BIO205s PDF - Biology Past Paper Questions

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Click Click to to download download A-PDF Watermark more more DEMO: Purchase NOUN NOUN PQ from www.A-PDF.com PQ from from to remove NounGeeks.com NounGeeks.com the watermark FBQ1: The process of turning genes on and off is called _______ Answer: Gene regulation FBQ2: ________is often mistakenly thought to be the final part of telophase. Answer: Cytokinesis FBQ3: The process of splitting the daughter cells apart is called ------------- Answer: Cytokinesis FBQ4: Mitosis is made up of two processes;............. and........................ Answer: Karyokinesis, cytokinesis FBQ5: In humans during mitosis, the double chromosomes are split to produce ----------- - single chromosomes Answer: 92 FBQ6: In organisms with more than one set of chromosomes such as humans, random mating produces -------- and -----------. Answer: Homozygotes and heterozygotes FBQ7: The process by which cancer cells can invade other cells and spread to other location of the body is called ------------- Answer: Metastasis FBQ8: The process of cell birth and cell death is termed ---------------. Answer: cell turnover FBQ9: Environments having a lower osmotic pressure is said to be --------- Answer: Hypotonic FBQ10: Cells which undergo a series of rapid divisions before reaching functional maturity are called _____. Answer: Cancer cells FBQ11: The Prokaryotic Ribosome is made up of -------- and -------- Answer: RNA, protein FBQ12: The cytoplasm of a eukaryotic cell is also called ------------- Answer: Cytosol FBQ13: The major function of the Smooth Endoplasmic Reticulum is the synthesis of --- -------------- Answer: Lipids FBQ14: --------- is the endocytotic process in which a cell membrane encloses asmall amount of the surrounding liquid and its solutes in tiny pinocytotic vesicles Answer: Pinocytosis FBQ15: Lysosomes are manufactured by the -------------- Click Click to to download download more more NOUN NOUN PQ PQ from from NounGeeks.com NounGeeks.com Answer: Golgi apparatus FBQ16: ----------- is a repository for genetic information and cell control Answer: Nucleus FBQ17: Proteins are constructed from a set of ------ amino acids and have distinct three- dimensional shapes Answer: 20 FBQ18: The primary structure of a protein refers to the sequence of -------- in the chain. Answer: amino acids FBQ19: The two main shapes of secondary structure of protein are --------- Answer: α helix and β sheet FBQ20: -------- structure of a protein is the interactions between proteinsubunits that result in the protein being classified as fibrous, globular or conjugated Answer: Quaternary FBQ21: --------------- proteins are messenger proteins which help to coordinate certain bodily activities Answer: Hormonal FBQ22: Carrier proteins which move molecules from one place toanother around the body are called ____ Answer: Transport Proteins FBQ23: Proteins which are specific in actions are referred to as ____. Answer: Enzymes FBQ24: Reverse transcriptase are essential component of -------- Answer: Retroviruses FBQ25: Transcription is the transfer of genetic information from ------- to ----- Answer: DNA, RNA. FBQ26: Translation is the synthesis of a polypeptide under the direction of ----- Answer: mRNA FBQ27: Each nucleotide consists of how many portions? Answer: 3 FBQ28: The monomers from which nucleic acids are constructed are called ----. Answer: Nucleotides FBQ29: The longest part of the cell cycle is ---------------- Answer: Interphase FBQ30: _______ cells lose their capability to divide once they reach maturity. Click Click to to download download more more NOUN NOUN PQ PQ from from NounGeeks.com NounGeeks.com Answer: Nerve FBQ31:........... is the process where one cell splits off from its sister cell and ends the cell division Answer: Cytokinesis FBQ32: The usual method of prokaryote cell division is ------------ Answer: Binary fission FBQ33: Progamme cell death is otherwise known as ______ Answer: Apoptosis FBQ34: Cellular senescence is a state that occurs in response to______ Answer: DNA damage FBQ35: Inhibition of protein synthesis during __________ phase prevents the cell from undergoing mitosis. Answer: G2 MCQ1: The name of ------- and --------------- are linked to the structure of DNA. Answer: Watson and Crick MCQ2: Which of these organelles deals with the breakdown of sugar molecules into energy Answer: Mitochondrion MCQ3: Which of these is not involved in cell cycle? Answer: Increase in size MCQ4: The red blood cells must divide at a rate of --------------------- per second Answer: 1.2 million MCQ5: Which of these factors does not lead to declining cell division rates? Answer: declining levels ATP MC6: In cell cycle, the G2 Phase is collectively known as Answer: Interphase MCQ7: A resting phase where the cell has left the cycle and has stopped dividing. This phase in the cell cycle is ---------------- Answer: G0 MCQ8: Which of these phases is not found in interphase? Answer: G0 MCQ9: Which of these statements is not correct about G1 phase? Answer: The duration of the phase is constant MCQ10: Significant protein synthesis occurs during which phase of interphase? Click Click to to download download more more NOUN NOUN PQ PQ from from NounGeeks.com NounGeeks.com Answer: G2 phase MCQ11: The phase in the cell cycle that is marked by synthesis of various enzymes that are required and needed for DNA replication is -------------- Answer: G0 phase MCQ12: Which of these organisms undergo closed mitosis? Answer: Aspergillus MCQ13: Regulation of the cell cycle involves the following except -------- Answer: Cyclin of cell MCQ14: Perception of various signals in the cells include the following except Answer: cell quiescent MCQ15: Which of these is not characteristic of prometaphase? Answer: Kinetochore microtubules are shorten.  MCQ16: The chromosomes have aligned at the metaphase plate. Which stage of cell division is this? Answer: Metaphase MCQ17: Cell turnover is rapid in all the following except in ------------------------ Answer: Liver MCQ18: The process of splitting the daughter cells apart is called ------------ Answer: Cytokinesis MCQ19: Cell Turnover involves the following except --------------------- Answer: Cell differentiation MCQ20: In humans, meiosis occurs in Answer: Ovaries MCQ21: Cytokinesis in a plant cell is characterized by ------------------ Answer: a pinching off of the cell membrane to divide the cell MCQ22: Which of these is not correct about cytoplasmic membrane? Answer: The phospholipids form a single layer in which most of the proteins are tenaciously held MCQ23: Which of these RNA contains information for protein synthesis Answer: mRNA MCQ24: In the nucleus of eukaryotic cells, the genetic material is complexed with protein and organised into linear structures called Answer: Chromosomes MCQ25: What is the charge of the side chain of Aspertic acid? Click Click to to download download more more NOUN NOUN PQ PQ from from NounGeeks.com NounGeeks.com Answer: Negative MCQ26: The most important breakthrough in neurocytology and neuroanatomy came in 1873 when ----- developed the 'black reaction. Answer: Golgi MCQ27: The idea of spontaneous generation was refuted by----------- Answer: Louis Pasteur. MCQ28: ---------------- was credited with the primary thoughts of Evolution Answer: Anaximander MCQ29: Nucleus was found in epithelial cells in ----------- Answer: 1781 MCQ30: ------------- was the first to recognise the nucleus as an essential constituent of living cells Answer: Robert Brown MCQ31: The longest part of cell cycle is Answer: Interphase MCQ32: The energy acquired during G2 is used in Answer: cell division MCQ33: A chromosome that failed to separate during anaphase is said to be Answer: non-disjunction MCQ34: An arm of a chromosome may be broken and the fragment is lost, this may lead to Answer: Deletion MCQ35: A fertilized egg is called Answer: Zygote