bonds, unlike unsaturated fatty acids. Qs Diets that contain high amounts of saturated fatty acids are linked to what disease type? A)Renal. B)Coronal. C)Cardiovascular. D)Pleural. - n Ans✔ C)Cardiovascular. Qs Based on the inherent properties of water molecules, what effect would a large body of water have on the temperature of a climate? A)Increase. B)Decrease. C)Stabilize. D)Destabilize. - n Ans✔
C)Stabilize. Qs Which of the following descriptions relates to water's property of cohesion? A)Water beading together on top of a freshly waxed car. B)An ocean stabilizing the temperature of a region. C)Water dissolving salt to become salt water. D)A bottle of water cracking when left in the freezer. - n Ans✔ A)Water beading together on top of a freshly waxed car. Qs In DNA, adenosine will only bond with which of the following base pairs? A)Adenosine. B)Thymine. C)Guanine. D)Uracil. - n Ans✔ B)Thymine. Qs Which of the following is a correct description of metaphase during mitosis?
Qs What characteristic of water allows for hydrogen bonding between molecules? A)Its high specific heat. B)Its cohesive properties. C)Its covalent bonds. D)Its polar nature. - n Ans✔ D)Its polar nature. Qs Which of the following is the MOST inclusive in the hierarchic system of organization? A)Kingdom. B)Class. C)Genus. D)Species. - n Ans✔ A)Kingdom Qs In which phase of the cell cycle is DNA replicated? A)G B)S C)G
D)D1 - n Ans✔ B)S Qs Which of the following processes reduces cells originally classified as diploid to haploid? A)Meiosis. B)Mitosis. C)Both meiosis and mitosis. D)Neither meiosis and mitosis. - n Ans✔ A)Meiosis. Qs Which of the following is an example of a cell created by meiosis? A)Kidney cell. B)Sperm cell. C)Brain cell. D)Skin cell. - n Ans✔ B)Sperm cell Qs he Krebs cycle is a process described as:
Qs Using garden peas, which of the following scientists discovered the basic principles of genetics? A)Galileo. B)Mendel. C)Curie. D)Hawking. - n Ans✔ B)Mendel. Qs The alternative versions of a single gene are known as: A)traits. B)characteristics. C)RNA. D)alleles. - n Ans✔ D)alleles. Qs What device makes it possible to predict the genotype and phenotype of the offspring of sexual reproduction?
A)Punnett square. B)Chi square. C)PCR. D)Microscope. - n Ans✔ A)Punnett square. Qs The traits which an organism shows (as opposed to what its genes code for), is known by which of the following terms? A)Phenotype. B)Genotype. C)Stereotype. D)Classification. - n Ans✔ A)Phenotype Qs An organism that has a genotype of two dominant alleles for one gene is: A)Heterozygous. B)Homozygous.
A)True B)False - n Ans✔ B)False Qs The term pleiotropy is best defined as: A)A condition in which multiple genes are missing. B)A situation in which one gene remains unexpressed. C)One gene influencing multiple, seemingly unrelated phenotypic traits. D)Two genes affected by a single allele. - n Ans✔ C)One gene influencing multiple, seemingly unrelated phenotypic traits. Qs Which molecules are responsible for the base pairing action in DNA? A)Phosphate groups. B)Sugar molecules. C)Nitrogenous bases. D)Codons. - n Ans✔
C)Nitrogenous bases. Qs A pea plant has alleles for the dominant tall gene (T) and the recessive short gene (t). Therefore, it appears as Tt. Which of the following will correctly describe its phenotype if there is complete dominance? And which describes incomplete dominance? (complete, incomplete) A) Tall, Tall B) Average. Tall C)Tall, Average D)Tall, Short - n Ans✔ C)Tall, Average Qs What is the function of tRNA during DNA transcription? A)tRNA bonds together amino acids and then releases them to create an elongated chain of amino acids. B)tRNA contains codons during DNA transcription. C)tRNA is the piece of DNA produced during transcription. D)tRNA brings the amino acids to the site of synthesis. - n Ans✔ D)tRNA brings the amino acids to the site of synthesis.
Qs It is known that the gene that codes for male pattern baldness depends on the gene for red hair. This type of interaction between alleles is known as: A)Interplay. B)Affectation. C)Genotype. D)Epistasis. - n Ans✔ D)Epistasis. Qs What is the function of the stomach? A)Absorption of nutrients B)Digestion of Nutrients C)Digestion and Absorption of nutrients D)None of the above. - n Ans✔ B)Digestion of Nutrients Qs What is the largest type of biological molecule?
A)Lipid. B)Protein. C)Carbohydrate. D)Steroid. - n Ans✔ B)Protein. Qs Phagocytes in the immune system are responsible for the biological action of: A)Secreting. B)Consuming. C)Altering. D)Building. - n Ans✔ B)Consuming. Qs
