BIO105 Exam 1 Practice

Which is not one of the four main categories of bio-molecules?

What is the basic unit of structure and function of living things

Atom

Cell

Organelle

Tissue

If the most common form of Carbon has 6 protons, 6 neutrons, and 6 electrons, which element would be an isotope of Carbon?

An atom with 6 protons, 8 neutrons, and 6 electrons

An atom with 7 protons, 6 neutrons, and 6 electrons

An atom with 6 protons, 6 neutrons, and 9 electrons

The alpha helix and Beta helix represent which level of protein structure

Primary Structure

Secondary Structure

Tertiary Structure

Quarternary Structure

A hydrophilic molecule will

Repel Water molecules

Attract Water molecules

A monosaccharide is to a carbohydrate as

A nucleotide is to a protein

An amino acid is to a carbohydrate

A glucose is to a nucleic acid

An amino acid is to protein

What polysaccharide do plants use to store energy?

Starch

Chitin

Glucose

What type of reaction is water used to break covalent bonds between molecules?

Dehydration synthesis

Hydrolysis

Nuclear Fission

According to the octet rule, an atom is stable with how many electrons in the outer shell?

Multiple water molecules are held together by what type of bond?

Covalent

Ionic

Hydrogen

Which term doesn't relate to the others

Nucleic Acid

Nucleotide

Amino Acid

DNA

What is not a function of proteins?

Metabolism

Support

Long term storage

Transport

A ___ bond shares electrons between two elements

Ionic

Covalent

Hydrogen

What is the main function of the smooth endoplasmic reticulum?

Lipid synthesis

Protein synthesis

Transport

Ribosome synthesis

Where is most of a Eukaryotic cell's DNA contained?

Rough ER

Mitochondria

Nucleus

Golgi Apparatus

A prokaryotic cell has all of the following except

Ribosomes

Cell Wall

Mitochondria

DNA

What functional group is N-H-H

Hydroxyl

Carbonyl

Menthil

Amino

The organelle responsible for protein modification and final packaging is

Golgi apparatus

Rough ER

Mitochondria

Cell Wall

What so eukaryotes have that prokaryotes don't?

Cell Membrane

Cytoplasm

Membrane Bound Organelles

What is the primary component in a cellular membrane?

Ribosomes

Phospholipids

Transport proteins

DNA consists of the following except

Uracil

Guanine

Adenine

Cytosine

What is the complimentary strand of DNA to GCGTATTG

CGATAGGT

TATCTAAG

CGCATAAC

CGTUTAAC

What is the link between amino acids called?

Ester bond

Phosphodiester bond

Peptide bond

Hydrogen

What is the smallest unit of an element?

Molecule

Atom

Macromolecule

Circular DNA is found in

Plants

Animals

Bacteria

Humans

What is it called when a protein breaks down and loses its function?

Phosphorylation

Dephosphorylation

Desaturation

Denature

What is the structure of DNA?

Helix

Double Helix

Triple Helix

If a fat is said to be saturated, what is true of it?

It has double bonds

It has no double bonds

Animals have all of the following except

Mitochondria

Vacuole

Ribosomes

Cell membrane

All men are mortal. Joe is a man. Therefor Joe is mortal.

Inductive reasoning

Deductive reasoning

Neither

Both A and B

My math teacher has blue eyes. My last math teacher had blue eyes. All math teachers must have blue eyes.

Inductive reasoning

Deductive reasoning

Neither

Both A and B

Neutral atoms have the same number of electrons and protons

True

False

Which of these is not a lipid?

Phospholipid

Cholesterol

Estrogen

RNA

What determines the types of chemical reactions that an atom participates in?

The number of protons in the nucleus

The number of electrons in the nucleus

The number of electrons in the innermost shell

The number of electrons in the outermost shell

What is the sequence of biological organization from simplest to most complex?

Cell, organ, tissue, organism

Cell tissue, organ, organism

Tissue, cell, organ, organism

Organism, organ, tissue, cell

Which is not one of the characteristics of life?

Adaptation

Organization

Mutations

Maintain Homeostasis

Which is not one of the four kingdoms of Eukarya?

Protists

Plants

Archaea

Animals

What substance cannot be broken into substances with different properties (on periodic table)

Proton

Atom

Element

Molecule

What is a monomer of a carbohydrate?

Glucose

Fructose

Monosaccharide

Amino Acid

What organelle is responsible for protein modification?

Rough ER

Smooth ER

Golgi Apparatus

Nucleolus

Biology is the study of

Living things

Nonliving things

Both A and B

Which of these are NOT a component of a nucleotide

5-Carbon sugar

Nitrogenous base

Phosphate group

Carbonal group

What makes some covalent bonds polar?

Difference in stereoisomers

Differences in electronegativity

Differences in neutrons

Where is the site of protein synthesis

Rough ER

Smooth ER

Ribosomes

Lysosomes

What is the main function of the rough endoplasmic reticulum?

Protein synthesis/modification

Transport materials

Break down macromolecules

Storage

Prokaryotic cells differ from eukaryotic cells because prokaryotic cells contain a

Nucleus

Nucleotide

Nucleoid

Nuclear envelope

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