Gr 7 Midterm Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the control center of the cell? | nucleus
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| What organelle stores materials in the cell? | vacuole
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| Define volume. | The amount of space an object takes up
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| What happens during cellular respiration? | Glucose that we eat is broken down and converted to usable energy
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| What is an autotroph? | An organism that makes its own food (plants)
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| What is the difference between active and passive transport? | Active transport requires energy. Passive transport does not.
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| What is the shape of DNA? | double helix
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| TRUE/FALSE: All living things use DNA/RNA to code for their genetic information. | TRUE!!!
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| What organelle is the site of protein synthesis in the cell? | ribosomes
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| How is resolution different from magnification? | Magnification means making the object bigger. Resolution is about how CLEARLY you can see the image.
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| What organelle breaks down cell waste? | lysosomes
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| What is photosynthesis? | The plant cell uses the energy in sunlight to create food
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| Why is it important to only test ONE VARIABLE at a time in an experiment? | To make sure that the results are valid
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| The metric system is based on the number ___________. | 10
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| What product of photosynthesis do many living things need to survive? | oxygen
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| How do we calculate the total magnification of a microscope? | Multiply the power of the eyepiece by the power of the objective lens.
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| What organelle is most responsible for cellular respiration? | mitochondria
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| Mitosis is defined as | The cells nucleus dividing into 2 new nuclei
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| What is the function of the cell wall? | To protect and support the plant cell
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| In DNA, adenine always pairs with | thymine
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| What is a heterotroph? | A heterotroph is an organism that cannot make its own food and must eat other organisms to survive
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| What is homeostasis? | Maintaining stable internal conditions
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| The phase of mitosis where chromosomes line up in the middle is called | metaphase
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| Name the 3 parts of the cell theory. | 1. All living things are made of cells.
2. All cells come from other cells.
3. Cells are the basic units of structure and function in living things.
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| What is osmosis? | A form of PASSIVE transport where WATER moves across a membrane from high to low concentration
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| Which step in the scientific method is referred to as an educated guess? | The hypothesis
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| Who is the father of modern genetics? | Gregor Mendel
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| Which scientist observed single celled organisms which he called animalcules? | van Leeuwenhoek
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| ___________ alleles always show up when present. | DOMINANT
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| What is a hybrid? | An individual with 2 different alleles for the same trait
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| During what part of the cell cycle does DNA replication occur? | Interphase
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| DNA and RNA are both _______________ acids. | Nucleic
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| _____________ is the study of living things. | Biology
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| What is a phenotype? | The physical trait that is visible in an organism
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| What is the name of the pigment that captures sunlight in plants? | Chlorophyll
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| The rungs of the DNA "ladder" are made of | One pair of nitrogen bases (Either A/T or C/G)
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| The steps used to test the hypothesis are called the | experiment
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| Name the phases of mitosis in their correct order. | prophase, metaphase, anaphase, telophase
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| How are respiration and photosynthesis related? | They are opposite reactions
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| What is diffusion? | The movement of molecules across a semipermeable membrane from high to low concentration. (a form of passive transport)
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| Name 2 ways DNA and RNA are different. | 1. DNA is double stranded/RNA is single stranded
2. In DNA adenine pairs with thymine. In RNA adenine pairs with Uracil)
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| How are mitosis and meiosis different? | Mitosis creates cells that are exact copies and meiosis creates cells with 1/2 the genetic information. (sex cells)
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| Name the two organelles only found in PLANT CELLS. | Cell wall and chloroplasts
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| What is the function of the endoplastmic reticulum? | It is a series of pathways in the cell
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| What is the function of the mitochondria? | This is where cellular respiration takes place
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| What happens to our Gummy Bears when we soaked them in water? Why? | They swelled up because osmosis caused the water to move into the Gummy Bear.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
cwalczak
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