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Questions and Answers
Which organelle is responsible for synthesizing ribosomes?
Which organelle is responsible for synthesizing ribosomes?
What is the process called when a cell takes in large amounts of materials actively?
What is the process called when a cell takes in large amounts of materials actively?
In which type of solution would a red blood cell lose water and shrivel?
In which type of solution would a red blood cell lose water and shrivel?
Which of the following tissue types does not have a direct blood supply?
Which of the following tissue types does not have a direct blood supply?
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What is the main characteristic of connective tissue?
What is the main characteristic of connective tissue?
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What type of transport involves movement from an area of higher concentration to an area of lower concentration?
What type of transport involves movement from an area of higher concentration to an area of lower concentration?
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What do we call the process where DNA makes a copy of itself?
What do we call the process where DNA makes a copy of itself?
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Which tissue type covers body surfaces or forms glands?
Which tissue type covers body surfaces or forms glands?
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Which active transport mechanism removes large amounts of solid materials from a cell?
Which active transport mechanism removes large amounts of solid materials from a cell?
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Which type of muscle tissue is capable of contraction to exert force?
Which type of muscle tissue is capable of contraction to exert force?
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Study Notes
Organelles
- Ribosomes are responsible for protein synthesis.
- The rough endoplasmic reticulum (ER) is where membrane components are synthesized.
- The nucleolus is the site where ribosomes are made.
- Chromatin is the form DNA takes most of the time.
- Active transport requires energy to move substances across cell membranes.
- Passive transport does not require energy to move substances across cell membranes.
- Solute pumping and bulk transport are two types of active transport.
- Endocytosis is the process of actively taking in large amounts of materials.
- Exocytosis is the process of actively removing large amounts of solid materials.
- Filtration is a type of transport that requires a hydrostatic pressure difference.
- The sodium/potassium pump is an example of a solute pump.
- A hypertonic solution has more dissolved solutes than the cell, causing water to move out of the cell.
- A hypotonic solution has more water than the cell, causing water to move into the cell.
- A red blood cell placed in a solution of high salt content will lose water and shrivel (crenate) due to the hypertonic environment.
- Diffusion is the movement of substances from an area of higher concentration to lower concentration.
- Phagocytosis is the engulfing of solid particles by a cell.
- Pinocytosis is the engulfing of liquid particles by a cell.
- Replication is the process of DNA copying itself.
- Transcription is the process of mRNA copying DNA.
- Translation is the making of a protein at the ribosome.
Tissue Types
- The four basic tissue types are epithelial, connective, muscle, and nerve.
- Connective tissue is the most common of the four tissue types.
- Muscle tissue cells shorten to exert force.
- Epithelial tissue covers body surfaces or forms glands.
- Epithelial tissue has a free surface that is not in contact with other cells.
- Connective tissue joins together cells and tissues and transports substances.
- Connective tissue provides supporting framework for the body.
Connective Tissue
- Connective tissue is characterized by large amounts of extracellular matrix.
- Epithelial tissue is attached to underlying structures by a basement membrane.
- Connective tissue, muscle tissue, and nervous tissue have a rich supply of blood vessels.
- Epithelial tissue does not have a direct blood supply.
- Muscle tissue has fibers that allow them to contract.
- Nervous tissue can conduct an electrical current.
- Adipose tissue, bone, and cartilage are all types of connective tissue.
- A neuron is a type of nervous tissue.
Muscle Tissue
- The three types of muscle tissue are skeletal, smooth, and cardiac.
- Skeletal muscle is attached to bones and is responsible for movement.
- Smooth muscle is found in the walls of internal organs and blood vessels.
- Cardiac muscle is found only in the heart and is responsible for pumping blood.
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Description
This quiz covers key concepts related to cellular organelles, their functions, and the mechanisms of transport across cell membranes. Explore details about ribosomes, endoplasmic reticulum, and the differences between active and passive transport. Test your understanding of concepts like endocytosis, exocytosis, and solute pumping.
