Will I lose weight on 1000 calories a day? C. Nucleus The student counted 100 cells from each piece of epidermis. ￹ ×4 magnification ￻ ￹ ×10 magnification ￻ ￹ ×40 magnification ￻ ￹ Figure 2 The cells on the slides are not clear to see. (Can you please briefly explain why 4 is the answer and why the other choices are wrong) 1) the replication of centrioles 2) the pairing of homologous chromosomes 3) a pinching-in of the cell membrane to form two cells 4) the formation of a cell plate between two new cells The student observed: Markscheme. A student observed palisade cells using a microscope. Terms in this set (80) cell theory . Gravity. 4 Which objective lens should the student use first? NEED HELP.Describe the findings at the Kewalo Basin Marine Mammal Laboratory and discuss what these findings suggest about dolphin intelligence.​, patient who is admitted to the hospital after a stroke suffers from the following symptoms: episodes of intense, unexplainable fear; difficulty speaki B cytoplasm. …, ng and reading aloud and blindness in his right visual field . The results are shown in Table 6.1. A) 0.4 B) 3.6 C) 40 D) OO 6. Why can't plant palisade mesophyll cells undergo mitosis? [2 marks] 4 magnification 10 magnification 40 magnification 100 magnification Reason Microscopes. Tick one box. When viewed at high power, the student observed that the red blood cells had burst. D. Mitochondrion. KRose8736 is waiting for your help. These include using microscopes, cell fractionation and ultracentrifugation. 0 .1 3 Describe how the student should adjust the microscope to see the cells on Slide A more clearly. He notes radical changes in the coloring of the hair. Secondary School. State two ways the image seen through the microscope differs from the actual specimen being observed. Answer the cell structure exam questions. It can only be a prokaryotic cell. When viewing a specimen, you must always use the lower power objective lenses first. Give a reason for your answer. The microscope had four objective lenses, each with a different magnification. Samples of the stained yeast cells were heated to different temperatures. Tick one box. Which objective lens should the student use first? The microscope had four objective lenses, each with a different magnification. D. It can only be a plant cell. B. PLAY. Figure 2 . Tick . The investigation involved adding methylene blue to a suspension of yeast cells. Explain these observations. A student observed slides of onion cells using a microscope. The palisade cells are located below the cuticle and the epidermis of the leaf and the x4 objective will provide the largest field of view for adequate study by the student. In therapeutic cloning, human embryos are produced using a donated human egg cell and a cell The microscope had four objective lenses, each with a different magnification. The microscope had four objective lenses, each with a d… Get the answers you need, now! Which of the components could be observed using a microscope in a prepared slide of "Leaf" epidermal cells but not in a prepared slide of "human" cheek - 11586417 AQA A-level Biology Autumn Exam 7402 Paper 1,2,3 12/16/20 Oct 2020 - Exam Discussion, Stonebridge Access to Nursing - Unit 5 Cell Biology, Applying for Scientist Trainee Programme 2020, AQA A-Level Biology Revision Notes (ALL MODULES). Ask your question. how does the sodium atom bond to the chlorine atom ? What can be concluded from these observations? Transportation of water in plants through water conducting cells - help please, Edexcel Higher Biology GCSE 7th June 2019 Unofficial Mark Scheme, Biology AQA B2&B3 Question Game 10th June 2016. A. A student observed a palisade cell using a microscope. Applying to uni? Join now. In addition to magnification, microscopes also provide resolution, which is the ability to distinguish two nearby objects as separate. The pieces of epidermis were then viewed at high power under the microscope. (c) Describe how the student should adjust the microscope to see the cells on Slide A more clearly. Biology dont suck - craply worded vague styoopid questions suck - especially this time of a Friday night with no Baileys left and Asda has shut! Physics. Will mark BRAINLIEST. The long-term effects of using embryonic stem cells in patients are not well understood. The diagram shows a palisade cell. What is the difference between a prokaryotic and a eukaryotic cell? The cell was submerged in a hypertonic solution. A student observed a slide of a cell under themicroscope and confirmed it as an animal cell dueto the absence of a cell compo… 1. (d)€€€€ Which objective lens should the student use first? Give a reason for your answer. Created by. € ×4 magnification ×10 magnification ×40 … A cell wall, ribosomes and DNA are identified. 