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WorksheetsMidterm Review Quizizz Part 1
Total questions: 15
Worksheet time: 8mins
The ability of organisms to maintain a constant internal balance is called _____.
Genetics
Homeostasis
Response to Stimuli
Evolution
To maintain homeostasis, the human body has evolved feedback loops. A feedback loop is the cycle between the input (change), your body, and the output (your body’s reaction). The maintenance of body temperature, pH, blood sugar, and hydration are controlled by ________ feedback loops, where your body reverses a change in its environment to keep internal levels at a set point.
Positive
Negative
Neither A or B
Proteins are made on the
nucleolus
Golgi body
chromosomes
ribosomes
VERY VERY VERY small cells
Eukaryotic Cells
Prokaryotic Cells
BOTH Eukaryotic and Prokaryotic Cells
Which cell type contains centrioles for cell division?
Animal Cells
Plant Cells
BOTH Animal and Plant Cells
What is the main function(s) of the cell membrane?
to regulate what enters and exits the cell
to provide protection and support for the cell
to send and receive signals from other cells or the environment
all of the above
The structure of the cell membrane is best described as
a waterproof layer of polysaccharides connected by short chains of amino acids.
a web of protein fibers.
a double layer of phospholipids, which contain hydrophilic heads and hydrophobic tails
a thick layer of proteins and carbohydrates.
Proteins built into the cell membrane which assist with the movement of materials are called:
receptors
transport
markers
Proteins embedded in the cell membrane that bind to signal molecules are known as
marker proteins
receptor proteins
signal proteins
transport proteins
Which type of membrane protein contains carbohydrates that distinguish the cell type?
signal proteins
marker proteins
carrier proteins
receptor proteins
Diffusion is the movement of a substance:
through a lipid bilayer
only in water
from an area of low concentration to an area of high concentration
from an area of high concentration to an area of low concentration
The diffusion of water through a semipermeable membrane is called:
osmosis
active transport
facilitated diffusion
simple diffusion
Observe the image below. Assume the particles can cross the semipermeable membrane, and assume that diffusion would occur. What direction will the particles move?
Right to Left
Left to right
What do you think homeostasis is?
Keeping your body systems stable
Staying at home
Making body systems unstable
A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which has occurred?
The swollen gums have absorbed the saltwater solution
The saltwater solution lowers the temperature in the gums
The salt in the solution has moved against the concentration gradient
The water in the gums has moved from a high to a low concentration of water
