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 3 Cell structure/function
| Question | Answer |
|---|---|
| most cells are smaller than | 0.1mm |
| cells are small because nutrients pass through the _?_ to enter the cell | plasma membrane |
| cells are small because nutrients pass through the plasma membrane to _?_ the cell | enter |
| cells are small because wastes pass through the plasma membrane to _?_ the cell | exit |
| a cell needs enough _?_ to exchange materials with its environment | surface area |
| the amount of surface area (plasma membrane) affects the ability to | get materials in and out of a cell |
| what happens when cells increase in size | the amount of surface area relative to volume decreases |
| what happens if cells become to large | the surface area would be insufficient to service the increasing volume |
| two main types of cells | prokaryotic / eukaryotic |
| eukaryotic cell structures are surrounded by a semifluid medium inside the cell called | cytoplasm |
| what is a nucleus | determines the cells characteristics by coding for the protiens, stores the dna |
| what is a nucleoplasm | semifluid medium inside the nucleus |
| what is a nucleolus | produces ribosomes |
| what is a nuclear envelope | double membrane that has pores through which materials may pass |
| what are ribosomes | directly synthesize protiens |
| where are the ribosomes located | may be free cytoplasm or attached to the endoplasmic reticulum |
| what is a endomembrane system | series of intracellular membranes that compartmentalize the cell |
| what is a endoplasmic reticulum (ER) | consist of membranous channels and sacs |
| what is a rough endoplasmic reticulum | site for protein synthesis, has ribosomes |
| what is a smooth endoplasmic reticulum | lipid synthesis, detoxification and a transport to the Golgi |
| what does a golgi apparatus do | (UPS) collects, sorts, packages, and distributes materials |
| what does a lysosomes do | (garbage system) vessel that contains digestive enzymes that break down materials for the cell |
| what does a vacuoles do | membranes sac that store substances/ water, pigment, toxins |
| what does a peroxisomes do | vessels that carry out various metabolic functions by oxidizing organic compounds |
| choloroplasts are found where | plants and algae |
| cholorplasts contain their own | dna, ribosomes, enzymes (C) |
| choloroplasts: photosynthesis | solar energy is converted into chemical energy within carbohydrates |
| mitochondria is found where | all eukaryotic cells |
| mitochondria contain their own | dna,ribosomes,enzymes (M) |
| choloroplasts is the site of | photosynthesis |
| mitochondria is the site of | cellular respiration |
| mitochondria: cellular respiration | breakdown of food for energy |
| cytoskeleton are | network of connected filaments and tubules that extend from the nucleus to the plasma membrane |
| cytoskeleton maintains what | cell shape |
| cytoskeleton assists what | movement of cell and organelles |
| cytoskeleton assembles what | and disassembles as needed |
| cytoskeleton has three types of macromolecular fibers | actin filaments, intermediate filaments, microtubles |
| actin filament, intermediate filament and microtubles are three types of what cytoskeleton | macromolecular fibers |
| centrosomes and centrioles do what | help organize part of the cytoskeleton (assemble/disassemble) |
| plant cells or animals cells have centrioles | animals cells |
| cilia and flagella are what | hairlike projections that aid in cell movement |
| what does cilia do in the body | help material move through tubes |
| in eukaryotic cells, cilia are much _?_ than flagella | shorter |
Created by:
kelley kelley
Popular Biology sets