PENN FOSTER INTRODUCTION TO

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PENN FOSTER INTRODUCTION TO

BIOLOGY PROCTORED ACTUAL EXAM

WITH 300 QUESTIONS AND CORRECT

ANSWERS ALREADY GRADED A+/ PENN

FOSTER INTRO TO BIOLOGY PROCTORED

EXAM LATEST (NEW!!)

What is the MAIN energy molecule in the body? - ANSWER-ATP

Which of the following molecules is a byproduct of cellular respiration? - ANSWER-Water

Which of the following organelles is part of the endomembrane system? - ANSWER-Golgi Apparatus

Sunflowers belong to which Kingdom? - ANSWER-Plantae

An insect is able to walk across the surface of a pond without sinking because of

the: - ANSWER-Surface tension of the water

Which of the following structures surrounds the cytoplasm in a bacterial cell? - ANSWER-Plasma membrane

Which of the following is TRUE of the scientific method? - ANSWER-Accepted explanation for how the world works

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Binomial name given to an organism is composed of: - ANSWER-Genus, Species

Crossing-over involves the exchange of genetic information between: - ANSWER-

Nonsister chromatids

Which of the following is NOT a domain of the 3 domain system? - ANSWER- Prokarya

An atom of which of the following elements contains 6 protons and electrons? - ANSWER-Carbon

___ is the name for all the chemical processes in the cell. - ANSWER-Metabolism

What does a receptor protein do? - ANSWER-Allows a specific molecule to bind to it because of its shape

___ are modifications that make organisms suited to their way of life. - ANSWER- Adaptations

Example of a monosaccharide - ANSWER-Glucose

Nucleic acids are composed of monomers called: - ANSWER-Nucleotides

Which of the following occurs in the cristae of the mitochondria? - ANSWER- Electron transport chain

What does electronegativity mean? - ANSWER-Affinity for electrons in a covalent bond 2 / 4

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If you immerse a living cell in a hypertonic solution, water will: - ANSWER-Move out of the cell

Which of the following occurs during the light reactions of photosynthesis? - ANSWER-NADPH production

___ chromosomes are found in pairs, one from father and mother - ANSWER- Homologus

Bacteria reproduce by: - ANSWER-Binary Fission

Autosomes are ___ chromosomes - ANSWER-Nonsex

What holds the base pairs of DNA together? - ANSWER-Hydrogen bonding

Which of the following is an x-linked recessive disorder? - ANSWER-Color- blindness

How does mitosis in plant cells differ from that in animal cells? - ANSWER- Animals lack a cell plate and plant cells lack centrioles

___ have the potential to develop and specialize into any cell type, which means

they're: - ANSWER-Totipotent, Embryotic stem cells

A woman who isn't color blind but has an allele for color blindness reproduces with a man who has normal vision. What is the chance they'll have a colorblind daughter? - ANSWER-0% 3 / 4

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Which of the following shows the correct order in which genes are expressed? - ANSWER-DNA -> RNA -> Proteins

Stating that an organism is heterozygous is stating its: - ANSWER-Genotype

The phase of cell division in which chromosomes align on the spindle equator

halfway between the spindle poles is: - ANSWER-Metaphase

If a piece of DNA breaks off from a chromosome and attaches itself to a nonhomologus chromosome at another location, what type of change has occurred?

• ANSWER-Translocation

What is a characteristic of cancer cells? - ANSWER-They result in uncontrolled growth

One parent has curly hair, one parent has straight hair, their child has wavy hair.

This is an example of: - ANSWER-Incomplete Dominance

___ are the proteins that DNA is wound around to form chromosomes. - ANSWER-Histones

• organisms, each with the genotype TtGg, mate the chance of producing an

offspring that has the dominant phenotype for height (T) and the recessive

phenotype color (g) is: - ANSWER-3/16

Which of these is happening when translation takes place? - ANSWER-tRNA are bringing amino acids to the ribosomes

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