Biology 1 st Semester Exam

Biology 1st Semester Exam

Review Challange

large group of ecosystems that share the same climate and similar communities

Match the definition to the correct vocabulary term.

A. organism B. biome C. homeostasisD. ecosystem E. species

regulation of an organism’s internal conditions to maintain life, maintaining balance



group of organisms that can breed and produce fertile offspring


A. organism B. biome C. homeostasisD. ecosystemE. species

a biological community and all of the abiotic factors that affect it



any living thing



all nonliving factors in an organisms environment

Match the definition to the correct vocabulary term. a. ecology b. abiotic factors c. population d. habitat

e. biotioc factors

area where an organism lives

Match the definition to the correct vocabulary term. a. ecology b. abiotic factors c. population

d. habitate. biotioc factors

study of relationships among organisms and their interactions with their environment

Match the definition to the correct vocabulary term. a. ecology b. abiotic factors c. population d. habitat e. biotioc factors

all living factors in an organisms environment


all organisms of a single species that share the same geographic location


individuals moving into a population


a. tolerance b. immigration c. emigration d. carrying capacity e. biodiversity

maximum number of individuals in a species that an environment can support



variety of life in an area, determined by the number of different species in that area



an organism’s ability to survive when subjected to different abiotic of biotic factors



individuals moving away from a population



provides support and protection to plant cells


a. cell wall b. nucleus c. mitochondriad. plasma membrane e. chloroplast

makes energy for all cells via cellular respiration


a. cell wall b. nucleus c. mitochondria d. plasma membrane e. Chloroplast

controls all activity within the cell, contains DNA



controls movement of substances into and out of the cell


a. cell wall b. nucleus c. mitochondria d. plasma membrane e. chloroplast

change light energy into a useable food source in plant cells



the diffusion of water across a selectively permeable membrane


a. diffusion b. nucleolus c. ribosomes d. osmosis e. Golgi apparatus

is the site of protein synthesis (making of proteins)



modifies and packages proteins so they can be sent out of the cell



responsible for making ribosomes



net movement of particles from areas of high concentration to areas of low concentration



structures in the nucleus of a cell that

contain the cells genetic material or DNA


a. mitosis b. cytokinesis c. chromosomes d. carcinogen e. apoptosis

controlled programmed cell death in which the cell shrinks and shrivels



substances and chemicals that are known to cause cancer



process by which a cell’s cytoplasm divides and the cell splits into two new cells



cell cycle in which the cell’s nucleus and genetic material is actively dividing



phase of mitosis in which the chromosomes

line up along the center of the cell


a. interphase b. prophase c. metaphased. anaphase e. telophase

phase of mitosis in which the chomatids of each chromosome are pulled apart and move toward the opposite poles of the cell



phase of cell division in which DNA is replicated and cell carries out normal functions


a. interphase b. prophase c. metaphase d. anaphase e. telophase

phase of mitosis in which two nuclei form at the poles of the cell the chromosomes relax, the cleavage furrow begins to form, two new cells beginning to separate


a. interphase b. prophase c. metaphase d. anaphase e. telophase

phase of mitosis in which nucleus disappears, the chromosomes condense, and the spindle apparatus forms



Your cat hears you open a can of cat food and comes running to you. What is the stimulus in this case?

a. the cat came runningb. the cat ate the foodc. you throw the empty can awayd. the cat hears the can open

Which of the following is not a characteristic of all living things?

a. all living things are made up of cellsb. all living things grow and developc. all living things use energyd. all living things have legs

What is the name given to the layer of permanently frozen soil in the tundra?

a. polar iceb. taigac. Planktond. permafrost

Which of the following could be a limiting factor to a population of lily pads growing on a pond?

a. nutrient rich waterb. plenty of sunlightc. not enough spaced. none of the above

Which of the following is not a density-dependent factor that might affect a population?

a. fire destroys a forest b. presence of parasites c. spread of disease d. competition for food

A bee’s role in gathering pollen from flowers and carrying it to other flowers is its ______.

a. Habitat b. community c. niche d. species

One community replacing another as a result of changing abiotic and biotic factors is called _____?_____.

a. endpoint b. zone of tolerance c. ecological succession d. benthic zone

Lichens are a symbiotic relationship between algae and fungus. As part of this relationship both organisms benefit. The algae gets a safe place to live, while the fungus gets a source of food from the photosynthetic algae. What type of symbiotic relationship is this?

a. commensalism b. parasitism c. mutualism d. capitalism

A __?__ is a biome where the annual rate of evaporation exceeds the rate of precipitation.

a. temperate forest b. desert c. tropical rainforest d. tundra

How would a population decrease in primary consumers affect the ecosystem?

A. primary producers would suddenly decrease

B. Third-level consumer population would increase

C. Third-level consumer populations would eventually decrease

D. There would be no overall effect

Bogs, marshes, and swamps are areas of land that are saturated with water. All of these areas are known as ___? ___.

A. Tundra B. Wetlands C. photic zone D. estuaries

What is the aphotic zone of the ocean?

A. the area that sunlight is unable to penetrate

B. the area that sunlight is able to penetrate easily

C. the area where the ocean meets land D. the area of silt, sand, and dead

organisms along the ocean floor

Many different factors can have an impact on the population of a species within an environment. Some of these factors have different effects when the population is small compared to when the population is large. What is the term used to describe these types of factors that work to limit a populations size?

A. extinction factors B. density-independent factors C. density-dependent factors D. coincidental factors

The plasma membrane is called a ___?___ membrane because it allows some substances to pass through it while blocking others.

A. completely permeable B. selectively fluid C. selectively permeable D. nonspecific

Which of the following compounds is used to store energy in a cell?

A. Oxygen B. Rubisco C. DNA D. ATP

What happens to a cell if it is placed in a hypertonic solution?

A. water moves into the cell and the cell swells

B. water moves out of the cell and the cell shrivels

C. there is no change in the cell D. none of the above

Which of the following below correctly states the first law of thermodynamics?

A. energy is destroyed during chemical reactions

B. energy is created during chemical reactions

C. energy cannot be created or destroyed but it can be converted from one form to another

D. energy cannot be converted from one form to another

During glycolysis, glucose is broken down into what substances?

A. carbon dioxide and oxygen B. ATP and NADPH C. ATP and pyruvate D. glucose and oxygen

What happens to NADPH and FADH2 during the electron transport step of cellular respiration?

A. it is converted into glucose B. it is converted into ATP C. it is converted into lactic acid D. it is converted to oxygen

Which of the following is not one of the three principles of the cell theory?

A. all living things are made of one or more cells

B. cells are the basic unit of function and organization of all living things

C. all organisms are multicellular D. cells arise from existing cells and pass their

genetic material on to their daughter cells

A hypothesis is a testable explanation to a problem.

True or False

Secondary succession occurs when soil is not present and small organisms begin growing on bare rock.

True or False

Animals that are r-strategists have short life spans and produce many offspring at one time.

True or False

It is important to preserve biodiversity because some undiscovered organisms could possibly provide valuable medicines that could be used to treat human diseases.

True or False

Habitat fragmentation is a threat to biodiversity but overexploitation of a species is not.

True or False

Density-independent factors have a greater effect on large populations than they do on smaller populations.

True or False

Active transport in a cell moves molecules from low concentration to high concentration and requires the use of energy.

True or False

Photosynthesis occurs in the chloroplast.

True or False

Active transport in a cell moves molecules from low concentration to high concentration and requires the use of energy.

True or False

Biology 1 st Semester Exam

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