What is the name of the whiplike structure that allows some prokaryotes to move?
What is a flagella?
100
In water which atom is positive- the hydrogen or oxygen?
What is the hydrogen?
100
Which of the following is a quantitative observation?
a. Jane has black hair.
b. Jane is 5 feet 6 inches tall.
c. Jane shirt is pretty.
d. Jane dyes her hair.
What is (b) Jane is 5 feet 6 inches tall.
200
This type of passive transport describes a substance moving from a high concentration to a low concentration.
What is diffusion?
200
Which cell organelle synthesizes proteins?
What is the ribosome?
200
What is one major difference between prokaryotes and eukaryotes?
What is
- no nucleus
- no membrane bound organelles
- bacteria
200
What type of bonds hold water molecules to each other?
What is hydrogen bonds?
200
Jill conducts an experiment. She is testing how tall plants grow in different amounts of sunlight. What is her independent variable?
What is amount of sunlight?
300
This word means "diffusion of water."
What is osmosis?
300
Which cell organelle stores water and nutrients?
What is the vacuole?
300
Which type of bacteria is found in extreme conditions- archaebacteria or eubacteria?
What is archaebacteria?
300
What two forces allow water to climb from the roots of trees to the leaves?
What is cohesion and adhesion?
300
Jack is testing how number of hours of sleep can affect student grades. What is he dependent variable?
What is the student grades?
400
The inside of a cell is less than 1% salt. The cell is placed in a 10% salt water solution. Is the solution hypertonic, hypotonic, or isotonic?
What is hypertonic?
400
Which cell organelle packages proteins for transport out of the cell?
What is the golgi bodies?
400
Streptococcus bacteria causes strep throat- what is the shape of this bacteria?
Sphere, rod, or spiral?
What is sphere?
400
What is the term for "cohesion at the top of water?" (This property also allows bugs and some lizards to walk on water!)
What is surface tension?
400
Julian hypothesizes that if students listen to classical music during their test, they will perform better. In this experiment, music is the _____________ variable.
What is independent?
500
The inside of a cell is less than 1% salt. The cell is placed in a 10% salt water solution. Will the water enter the cell, exit the cell, or remain the same?
What is exit the cell?
500
Which cell organelle transports proteins and lipids within the cell?
What is the Endoplasmic Reticulum?
500
This cell part provides rigidity and structure to bacteria cells.
What is the cell wall?
500
Are polar things hydrophilic or hydrophobic?
What is hydrophilic?
500
Mary is doing an experiment testing how tall plants grow with different fertilizers. Name one thing she should keep constant in her experiment.
What is
ex. amount of water, sunlight, type of plant, type of soil, etc.