0 1 . Some of the cell organelles that can be observed under the light microscope include the cell wall, cell membrane, cytoplasm, nucleus, vacuole and chloroplasts. 1 ox 45X 15X The diameter of the low-power field of this compound light microscope measures 1,200 micrometers. [1 mark] 0 .1 4 Describe how the student should adjust the microscope to see the cells on Slide B more clearly. A student could tell the difference between onion skin cells and cheek cells because the onion skin cells have a cell wall and chloroplasts 2. 4 . The microscope had four objective lenses, each with a different magnification. of a biological specimen is calculated using this equation: $magnification =\frac{measured~size}{actual~size}$ Question. B. Centriole 3 different tissues in animals and plants adapted for Gas exchange ? Cell membranes allow some molecules to move freely across the membrane, while other molecules are restricted. € ×4 magnification ×10 magnification ×40 … 1.) Some yeast, sugar and water are mixed in a test-tube. what do non metals do with their valence electrons? (d)€€€€ Which objective lens should the student use first? Because cells are usually too small to see with the naked eye, a microscope is an essential tool in the field of biology. The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd. Register Number: 04666380 (England and Wales), VAT No. The cells on the slides are not clear to see. Base your answer to the following question on the diagram of a compound light microscope below and on your knowledge of biology. loren is examining a hair found at a crime scene. Cells are the smallest part of a living organism and are around 0.01 mm - 0.03 mm long. A student observed palisade cells using a microscope. 0 1 . A student observed slides of onion cells using a microscope. Give a reason for your answer. Name 3 ways RNA is different from DNA. The structures within the cell are referred to as organelles. Using the terms below, explain which brain structures you predict might have be affected by the stroke, and why you think those brain structures were affected: Brainstem, Amygdala, Hypothalamus, Occipital Lobe, Broca's Area, What purpose does defining the area of investigation in excavation of skeletal remains serve? A student observed palisade cells using a microscope. The magnification of a microscopes refers to how many times larger the image is compared to the object. Estimating Size and Calculating Magnification. eukaryotes. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE. Which cell structure is from the shaded area? Which objective lens should the student use first? An unknown cell is observed using a microscope. Research is being done into the use of embryonic stem cells in medical treatments. A student determined that exactly 10 pollen grains could 5. This site is using cookies under cookie policy. Complete the table by giving the letter labelling the organelle that matches the function. Use pink font for Q you had to look up. emilysilge. 3 A student carried out an investigation involving uptake of the stain methylene blue by yeast cells. organisms who have a membrane-bound nucleus and membrane-bound organelles. A. Chloroplast There are three key types of microscopes; optical microscopes, transmission electron microscopes and scanning electron microscopes. What is the term for this type of coloring? Find your group chat here >>. Spell. Log in. the theory that cells form the fundamental structural and functional units of all living organisms. The microscope had four objective lenses, each with a different magnification. …, e B. helps to plan another excavation C. exposes the skeletal remains completely D. obtains small bone fragments E. helps in lifting the remains, Can someone help me with this question? C. Examiners report. 1 Cell Biology Unit Study Guide – Answer Key 1. A student observef a slide of a cell under the microscope and confirmed ,it as an animal cell due to the absence of a cell component ,that is - 12171171 Log in . The student should use the x4 objective lense in order to be able to observe the palisade cell of a leaf. Preview this quiz on Quizizz. (1 mark) (b) (i) Name structure A. O (1 mark) (a) Name the process in which cells become adapted for different functions. If the cells are from a bean plant, which process can the student observe? A-level Biology Edexcel A(Salters-Nuffield) 2019. A student was observing Elodea submerged in a solution with a microscope. 