Biology Chemistry Overview
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Questions and Answers

What is the structure of proteins that contains the sequence of amino acids called?

  • Primary structure (correct)
  • Secondary structure
  • Tertiary structure
  • Quaternary structure

Which type of cells are primarily responsible for crawling through tissue to reach infection sites?

  • White blood cells (correct)
  • Erythrocytes
  • Platelets
  • Neurons

What type of fatty acid chains contain only single covalent bonds between carbon atoms?

  • Unsaturated fatty acids
  • Trans fatty acids
  • Saturated fatty acids (correct)
  • Polyunsaturated fatty acids

Which of the following is the largest cell in the human body?

<p>Oocyte (egg cell) (C)</p> Signup and view all the answers

What are the three main components of nucleotides?

<p>Base, sugar, phosphate (C)</p> Signup and view all the answers

Which of these glands is NOT one of the major types developed from the epithelial sheet?

<p>Skeletal glands (A)</p> Signup and view all the answers

What is a common function of the integumentary system?

<p>Regulating body temperature (A)</p> Signup and view all the answers

Which epidermal layer occurs only in hairless and extra thick skin, such as on the palms of the hands?

<p>Stratum lucidum (D)</p> Signup and view all the answers

What type of energy storage is characterized by inactivity?

<p>Potential energy (B)</p> Signup and view all the answers

Which type of solution contains solute particles that are fairly large?

<p>Colloid solution (A)</p> Signup and view all the answers

Which of the following describes a substance that enhances the rate of a chemical reaction without being consumed?

<p>Catalyst (C)</p> Signup and view all the answers

Which tissue is primarily responsible for energy storage and conversion into glucose in animal bodies?

<p>Glycogen (C)</p> Signup and view all the answers

What characteristic allows erythrocytes to efficiently uptake oxygen?

<p>Biconcave shape (C)</p> Signup and view all the answers

Which layer of the serous membrane directly lines organs?

<p>Visceral layer (D)</p> Signup and view all the answers

What type of endocytosis involves engulfing large particles?

<p>Phagocytosis (D)</p> Signup and view all the answers

Where do keratinocytes originate within the skin?

<p>Stratum basale (C)</p> Signup and view all the answers

Flashcards

Potential energy

Stored energy, inactive energy.

Radioactive decay

Spontaneous atomic disintegration

Suspensions

Solutions with large solute particles that do not dissolve completely.

Elements composing 96% of the human body

The most abundant elements in the human body: Carbon, Hydrogen, Oxygen, Nitrogen.

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Primary structure of a protein

The sequence of amino acids in a protein chain.

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Functional proteins

Proteins that perform specific tasks in cells, important for activity.

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Catalyst

Increases reaction rate without being consumed or changed.

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Nucleotide parts

Phosphate group, a sugar (ribose or deoxyribose), nitrogenous base.

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Saturated fatty acids

Fatty acids with single bonds between carbon atoms.

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Glycogen

Stored glucose in animals (primarily in liver and muscles).

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Ribosome assembly location

Nucleolus within the nucleus.

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Tight junctions

Cell junctions that fuse adjacent plasma membranes; prevent substance movement.

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Erythrocyte oxygen uptake

Erythrocyte feature enabling oxygen absorption, Hemoglobin

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Leukocyte movement

Leukocyte feature enabling movement through tissues during infection.

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Largest human cell

Ovum. (Female egg cell)

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Diffusion

Movement of molecules from high to low concentration.

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Types of endocytosis

Phagocytosis and pinocytosis

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Epithelial tissue for absorption

Epithelium specializing in absorption, like alveolar cells in lungs.

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Types of glands

Exocrine and endocrine

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Cartilage cell type

Chondrocyte

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Bone cell type

Osteocyte

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Striated muscle tissue types

Skeletal muscle and cardiac muscle

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Membrane lining body cavities opening to exterior

Mucous membrane.

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Serous membrane layers

Parietal and visceral layers.

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Integumentary system functions

Protection, regulates body temperature, sensation, excretion and vitamin D production.

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Stratum Lucidum

Thin, clear layer of epidermis located in thick skin only (palms and soles).

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Origin of keratinocytes

Stratum Basale (deepest layer of epidermis).

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Dermis function related to epidermis

Papillary layer containing capillaries supplying nutrients to the epidermis.

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Skin pressure effect

Pressure from the body's weight leads to skin changes, especially over bony areas.

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Inactive energy type

Stored energy

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Atomic decay process

Spontaneous disintegration of atoms.

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Solution type with large solute

A heterogeneous mixture where solute particles are not completely dissolved.

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Elements comprising 96% of body

Carbon, hydrogen, oxygen, nitrogen.

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Amino acid sequence in a protein

Primary structure of a protein.

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Functional protein type

Proteins that perform a specific function in the cell.

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Reaction rate increaser (unchanged)

A catalyst increases the speed of a reaction without participating in it

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Nucleotide component parts

Phosphate group, sugar, nitrogenous base

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Fatty acids with single bonds

Saturated fatty acids.

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Animal stored glucose

Glycogen.

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Ribosome assembly location

Nucleolus.

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Tight junctions action

Prevent substances from passing between cells.

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Erythrocyte oxygen uptake feature

Hemoglobin.

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White blood cell movement through tissues

Amoeboid movement.

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Largest human cell

Ovum.

