Bio Lecture: Test 1
Bio Lecture: Test Your Knowledge
Welcome to the "Bio Lecture: Test 1" quiz! This quiz is designed to assess your understanding of fundamental biological concepts, from cellular structures to organic chemistry. Whether you're a student preparing for exams or just looking to refresh your knowledge, this quiz provides a comprehensive review of key topics in biology.
Key Features:
- 40 multiple-choice questions
- Immediate scoring and feedback
- Engaging format to enhance learning
Which of the following terms is used to describe a tentative answer to a research question?
Principle
Hypothesis
Law
Theory
Which of the following is performed by scientists when testing a proposed hypothesis?
Omit observations that conflict with previously known information
Perform testable experiments or observations
Develop Theories
Try to prove known facts
What was the final conclusion in the snake mimicry experiment?
Bears do not distinguish between king snakes and coral snakes
The test was inconclusive
Bears instinctively avoid king snakaes
Bears avoid king snakes when they live in the same location as coral snakes
The nuclear region of an atom contains...
Protons and neutrons
Protons and electrons
Electrons
Protons only
The subatomic particle that has a negative charge is the ________.
Electron
Proton
Neutron
Isotope
An atom that has an electronic charge (either positive or negative) is called a(n)...
Element
Compound
Molecule
Ion
The type of chemical bond found in table salt is a __________ bond.
Polar
Covalent
Hydrogen
Ionic
What type of chemical bond attaches hydrogen to oxygen during the formation of water?
Hydrogen
Ionic
Covalent
Polar
Which of the following substances is hydrophobic (non-polar)?
Proteins
Water
Sugar
Olive Oil
Which of the following occurs when water molecules form ice?
Air is trapped between the water molecules
Covalent bonds weaken
The "frozen" water becomes more dense
Hydrogen bonding breaks
Glucose dissolves when mixed with water because...
It forms a covalent bond water
It ionizes
It is polar and a hydrogen shell surrounds it
Its primary structure changes
The type of bond that connects individual water molecules together is the __________ bond.
Polar
Covalent
Ionic
Hydrogen
A pH value of _____ has the highest concentration of hydrogen ions and is therefore considered an acid.
7
5
9
1
Nearly all of the chemical reactions associated with life of a pH close to ____.
1
7
9
4
Which of the following characteristics of living organisms makes it possible for the other characteristics listed to occur.
Metabolism
Growth and development
Response to environmental stimulation
Adaption to environmental change
Which of the following atoms are found in ALL organic molecules?
Oxygen and hydrogen
Nitrogen and phosphorus
Carbon and hydrogen
Sodium and sulfur
Large polymers are formed from smaller molecules by the process of...
Dehydration reactions
Hydrolysis
Oxidation
Reduction
The breakdown of large molecules by the addition of water is called...
Dehydration
Reduction
Oxidation
Hydrolysis
Glycogen is a polysaccharide used for energy storage in....
Algae
Plants
Animals
Fungus
A triglyceride is so named because it contains....
Three glycerol groups
A triple covalent bond
3 oxygen atoms
3 fatty acids
In a cell membrane, the heads of the phospholipid molecules point outward because they are ________.
Hydrophilic
Hydrophobic
Contain large amounts of oxygen
Saturated with water
The type of monomer associated with proteins are....
Fatty acids
Amino acids
Sugars
Nucleotides
Nucleotides are the monomer of....
Amino acids
DNA
Carbohydrates
Reproductive hormones
Which of the following structures is absent in the cells of bacteria?
Ribosomes
Cell wall
Nucleus
DNA
Which of the following statements is a correct statement about the plasma membrane?
It manufactures cholesterol.
It helps cells fuse to form tissues.
It regulates the movement of materials into and out of cells
It makes cells oil soluble.
Ribosomes are often....
Responsible for synthesizing sugars
Found in bacteria only
Attached to the rough ER
Form an integral part of the plasma membrane
The sum of all the chemical reactions that occur in a living organisms is called....
Hemostasis
Homeostasis
Metabolism
Cellular respiration
The process of regulating the chemical reactions necessary for life are collectively referred to as...
Metabolism
Hemostasis
Cellular respiration
Homeostasis
Which of the following organisms are classified as multicellular heterotrophs that absorb their food internally?
Plants
Fungi
Bacteria
Animals
Which of the following statement is a false statement about eukaryotes?
They are all heterotrophs
They all have cell walls
Their DNA contained inside a nucleus
They are all multicellular
In the scientific name Ursus americanus the word Ursus refers to the....
Kingdom
Species name
Genus
Domain
The genetic material of all living organisms is made of...
RNA
DNA
Phospholipids
Amino acids
Which of the following is associated only with plant cells?
Chloroplast
Ribosomes
Endoplasmic reticulum
Mitochondria
This organelle contains enzymes for intracellular digestion.
Lysome
Endoplasmic reticulum
Peroxisome
Golgi complex
This organelle is the site of cellular respiration.
Chloroplast
Endoplasmic reticulum
Golgi complex
Mitochondria
This organelle is unique to plants.
Mitochondria
Endoplasmic reticulum
Golgi complex
Chloroplasts
This organelle is responsible for assembling organic molecules.
Mitochondria
Chloroplasts
Endoplasmic reticulum
Golgi complex
This structure is essential for the manufacture of proteins.
Mitochondria
Peroxisome
Chloroplast
Ribosomes
Which of the following is NOT a part of the cell membrane?
Proteins
Phospholipids
Cholesterol
Ribosomes
All living organisms belong to one of three domains. Which of the following is NOT one of these domains?
Prokarya
Archea
Eukarya
Bacteria
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