1. Introduction to Biology

2. Chemistry

3. Water

4. Biomolecules

5. Cell Components

6. The Membrane

7. Energy and Metabolism

8. Respiration

9. Photosynthesis

10. Cell Signaling

11. Cell Division

12. Meiosis

13. Mendelian Genetics

14. DNA Synthesis

15. Gene Expression

16. Regulation of Expression

17. Viruses

18. Biotechnology

19. Genomics

20. Development

21. Evolution by Natural Selection

22. Evolution of Populations

23. Speciation

24. History of Life on Earth

25. Phylogeny

26. Prokaryotes

27. Protists

28. Plants

29. Fungi

30. Overview of Animals

31. Invertebrates

32. Vertebrates

33. Plant Anatomy

34. Vascular Plant Transport

35. Soil

36. Plant Reproduction

37. Plant Sensation and Response

38. Animal Form and Function

39. Digestive System

40. Circulatory System

41. Immune System

42. Osmoregulation and Excretion

43. Endocrine System

44. Animal Reproduction

45. Nervous System

46. Sensory Systems

47. Muscle Systems

48. Ecology

49. Animal Behavior

50. Population Ecology

51. Community Ecology

52. Ecosystems

53. Conservation Biology

[BOOK BIO] CLUTCH

Types of Tissue Part 1: Epithelial Tissue

7.6 - Reproduction: Upright posture and childbirth

Muscle and Epithelial Tissues

No. Though the epithelial cells lining the intestines are secretory, they are columnar in shape rather than cuboidal.

No. The surface of the skin is a stratified squamous epithelium.

No. The respiratory tract is lined by pseudostratified columnar epithelium.

No. Gas exchange needs to occur across the surface of the blood vessels; thus, they are lined by flat squamous cells, not cuboidal cells.

Lining glandular tissue of the thyroid and salivary glands

Remember the relationship between structure and function.

Where in the body would you be most likely to find secretory cells shaped like dice?

Types of Human Body Tissue

No. Stratified squamous epithelium has this function.

Regeneration and regular replacement of cells

No. These functions are typical of stratified squamous epithelia.

No. Simple squamous epithelia are involved in exchange of materials by diffusion.

No. This is not a function of epithelial cells.

Think of where columnar epithelia are found.

A columnar epithelial cell probably has what function?

Epithelial Tissue - What Is Epithelial Tissue - Functions Of Epithelial Tissue - Epithelial Cells

Tissues : Epithelial Tissue || Muscular Tissue

No. Chondrocytes are cells that secrete collagen and chondroitin sulfate, which make up cartilage.

No. Neurons are cells of the nervous system.

No. Fibroblasts secrete the protein fibers that are present in some forms of connective tissue.

Consider that "osteo-" means "bone."

Bone-forming cells are called __________.

No. The presence of osteoblasts would indicate bone.

No. The presence of fibroblasts would indicate loose connective tissue.

No. Blood cells include erythrocytes and leukocytes.

No. Adipose tissues store fat in adipose cells.

Chondrocytes are found in a type of connective tissue.

Microscopic analysis of an unknown tissue sample reveals the presence of chondrocytes, indicating that the sample was probably taken from __________.

Types of Tissue Part 2: Connective Tissue

No. The integumentary system includes the skin, and the excretory system includes the kidneys and bladder.

No. These systems are largely involved in the body's defenses against disease and infectious agents.

No. The endocrine system contributes to coordination of the body's activities. The integumentary system covers the outside of the body, protecting it against infection and injury and performing many other functions.

No. The respiratory system helps to move gases in and out of the body and is not involved with food. However, the circulatory system does help to distribute gases and nutrients throughout the body.

These two systems both include many tubes.

Food processing and the absorption and distribution of nutrients within your body are mainly accomplished by the __________ systems.

Do salamanders and frogs have the same number of toes on their front feet?

Is it true that apes do not have fleshy tails like monkeys?

Are there any living birds with claws on the ends of their wings?

How is blood pressure affected by physical activity?

Physiology relates to function.

Which of the following is a question about physiology?

What Are Trade Offs? | Stephen Stearns

ANIMAL TISSUES _  PART 01

No. Epithelium is made of densely packed cells and is not striated.

No. Skin is not a tissue; it is made up of many tissues.

The term striated refers to a pattern of bands.

"Striated" is a description that would apply to which kind of animal tissue?

Animal Tissues

Animation: Overview of Animal Tissues

Overview of Animal Tissues Tissues are groups of cells with a common structure and function. An animal's body may be composed of over a hundred different kinds of tissues, classified into four major categories: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. This diagram shows closeup examples of each category.

Nervous Tissue Overview

The evolutionary trade-offs of predator and prey explained

Identifying Connective Tissue | Review and Practice

No. Cartilage surrounds the ends of bones and supports the nose and ears.

No. Adipose tissue is a fatty tissue with little matrix. Ligaments have a dense matrix of collagen fibers.

No. Loose connective tissue is made of a loose weave of collagen fibers. Ligaments are made of a dense pack of collagen fibers.

No. However, ligaments do connect bones to other bones.

Ligaments function like strong rope.

Ligaments are a type of __________.

Briefly explain how the structure of each of these tissues is well suited to its function: stratified squamous epithelium in the skin, neurons in the brain, simple squamous epithelium lining the lung, bone in the skull.

Tissues and Organs

Animation: Connective Tissue

No. The lung is part of the respiratory system.

No. The heart is part of the circulatory system.

No. The integumentary system includes the skin and its derivatives. The excretory system includes the kidneys and bladder.

