biology scientific method cells homeostasis chemistry a cells b chemistry b

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