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Molecule movement from high to low

Diffusion.

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Endocytosis types

Phagocytosis and pinocytosis.

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Absorption-specialized epithelial tissue

Epithelium for absorption, e.g., alveoli in lungs

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Two major gland types

Exocrine and endocrine glands.

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Cartilage cell type

Chondrocyte

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Bone cell type

Osteocyte

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Striated muscle tissue types

Skeletal and cardiac muscle

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Membrane lining body cavity openings

Mucous membrane

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Serous membrane layers

Parietal and visceral layers

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Integumentary system functions

Protection, temperature regulation, sensation, excretion, vitamin D production

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Epidermal layer in thick skin

Stratum lucidum

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Keratinocyte origin

Stratum basale

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Dermis layer function related to epidermis

Supplies nutrients to epidermis.

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Skin pressure effect

Weight-related skin pressure changes

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Study Notes

Energy Storage/Inactive State

  • Energy is inactive or stored.

Atomic Decay

  • Spontaneous atomic decay is a process.

Solutions

  • A solution is one in which the solute particles are relatively large.

Human Body Elements

  • Four elements make up about 96% of the human body's weight: carbon, oxygen, hydrogen, and nitrogen.

Protein Structure

  • Proteins' amino acid sequence is a key structural aspect.

Functional Proteins

  • Functional proteins are another name for proteins containing the amino acid sequence.

Catalysts

  • Catalysts speed up chemical reactions without changing themselves.

Nucleotides

  • Nucleotides have three parts.

Fatty Acids

  • Fatty acids with only single bonds between carbon atoms are a type of saturated fat.

Polysaccharides

  • Polysaccharides (glycogen), found in muscle and liver tissue, convert to glucose molecules when needed.

Ribosome Assembly

  • Ribosomes are assembled in a specific area of the cell.

Cell Junctions

  • Tight junctions fuse adjacent plasma membranes, preventing substances from passing through the extracellular space.

Erythrocyte Function

  • Erythrocytes' biconcave disc shape aids oxygen uptake.

White Blood Cell Function

  • White blood cells utilize pseudopods (false feet) to reach infection sites.

Largest Cell

  • The largest cell in the body is an oocyte.

Molecular Movement

  • Molecules move from areas of high concentration to areas of low concentration (diffusion).

Endocytosis

  • Phagocytosis and pinocytosis are two types of endocytosis.

Epithelial Tissue

  • Simple squamous epithelium is an epithelial tissue primarily involved in absorption, found in lung air sacs.

Gland Types

  • Endocrine and exocrine glands are two major types of glands derived from epithelial sheets.

Cartilage and Bone

  • Chondrocytes are the major cell type in cartilage, while osteocytes are the major cell type in bone.

Muscle Tissue

  • Skeletal muscle tissue is striated.

Body Cavities

  • Membranes lining body cavities opening to the exterior are a type of mucous membrane.

Serous Membranes

  • Serous membranes have visceral and parietal layers.

Integumentary System

  • The integumentary system functions include protection, thermoregulation, excretion, and vitamin D synthesis.

Stratum Lucidum

  • Stratum lucidum is a layer of the epidermis found in specific areas of the skin.

Keratinocytes

  • Keratinocytes originate in the stratum basale.

Epidermal Ridges

  • Capillary loops within dermal papillae provide nutrients to the epidermis and contribute to friction and gripping capabilities of fingers and feet.

Skin Pressure

  • Skin pressure, impacting blood supply, can temporarily cause reddish skin, especially over bony projections.

Sweat Glands

  • Eccrine glands are numerous sweat glands found across the body.

Bacterial Infections

  • Staphylococcus aureus are bacteria associated with carbuncles.

Burns

  • Third-degree burns extend destructively into the epidermis, dermis, and subcutaneous tissues.

Skin Cancer

  • Melanomas are cancers of melanocytes.

Energy Forms

  • Potential energy and radioactivity are different energy forms.

Mixtures

  • Suspension is a type of mixture.

Molecules in Biological Systems

  • Carbon, oxygen, hydrogen, and nitrogen are essential components of biological molecules.

Protein Shape

  • The primary structure refers to a protein's amino acid sequence.

Biochemical Catalysts

  • Catalysts, such as some proteins, are substances that accelerate chemical reactions.

Nucleic Acid Components

  • Nucleotides, comprising a nitrogenous base, a 5-carbon sugar, and a phosphate group, are critical to nucleic acids.

Lipids

  • Saturated fats are lipids.

Carbohydrates

  • Glycogen is a carbohydrate.

Cellular Structures

  • Nucleoli, tight junctions, biconcave discs, pseudopods (false feet), and oocytes are various structures within cells.

Cellular Processes

  • Diffusion, phagocytosis, and pinocytosis are cellular processes.

Epithelial Tissues

  • Simple squamous epithelium is a simple form of epithelium.

Glands

  • Endocrine and exocrine glands are significant gland types.

Skeletal Components

  • Chondrocytes and osteocytes are skeletal components.

Muscle Tissue Types

  • Skeletal muscle tissue is a type of muscle tissue.

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Description

This quiz covers fundamental concepts in biology and chemistry, including energy storage, atomic decay, and the structure of proteins and nucleotides. It also explores human body elements, catalysts, fatty acids, and polysaccharides. Test your knowledge on these essential topics that form the basis of biological sciences.

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