Understanding Resources, Organisms, and Cells: A Guide for April 10, 2014
This educational material covers key concepts in science, focusing on nonrenewable resources, the classification of organisms, food webs, and the distinctive features of animal and plant cells. It includes practice questions related to resource types, autotrophs, and organ systems, as well as information about cell structures and functions. Ideal for students preparing for science exams, this guide facilitates comprehension of essential biological concepts and encourages critical thinking through interactive questions and homework assignments.
Understanding Resources, Organisms, and Cells: A Guide for April 10, 2014
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Presentation Transcript
Thursday April 10th 2014 • Which of the following would be considered a nonrenewable resource? A. sand B. ferns C. coal D. fresh water • Which organism would be considered an autotroph? • A. tomato plant B. giraffe • C. mushroom D. toad • In the food web below, which organism would be considered a secondary consumer? • A. Hawk B. Snake • C. Mouse D. Grass
Food Web Homework! • Sun, leaf buds, deer, panther • Sun, flowers, butterfly, lizard, snake • Sun, bark, beetle, mole, fox • Sun, leaves, caterpillar, spider, snake • Sun, roots, grub, lizard, fox • Sun, seeds, cardinal, hawk, snake
Animal Cells • Turn to page 9 in your packet
Cell membrane cytoplasm lysosome Nucleus Endoplasmic reticulum vacuole ribosomes mitochondria Golgi body
Main Features to Know • Cell membrane- keeps the cell together, but lets in/out chemicals, and proteins. • Nucleus- contains the DNA of the cell. • Mitochondria- the powerhouse of the cell, where energy is converted for use. • Ribosome- contains RNA and protein synthesis. • Cytoplasm- a jelly-like substance filling the cell and surrounding the organelles.
Cell wall cytoplasm Cell membrane vacuole Endoplasmic reticulum nucleus ribosome chloroplast Golgi body mitochondria
Main Features to Know • Cell wall- made of cellulose, gives the plant its structure. • Chloroplast- contains chlorophyll and is the site of photosynthesis in the cell. • Vacuole- a large space in the cell filled with fluid that helps to maintain the shape of the cell.
Parts of a Plant Pistil
Practice Questions • If you were looking at a cell under the microscope and wanted to know if it was a plant or an animal cell which feature would you look for? • A. The presence of mitochondria • B. The presence of a cell membrane • C. The presence of ribosomes • D. The presence of a cell wall • ANSWER- D
Practice Questions • You fall off your bike while attempting a sweet jump on a mountain trail. You are bleeding from a fresh cut on your knee. Which body system responds by sending white blood cells to the injury location? • A. Endocrine B. Immune • C. Respiratory D. Circulatory • ANSWER- B
Practice Questions • Flowers reproduce by spreading pollen. The pollen of a flower is located on which part of the flower? • A. pistil B. style • C. anther D. sepal • ANSWER- C
Homework!!!! • Page 11 due tomorrow
