Biology 1st Semester Exam Guide

Which is a substance that produces OH ions when it is dissolved in water

A base

What does the image above show

A chemical reaction

What type of substance is water

A compound

What does the image above show (Bolts and screws in a box)

A heterogeneous mixture

What is a chemical reaction

A match burning

Which molecular activity requires a folded structure like the one shown

A protein

Which type of macromolecule can have a structure like the one shown

A protein

Which do the following is the substance that lowers the activation energy

A reactant

What is a hypothesis

A testable explanation

What type of discovery as a serendipitous discovery

Accidental

Look at the following figure below determine what upward curve represents

Activation energy

What are monomers the make up proteins

Amino acids

Which defines habitat

An area where an organism lives

Which of these is a pure substance that cannot be broken down by a chemical reaction?

An element

What causes the overall charge of an atom to be zero

An equal number of protons and electrons

When you form a logical conclusion based on your observation and what you already know, what are you making

An inference

Which biotics science was Jane Goodall studying when she observed chimpanzees

Animal behavior

Where are the largest concentration of nitrogen and found

Atmosphere

What type of organism is the foundation of all ecosystems

Autotrough

What is the name for a group of interacting populations that occupy the same area at the same time

Biological community

What is the name for a substance that keeps the pH in sales business within the 6.5 to 7.5 pH range

Buffer

Qwhich element do almost all biological molecules contain

Carbon

Which two element are always found in amino acids

Carbon and oxygen

Which type of heteroph best describes the snake

Carnivore

What provides energy for all living processes

Chemical bonds

What occurs at the active site in the enzyme substrate complex

Chemical bonds are broken and new bonds are formed

Which of the following are bonds broken and new bonds are formed?

Chemical reactions

Supposed to leave eating species of animals live in a habitat where there is a severe drought and many plants died as a result. Which term describes the kind of relationship the two species will probably have?

Competition

Which is a detrivore

Crayfish

What type of organism returns nutrients to an ecosystem

Decomposer

Which property of population might be described as random clumped or uniform

Density

What is the process of change that takes place during the life of an organism

Development

Which of these levels of organization includes all of their other layers

Ecosystem

Look at the energy levels in the Adam what is the maximum number of electrons energy level can two hold

Eight

Which of the following particles is negatively charged

Electron

Which process changes a chlorine atom into a chloride ion?

Electron gain

Which statement is true about energy in the ecosystem

Energy for most ecosystems originate from the sun

Identify the proteins that speed up the rate of chemical reactions

Enzymes

What process regulates an organism's internal conditions and keep them stable

Equilibrium

Which term describes the part of the cycle labeled a (Water going to the sky)

Evaporation

Which best describes a scientific theory

Explanation supported by many experiments overtime

What is a theory

Explanation supported by observations and experiments

If any colleges finds that a long tailed weasel had disappeared from the desert community, she found concluded that there will be a decrease in the population of coyotes. True or false?

False

In order scientific experiments to be valid they must be based on scientific methods that use control experiments. True or false?

False

Scientists discard observations and data that are not consistent with current scientific understanding. true or false?

False

In which activity would be an environmental biologist most likely be involved

Finding ways to protect species

Scientist use laboratory rats to test the effect of the new drug razatrin. What do rats in the control group perceive

Food without resent train food containing another drug

How many Camela bonds and can form with other Adams

Four

Which part of the food web above contains the least biomass

Foxes

Identify how energy flows through an ecosystem in a typical food chain

From the auto trough to a heteroph

Which part of the diagram above relates to carbon leaving a long term cycle

Fuel combustion

Which polysaccharide stores energy in the muscle and liver tissue

Glycogen

Which part of the food web of contains the greatest biomass

Green plants

What is true of a chemical reaction

He and or light are released in the reaction

Which type of organism exists at all tropic levels except for the first tropic level

Heterotrophs

Which characteristic of life should be the title of this graph

Homeostasis

What type of bond attracts water molecules to each other into other substances

Hydrogen bonds

What type of scientist studies water fountain on your ground, in the atmosphere, and on the surface of the earth

