Biology Flashcards
(34 cards)
Cell Membrane
Controls what goes in and out of cell
Cytoplasm
Suspends organelles writhing cell, mostly water
Mitochondria
Performs cellulare respiration
Converts glucose & O2 —> energy & CO2
Ribosome
Help make proteins
- structure
- Function
- Regulation
Endoplasmic Reticulum
Transport different materials (proteins) within cell
Vesicles
Transport and store in/out of cell
Golgi Body
pack and carry proteins for transport in vesicles
Nucleus
Contains genetic information (DNA)
Inside: Nucleus, produce ribosomes
Vacuoles
Mostly water, regulates fluidpressure
Cytoskeleton
Framework for cell strucutre
Cell Wall
Proviodes Structure, Outside of cell membrane (Plants only)
Chloroplasts
Photosynthesis, traps suns energy to make glucose (plants only)
Lysome
Break down of materials
Every cell in an organism has the same:
DNA molecule
What are the four nitrogenous bases?
Adenine, Thymine, Citosine, Guanine
What do genes provide instuctions for?
Proteins
What is DNA called in the nucleus?
Chromatin
What does chromatin condense into?
Chromosomes
What is in the center of a double chromosome?
Centromere
What is each half of a chromosome called?
Sister chromatids
Why do unicellular cells divide?
To reproduce an organism and to maintain a large SA/V ratio
Why do multicellular cells divide?.
To reproduce, grow, repair, and replace damage cells, Maintain a large SA/V ratio
What is the purpose of cell division?
- Growth
- Healing and Tissue Repair
- Reproduction
What are the four phases of mitosis? And what comes after?
Prophase, metaphase, anaphase, telophase and cytokinesis