Evolution of Cells
What two organelles in plants originated from endosymbiotic bacteria-like cells?
chloroplasts and mitochondria
What cell part makes proteins??
ribosomes
What is the function of cholesterol inside the cell membrane?
increase membrane fluidity
The type of molecular transport that requires energy and moves molecules against the concentration gradient
active transport
If a red blood cell is placed in a hypertonic solution, what will happen to the cell?
shrivel
Why is it more beneficial for cells to be large??
surface area to volume ratio limits the rate at which cells can obtain nutrients and materials and get rid of waste
Which organelle found in all Eukaryotic cells produces ATP?
mitochondria
Which part of a phospholipid is nonpolar?
lipid tails
What type of transport does not require energy?
Passive
If a plant cell is placed inside hypotonic solution, what will happen to the cell?
Grow and lysis
What are the 3 parts of the Cell Theory?
All organisms are composed of cells Cells are the basic unit of life Cells come preexisting cells
A cell is found in a lake that has ribosomes and chlorophyll. We can assume that the cell also has which of the following as well? Lysosomes, mitochondria, Golgi Body, Ribosomes, Chloroplast
chloroplast
What biomolecule transverses the phospholipid bilayer?
When sodium and Potassium is pumped in and out of a neuron, what type of transport is taking place?
When you increase the concentration, what happens to the Solute Potential?
decreases
What is the theory describes the evolution of eukaryotes.
Endosymbiosis
Which organelle is involved in recycling material, especially breaking down lipids?
lysosomes
Which structure on the cell membrane acts as an antigen, or surface identity marker?
glycoprotein or glycolipid or peripheral protein
What is required for facilitated diffusion?
protein
What is the i for salt?
2
What evidence supports the Endosymbiotic Theory?
mitochondria has its own dna, chloroplast has its own DNA, mitochondria and chloroplasts have double outer membranes and can self-replicate
Name an organelle found only in animal cells.
centriole
What is the purpose of the finger like structures (involutions) on the cell membrane inside the small intestines?
increased surface area for increased absorption
Which type of transport helps the cell to get rid of large particles with the help of a vesicle?
exocytosis
Penicillin is toxic to new bacteria cells because it prevents cell wall formation, causing the cells to burst. This indicates that the bacteria live in a ________________ solution.
hypotonic