biology scientific method cells homeostasis chemistry a cells b chemistry b
TRANSCRIPT
BIOLOGY
SCIENTIFIC METHOD
CELLS HOMEOSTASIS Chemistry
ACells B CHEMISTRYB
100 points
The last step of the scientific method
draw conclusions
200 points
The type of graph used to compare 2 groups
Bar graph
300 points
weight
An experiment was performed to determine how junk food affected the weight of mice. What is the dependent variable
400 points
4
Using the following numbers, what is the mode
2, 3, 4, 4, 4, 6, 8 10
500 pointsWhich statement best describes a controlled experiment?• Tests the effect of a single
independent variable• Shows the effect of a dependent
variable on an independent variable
Shows the effect of a dependent variable on an
independent variable
100 pointsWhat organelle is labeled X
endoplasmic reticulum
200 points
Which plant organelle is involved in making sugar from carbon dioxide and
water (photosynthesis).
Chloroplast
300 pointsIn what way does the rough ER
and golgi apparatus work together in a cell. Does it package proteins
into vesicles or break down damaged macromolecules?
packages protein molecules into vesicles
400 points
All cells store energy in molecules of what?
ATP
500 points
What is the correct order of cellular organization? Use the
following words
Cells, organism, organ, tissues, organ systems cells, tissues, organs, organ
systems, organism
100 points
Carbon dioxide and oxygen move freely across the cell membrane. What
determines in which direction they will move?
concentration gradient
200 points
Which form of cell transport involves energy?
Active or Passive
Active
300 points
In what type of solution does water move out of the cell, causing the cell to shrink?
Hypertonic
400 pointsThe following illustration shows which process in
the body. A feedback system or an enzyme pathway?
feedback mechanism
500 points
Nerve cells are essential to homeostasis because they allow what?
Cell communication
100 points
What is one effect of the low density of frozen water in a lake?
Ice floats, protects organisms
200 points
Which property of water allows it to form drops?
Cohesion
300 points
In what type of bond are electrons shared?
Covalent
400 points
What are the three components of atoms?
Protons, neutrons, electrons
500 points
The speed of chemical reactions is increased by what
ATP or enzymes
enzymes
100 points
Which characteristic is shared by ALL Prokaryotes and Eukaryotes?
Ability to store hereditary informationOf
Use organelles to control cell processes
Ability to store hereditary information
200 points
Which two structures are common to both prokaryotes and eukaryotes
Cell wall and nucleus or plasma membrane and cytoplasm
plasma membrane and cytoplasm
300 points
Photosynthesis occurs in the chloroplast of plants, what is the chemical equation
for that reaction
Water + Co2 → Sugar + O2
400 points Enzymes are important for many cellular processes,
If an enzyme encounters extreme pH or temperature how are those processes affected?
Changes shape and cannot function
500 points
Cells require the nutrients found in food that our body breaks down. If a molecule of protein is broken down what would we have?
Amino Acids
100 pointsWhich pair represents the correct
building block with its product?
Starch: glucose
Amino acids: proteins
Dna: Starch
200 points
What protein is necessary to speed up chemical reactions needed to live?
enzymes
300 points
The function of nucleic acids is to ?
dna/rna
Store hereditary information
400 points
What is this biomolecule?
carbohydrate
500 points
dehydration synthesis
This reaction shows a polymerBeing formed from a monomerWhat is this type of reaction called