Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Beaver Local 4
BeaverLocal 4
| Question | Answer |
|---|---|
| this scientist used a microscope to examine a piece of cork in 1665 and described it as "being made up of many little boxes" | Robert Hooke |
| a dutch microscope maker who was the first person to observe living cells in 1674. | Anton van Leeuwenhoek |
| a german botanist that concluded that all plants are made of cells in 1838. | Matthias Schleidon |
| german scientist that concluded that all animals are made up of cells in 1839. | theodor schwann |
| german physician that proposed all cells come from existing cells in 1855 | Rudolf Virchow |
| demonstrated that the cell membrane is a physical structure, not just an interface between two liquids in 1931 | Janet Plowe |
| Proposed the theory that certain organelles were once free-living cells themselves in 1970. also known as the Endosymbiont theory | Lynn Margulis |
| the theory that states: All living things are composed of 1 or more cells, Cells are the basic units of structure & function in an organism, and Cells come only from the reproduction of existing cells. | The Cell Theory |
| the term used to demonstrate the 200 different types of cells in your body. | cell diversity |
| Cells are limited inside by the ratio between their outer surface area and what other factor? | their volume |
| a cell component that performs specific functions for the cell. | organelles |
| thin membrane surrounding the cell | cell membrane |
| these lack a membrane bound nucleus | Prokaryotes |
| these have a nucleus and organelles | Eukaryotes |
| both nutrients andwastes must be able to pass through this in order for the cell to survive. this is also selectively permeable. | cell membrane |
| The structure of this depends on the functions the cell performs | the cell membrane |
| All cell membranes are made primarily of proteins and these | membrane lipids |
| these have a polar hydrophilic head and two non-polar hydrophobic tails | Phospholipids |
| - located on the interior and exterior surface of the cell membrane | Peripheral proteins |
| - embedded in the cell membrane | Integral proteins |
| The lipid bilayer behaves more like a fluid than what other state?. | solid |
| the area between the cell membrane and the nucleus | cytoplasm |
| aqueous fluid inside a cell | cytosol |
| This is the “powerhouse” of the cell, the Site of the chemical reactions that transfer energy from organic compounds to ATP and also Has two membranes: smooth outer membrane and folded inner membrane | mitochondria |
| mitochondria have their own what?. | DNA |
| these have the Most numerous organelles, they arent surrounded by a membrane and are Composed of RNA and proteins. are very Important in the synthesis of proteins | Ribosomes |
| A system of membranous tubules and sacs | Endoplasmic Reticulum (ER) |
| Functions as a pathway for molecules to move from one part of a cell to another | Endoplasmic Reticulum (ER) |
| covered with ribosomes (found in cells that make large amounts of proteins) | Rough endoplasmic reticulum |
| no ribosomes (involved in synthesis of steroids in gland cells, regulation of calcium in muscle cells, and breakdown of toxic substances in the liver) | Smooth endoplasmic reticulum |
| The processing, packaging, and secreting organelle | Golgi Apparatus |
| Modifies proteins for export by the cell | Golgi Apparatus |
| Small, spherical organelles that enclose hydrolytic enzymes within single membranes | Lysosomes |
| Enzymes digest proteins, carbohydrates, lipids, DNA, RNA, viruses, bacteria, and old organelles | Lysosomes |
| Network of protein strands in the cytosol that provide support and allows movement of organelles within the cell | Cytoskeleton |
| Made up of microfilaments and microtubules | Cytoskeleton |
| made of actin (function for cell movement and muscle contraction) | Microfilaments |
| function as spindle fibers when the cell is about to divide | Microtubules |
| Hairlike organelles that extend from the surface of the cell | Cilia and Flagella |
| Used for movement | Cilia and Flagella |
| short hairlike organelles that are present in large numbers | Cilia |
| whiplike hairlike organelles that are few in number | Flagella |
| have nine pairs of microtubules arranged around a central pair | Cilia and Flagella |
| Most prominent organelle | Nucleus |
| Surrounded by a double membrane (nuclear envelope) perforated with pores | Nucleus |
| Chromatin is found inside the envelope | Nucleus |
| Stores hereditary information | Nucleus |
| Spherical area inside the nucleus | Nucleolus |
| Site where ribosomes are synthesized | Nucleolus |
| What 3 structures are found in plant cells and NOT animal cells | cell walls, vacuoles, and plastids |
| Rigid outer area that provides support | Cell Wall |
| Contain long chains of cellulose | Cell Wall |
| Large Fluid-filled organelles that store enzymes and metabolic wastes | Vacuoles |
| Surrounded by two membranes | Plastids |
| May store starch or fats or may contain pigments which absorb visible light | Plastids |
| absorb sunlight and convert it to chemical energy through photosynthesis | Chloroplast |
| contain a series of flattened sacs called thylakoids | Chloroplasts |
| Contain a green pigment | Chloroplasts |
| Groups of cells that carry out a specific function | Tissues |
| Several types of tissues that interact to perform a specific function | Organs |
| A group of organs that work together to perform a set of related tasks | Organ Systems |
| Fossil evidence supports that the earliest cells on Earth were simple ______________ | prokaryotes |
| How old are the oldest fossils on Earth? | 3.5 billion years old |
| Huge masses of cyanobacteria that form dome shaped structures in shallow bay areas | Stromatolites |
| help maintain the health of our planet | Stromatolites |
| A group of genetically identical cells that live together in a closely connected group | Colonial Organization |
| Volvox is an example of this | Colonial Organization |
| A type of green algae that exists as a hollow sphere filled with 500-60,000 cells | Volvox |
| the first step towards multicellular organisms | Colonial Organization |
| stronger defenses, ability to attack bigger prey, better chance of survival, ease in reproduction are all examples of this | Advantages of colonial organization |
Created by:
kjones0722
Popular Biology sets