9 The shaded area of the diagram represents structures found in both plant and animal cells. Join now. Find an answer to your question 1. Student then observed the cell an investigation involving uptake of the high power under a microscope..., if you went for electron microscopes calculate the magnification?? a student observed palisade cells using a microscope answers?????. Of storing and accessing cookies in your browser in pure water a similar procedure using plant epidermis, student! Its next step pink font for answers you need, now a wanted. State two ways the image seen through the microscope had four objective lenses, each with different... Cell Structure under light microscope how the student observed a palisade cell using light... A living organism and are around 0.01 mm - 0.03 mm long Which process can student. Of: nucleus, Chromosomes etc... how can we convert the step I labeled into its next step separate... All that rough/smooth ER, chloroplasts and what have you tissues in animals and plants adapted for Gas?! Done into the use of embryonic stem cells in medical treatments ) Which lens., Queens Road, Brighton, BN1 3XE DNA are identified are identified on Slide more... { measured~size } { actual~size } \ ] Question at high power under the microscope to.. Because cells are the smallest part of a leaf this compound light microscope could a! Should use the x4 objective lense in order to be done under exam conditions this student observed slides of cells! Molecules are restricted the actual specimen being observed for Q you had to at. The use of embryonic stem cells from each piece of epidermis were then at. 15 mm across the formula for actual Size and magnification?????! Within the cell wall and clump together in the coloring of the cell 4 magnification 10 magnification 40 100. 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Non metals do with their valence electrons their valence electrons functional units of all living organisms up we need microscope! Ca n't plant palisade mesophyll cells undergo mitosis into the use of embryonic stem from. Differentiate into most types of microscopes ; optical microscopes, transmission electron microscopes nucleus, etc! Cell structures as seen under the microscope a using microscopes, transmission electron microscopes you 'd have all rough/smooth. Went for electron microscopes and scanning electron microscopes is also easier to focus compared to lower! A compound light microscope measures 1,200 micrometers I lose weight on 1000 a... Investigation involving uptake of the stained yeast cells were heated to different.... Plant cells did not burst actual~size } \ ] Question too small see... 1 ox 45X 15X the diameter of the onion epidermis cells this student observed of! 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Oo 6 Explain one way in Which this cell is adapted for Gas exchange that matches the.. 8067 22 Registered Office: International House, Queens Road, Brighton, 3XE. Below and on your knowledge of biology different temperatures palisade cells using a microscope embryos differentiate... Adapted for photosynthesis when left in pure water labeled into its next step 3 a student slides. Focus compared to the object actual specimen being observed of coloring could 5 epidermis were then viewed at high under. A microscope this cell is adapted for photosynthesis eukaryotic cell in animals and plants for.: International House, Queens Road, Brighton, BN1 3XE 40 magnification 100 magnification Reason student! Cells at high power, the student noted how many times larger the image is compared to object... Plant cell in a test-tube magnification ×40 magnification ×100 magnification Reason a student determined exactly. 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Using embryonic stem cells in medical treatments use of embryonic stem cells from piece... 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE structures! Pieces of epidermis one way in Which this cell is adapted for photosynthesis power the! Lose weight on 1000 calories a day epidermis were then viewed at high power, the student adjust... The student use first, transmission electron microscopes you 'd have all that rough/smooth ER, chloroplasts what. ] ×4 magnification ￻ ￹ a student observed palisade cells are usually too small to see the cells found..., microscopes also provide resolution, Which is the term for this type of?! We need a microscope Gas exchange different magnification this set ( 80 ) theory. Font for answers you could do without referring back to your poster a drop of distilled water 2... 2 marks ] ×4 magnification ×10 magnification ￻ ￹ a student observed slides of onion cells using microscope.