No. The excretory system includes the kidneys and bladder. The intestine is a component of the digestive system.

Consider the functions of each system and the organs that it contains.

Which of the following systems is correctly paired with one of its parts?

Interview with Karen Rosenberg about the evolution of the human pelvis

For each of the following, explain how structure relates to function: absorptive sections of the digestive tract; capillaries; beaks of Galápagos finches; fish gills.

No. None of these are components of neurons.

No. Although neurons do contain axons and dendrites, they do not have sarcomeres, which are units of muscle tissue.

No. Although neurons do have a cell body, they do not have collagen, which is found in connective tissue, or myosin, a contractile protein found in muscle cells.

Neurons are the cells of the nervous system that sense stimuli and transmit signals.

A neuron consists of many components. Name three.

Types Of Animal Tissues | Biology | Letstute

Basic Biology. Lesson 6: Cells Tissues and Organs (GCSE Science)

No. This tissue has a matrix of dense, parallel collagen fibers without calcium.

No. This tissue has a dense matrix of collagen fibers embedded in a rubbery matrix.

No. Adipose tissue has relatively little matrix.

No. This tissue's matrix is a loose weave of protein fibers.

Consider why you need calcium in your diet.

Which of the six major types of connective tissue has a rigid matrix that contains collagen and calcium salts?

In the viral replicative cycle, what reaction do viral proteases catalyze? Select True or False for each statement.
T/F They catalyze polymerization of amino acids into peptides.
T/F They catalyze folding of long peptide chains into functional proteins.
T/F They catalyze cutting of polyprotein chains into functional proteins.
T/F They catalyze breaking of peptide bonds

No. Blood is restricted to the blood vessels.

found only in the interior of compartments such as the heart and stomach

No. Interstitial fluids are found elsewhere.

fluid that is released from the body, such as tears and sweat

No. Interstitial fluid is found within body tissues.

No. Many body fluids are not interstitial fluids.

the fluid that fills the spaces between cells

Consider that the prefix "inter-" means "between."

Interstitial fluid is __________.

Cells, Tissue, and Organs

The body tissue that consists largely of material located outside of cells is
a. epithelial tissue.
b. connective tissue.
c. muscle tissue.
d. nervous tissue.

Muscle Tissue

Animal Physiology and Fitness Trade-Offs

No. These are cells of connective tissues.

No. These are cells of connective tissue.

Many epithelial tissues cover or line surfaces of the body.

Which of the following are types of cell found in epithelial tissues?

Nervous Tissue | Types of Neurons | Biology | Science | Letstute

ANIMAL TISSUES PART 02

Calls vs. balls: An evolutionary trade-off

Ligaments are often found in joints, where the alignment of bones is very important.

Ligaments connect __________ to __________.

No. The intestine is not a specific type of cell. In fact, it is made of many kinds of cell: muscle cells, secretory cells, epithelial cells, and so on.

No. The intestine is not a specific type of tissue. In fact, it contains several kinds of tissue: muscle, connective tissue, and so on.

No. The intestine not a specific type of organ system. In fact, it is one part of an organ system: the digestive system.

No. The intestine is not a specific type of organism.

Consider the relationships between the different levels of biological organization.

Complete the following word association: Albatross is to organism as intestine is to __________.

All cells in a multicellular organism can perform all metabolic functions, thus maximizing metabolism.

No. Whereas a unicellular organism must perform all metabolic functions within its single cell, multicellularity allows for cell specialization, which can lead to tissue, organ, and organ system formation.

Single-celled organisms can grow to larger sizes than multicellular organisms.

No. Unicellular organisms are limited in size because they must maintain an adequate surface area to volume ratio.

Single-celled organisms can form tissues.

No. Tissue formation is a benefit of multicellularity.

Single-celled organisms are simpler and thus less likely to experience breakdown or disease.

No. Though this may be true, the benefits of multicellularity generally far outweigh the costs.

Populations of cells in a multicellular body can be specialized for specific functions.

Think about what a group of cells can do that a single cell cannot.

Which of the following is a benefit of multicellularity compared to organisms consisting of just one cell?

Animation: Nervous Tissue

Tissues, Part 1: Crash Course Anatomy & Physiology #2

Animation: Muscle Tissue

No. Nervous tissue senses stimuli and transmits signals.

No. Occurring in sheets of tightly packed cells, epithelial tissue covers the outside of the body and lines organs and cavities within the body.

No. Muscle tissue actively contracts and causes body movements.

No. Skin is not a single tissue. Skin is composed of many tissues.

The name of this tissue type suggests its functions.

Which of the following tissues bind and support other tissues in the body?

No. Skin is composed of several types of tissue, including connective tissue.

No. Though red blood cells are found in blood, which is a type of connective tissue, neurons are cells of the nervous system.

No. Though cartilage and bone are types of connective tissue, epithelium is not a connective tissue.

Adipose tissue, dense and loose connective tissues, and neurons

No. Though adipose tissue, tendons, and ligaments are forms of connective tissue, neurons are cells of the nervous system.

Adipose tissue, cartilage, bone, and blood

Consider which of these connect or bind one part of your body to another.

Which of the following is a list of connective tissues?

Human embryonic stem cells are capable of forming all types of cells in the human body. How are these cells similar to meristem cells in plants?

Types of Tissue Part 4: Nervous Tissue

No. The extracellular matrix of bone is a mixture of organic fibers and inorganic minerals.

No. The rubbery extracellular matrix of cartilage contains large amounts of collagen and chondroitin sulfate.