Intro to Cells
Who was the first person to view cells?
Robert Hooke
What is the powerhouse of the cell (creates ATP energy)?
mitochondria
Describe the plasma membrane.
Semi-permeable, only allows certain things through
Which type of transport requires energy?
Active transport
When did Ms. Macaulay graduate high school?
2017
What makes prokaryotic cells unique?
No nucleus, single celled, smaller
Which organelle is vital in producing proteins?
Ribosomes
What is the difference between integral and peripheral proteins?
Integral are embedded in the cell membrane and cannot be removed, peripheral are on the top or bottom of the membrane and can be removed.
A plant cell absorbs water and swells up when it is placed in freshwater. The fresh water would be considered ________ to the cell.
What is the highest grossing movie so far in 2023?
Barbie
What makes eukaryotic cells unique?
Nucleus, multicellular, larger and more complex
Which organelle takes protein products and packages or modifies them?
golgi apparatus
What is a phospholipid composed of?
1 phosphate head and 2 fatty acid tails
What are the three types of active transport?
Endocytosis, exocytosis, protein pumps
Skin
What are the 4 characteristics that all cells have in common?
1. ribosomes
2. cell membrane
3. cytoplasm
4. DNA
Which organelle helps synthesize lipids?
Smooth ER
Substances that can move freely through the cell membrane are usually…
(size and polarity)
small and nonpolar
Name each type of osmotic solution and describe what happens in each.
Hypotonic - cell swells
Hypertonic - cell shrivels
Isotonic - cell stays the same
What is the date of the Biology EOC?
December 12
Why do cells need a large surface area to volume ratio?
Have to be large enough to house DNA but small enough to allow for exchange across the cell
Describe the difference between plant and animal cells. List at least 3 unique characteristics for each cell type.
Plant: cell wall, large central vacuole, square shape, chloroplast
Animal: centrioles, small vacuoles, circular shape
Which part of the cell membrane maintains fluidity?
cholesterol
Which of the following processes would require energy?
Ions moving against their concentration gradient
Water moving across a membrane
Glucose moving into a cell through facilitated diffusion
Anything using passive transport
ions moving against their concentration gradient
What color is a giraffes tongue?
purple