Hydrologist

What is a text to testable explanation

Hypothesis

How do the isotopes of hydrogen differ

In the number of neutrons

Which describes the effect of population increase and resource depletion

Increased competition

In a controlled experiment which factor can change

Independent variable

Which best describes adaptation

Inherited changes in response to environmental factors

Why is the mouse classed as a omnivore

It consumes post grasshoppers and plants

Which is the indication that an idea is based on pseudoscience

It does not welcome scientific investigation

Why is water able to dissolve a wide variety of salutes

It is a polar molecule

Which statement is not true about water

It is composed of ionic bonds

Which is true about scientific inquiry

It is testable

How does an enzyme increase the rate of a chemical reaction

It lowers the activation energy

What happens when the energy of the fox use for maintaining his body temperature

It moves into the surrounding environment

What are facts, oils, and waxes composed of

Lipids

Which should be considered an ecosystem

Living in nonliving things in a pond

Which is not a characteristic of all organisms

Maintains homeostasis

The insects in the photo above is gathering pollen and nectar for food but the same time is aiding in the plant reproduction what is this relationship demonstrate?

Mutualism

Aza topes are created by a change in the number of what particle of an Atom

Neutrons

What term best describes the bees role of gathering pollen

Niche

What is the name of the process in which bacteria in lightning convert nitrogen into compounds that are useful for plants?

Nitrogen fixation

Which process returns nitrogen to the food web

Nitrogen fixation

The mole is the SI unit for which quantity

Number of particles in the substance

What is a chemical substance that an organism must obtain from his environment to survive

Nutrient

Which only on when it release and water causes a solution to be basic

OH -

In what type of activity would you miss expect an ecologist just to be involved

Observing the relationships that woodpeckers have with other species and live in living environment

Which process looks like phosphorus in a long term cycle

Organic materials buried at the bottom of oceans

Santos ones to report the findings from our investigations. Before her information can be published but must go through

Peer review

Which joins amino acids together

Peptide bonds

Which process in the cycle converts carbon dioxide and water into carbohydrates

Photosynthesis

What are the two major life processes that involve carbon and oxygen

Photosynthesis and respiration

Which part of the diagram above relates to Carly moving from abiotic to a biotic factor in that part of the ecosystem

Photosynthesis and respiration

Which are biotic factors in a forest environment

Plants in microscopic living organisms

The act of one organism consuming other organisms for food is

Predation

Which biological molecule transport substances between cells

Preteen

Which statement is true about chemical reactions

Products are on the right

What type of biological molecule is an enzyme

Protein

What particles in An atoms nucleus

Protons and neutrons

Which describes the statement the frog is 4 cm long

Quantitive data

Some species of plants begin opening their flowers in the morning when they have exposed to sunlight what care is just the characteristics of living things does represent

Responding to stimuli

Which is an example of biodiversity with direct economic value

Species of a water plant that makes it useful antibiotic

What is the function of the biological macromolecules

Stores and transmits genetic information

What area of Santas Saints take scientific knowledge and Apple to meet human needs

Technology

Which is a characteristic of X potential growth

The growth rate that increases over time

If a population of parrots had greater generic diversity that a hummingbird population in the same region, which outcome could result?

The parrot population could have a greater resistance to disease than the humming bird population

Identify the term used to describe explanation of a natural phenomena and supported by observation experimentation

Theory

Which is a scientific explanation of mutual phenomenon supported by many observations and experiments

Theory

Which is a characteristic of all lipids

They do not dissolve in water

How to do detritivores obtain their energy in an ecosystem

They feed on fragments of dead plants and animals

With two issues such as aids Glenn warming genetic engineering including having common

They involve ethics

How does energy first into the pond ecosystem

Through light from the sun

What do cellulose and chitin have in common

Thy are structural polysaccharides

Which fruit contains a higher concentration of hydrogen ions

Tomatoes

Which substance is not a part of a nucleotide

Water

Which biochemical cycle involves evaporation transpiration and precipitation off

Water cycle

Which is the result of van der Waals force

Water molecules forming droplets

Which should be abiotic factor for a tree in the forest

Wind blowing to the branches