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
Biology Chapter 7
Cells
| Question | Answer |
|---|---|
| Who was the first person to identify and see cells? | Rober Hooke |
| Name one part of the cell theory | All organisms are composed of cells |
| What is the thing flexible barrier around the cell called? | cell membrane |
| Which cell structure contains the cell's genetic material? | nucleus |
| Which cell structure is responsible for making proteins? | ribosome |
| What organelle breaks down food and recycles old organelles so the cell can use them? | Lysosome |
| Which organelle provides the cell with energy? | mitochondria |
| What are two differences between the plant and animal cell? | Cell wall, chloroplasts |
| What type of macomolecule are cell membrane channels made of? | proteins |
| How do molecules move in diffusion(with respect to concentration) | high to low |
| Which type of membrabe transport requires the input of energy? | active transport |
| What is the diffusion of water across a semipermeable membrane called? | osmosis |
| What term refers to cells having different jobs in an organism? | cell specialization |
| What do you casll a group of cells performing a similar funcion? | tissue |
| If you put a cell into a hypotonic solution, where will the water move? | into the cell |
| What is the basic unti of life? | cells |
| What is the name for multiple organs working together to perform a function? | organ system |
| Who was the first to study nature with a microscope? | Anton van Leeuwenhoek |
| Who studied a slice of cork in microscope named cells? | Robert Hooke-1665 |
| Who discovered plant cells? | Matthia Schleiden |
| Who discovered animal cells? | Theador Schwann |
| Who discovered cell reproduction? | Rudolf Virchoff |
| What are the three parts of the cell theory? | All organisms are composed of cells; the cell is the basic unit of life; all cells come from pre-existing cells |
| What structure protects the cell and is made of cellulose in plants | cell wall |
| What type of organism is a prokaryote? | bacteria |
| What type of cells were the earlist cells? | prokaryote |
| What type or cells contain a nucleus with DNA? | eukaryote |
| What type of cells have no mitochondria? | prokaryote |
| What type of cells evolved from prokaryotic cells? | eukaryote |
| what type of cellshave mitochondria? | eukaryote |
| what type of cells have a membrane, cytoplasm, free ribosomes and free DNA? | prokaryote |
| What type of cells have organelles? | eukaryote |
| what type of cells lack membrane bound organelles? | prokaryote |
| And organelle is: | and organ of the cell; has its own job like the organs of our body |
| an animal cell has: | no cell wall, just a cell membrane; centrides involved in cell division |
| Chloroplasts are... | they absorb light, make sugar through photosynthsesis. |
| Cell wall is... | a rigid outer structure, made of cellulose (fiber); carbohydrate found in cell walls |
| large vacuole does what? | removes liquid waste and stores food and water. |
| What are viruses? | not cells; need host to survive; contain DNA o RNA; inject into hose (cannot replicate on their own) |
| What are some functions that occur withing a cell? | digestion; excretion; transportation of cell's products; storage; protection; eivision; mobility; respiration or photsynthesis (plants do both) |
| The nucleus: | DNA= chromosomes housed here |
| What is a chromosome? | coiled DNA: determines our charateristics |
| what are chromatin? | visible protein composing chromosomes |
| How many chromosomes are in the human body? | 46 |
| Muclear membrane: | controls what goes in and out of the nucleus (notice the nuclear pores) |
| Nucleus it the control center. It... | controls activities and reproduction |
| Nucleolus: | makes ribosomes |
| cytoplasm | or cytosol is the gel surrounding organelles (water in balloon) |
| Ribosomes | protein synthesis on the ER |
| Endoplasmic Reticulum | Produces and transports liquids and membrane proteins, modifies |
| rough ER | modifies proteins |
| smooth ER | highway for transport of proteins |
| golgi bodies-golgi apparatus | packages proteins (sacks for making and storing secretions |
| Identify the path of a protein from start to finish | Nucleus gives directions; ribosome makes proteins; ER modifies and transports proteins; golgi packages proteins; cell membrane is where the protein exits the cell |
| lysosome: | contains digestive enzymes; breaks down large molecules |
| provides energy | mitochondria |
| modiefies proteins | Rough ER |
| contols movement into and out of the cell | cell membrane |
| uses sunlight to make sugar | mitochondria |
| contols cell activities | nucleus |
| makes ribosomes | nucleolus |
| packages proteins for transport | golgi apparatus |
| removes liquid waste | lysosome |
| makes proteins | ribosomes |
| liquid portion of the cell | cyoplasm |
| what will happen if the vacuole is drained | the plant will wilt |
| vacuole | storage for food and water |
| whay are plant vacuoles large than animal vacuoles | pressure creates support for leaves and flowers; helps plant stand up |
| mitiochondria | where energy is released; the powerhouse of the cell. uses respiration to convert sugar into ATp |
| what organ in the body would have cells containing a high number of mitochondria | heart-needs more energy |
| cell membrane: | surrounds cells; gives shape to animal cells; inside cell wall of plant cells |
| what is the cell membrane made of | lipid bilayer-2 fat layers; protein channels; carbohydrate chains; semi-permeable |
| hydrophilic and polar inside and outside | attract water |
| hydrophobic and non-polar middle | repel water |
| density | molecules per volume of container |
| diffusion | movement of molecules: gas or liquid |
| law of diffusion | from high concentraion to low concentration; balance the crowding |
| osmosis | movement of water; special case of diffusion |
| equilibrium | concentrations on both sides of membrane are balanced |
| isotonic solution | a solution that is at equilibrium |
| iso means | equal |
| what is passive transport | diffusion of osmosis; goes witht he gradient; no ATP energy required; high to low concentration |
| what is active transport | against the gradient; requires energy; low to high concentrations; |
| hypotonic solution | under or low salt outside relative to cell |
| hypertonic solution | over or high salt relative to cell |
| plasmolysis | cell membranes shrink or expand; dependent on concentrations |
| in a hypotonic solution the cell... | bursts |
| in a hypertonic solution the cell... | shrinks |
Created by:
3j0mk1
Popular Biology sets