Ch 4 Cells Tissues and Organs Flashcards
Provides energy de metabolic reactions in the form of the chemical _____, the energy compound of the cell.
ATP (adenosine troposphate)
What are the 3 main categories of organic compounds contained in cells?
- Protein
- Carbohydrates
- Lipids
Main carbohydrate which circulates in the blood to provide energy for the cells
Carbohydrates
Proteins include _____,______, and _______.
Enzymes, some hormones and structural materials
________ tissue is designed to store lipids.
Adipose (fat) tissue
Within the cell’s cytoplasm are subunits called ________
Organelles
Control region of the cell that contains chromosomes
Nucleus
Carry genetic information
Chromosomes
Each human cell, aside from the reproductive cells, contains ___ chromosomes
46
Within the chromosomes is _____ which is organized into separate units called genes.
DNA (deoxyribonucleic acid)
Control the formation of proteins
Genes
The catalysts needed to speed the rate of metabolic reactions
Enzymes
Cells use this compound to help manufacture proteins
RNA (ribonucleic acid)
Changes in the genes or chromosomes
Mutations
Levels of organization from chemicals to body as a whole
Chemicals > cell > tissue > organ > organ system > body
The process where body cells divide and chromosomes are doubled then equally distributed to the two daughter cells
Mitosis
When a cell isn’t dividing, it remains in a stage called ________
Interphase
The process in which reproductive cells divide which halves the chromosomes in preparation for fertilization
Meiosis
The study of cells
Cytology
What are the four basic types of tissues that cells are organized into?
- Epithelial
- Connective
- Muscle
- Nervous
_____ tissue covers and protects body structure and lines organs, vessels, and cavities.
Epithelial
What is the difference between simple and stratified epithelium?
Simple epithelium is composed of cells in a single layer and absorbs materials from one system to another
Stratified epithelium has cells in multiple layers and protects deeper tissues
T or F. Most of the active cells in glands are epithelial cells.
True.
____ tissue supports and binds body structures.
Connective
Examples of connective tissue
Blood, adipose tissue, cartilage, and bone
______ tissue contracts to produce movement.
Muscle
List the three types of muscle tissue.
- Skeletal muscle
- Cardiac muscle
- Smooth or visceral muscle
______ muscle moves the skeleton and has visible cross-bands (striations) involved in contraction
Skeletal muscle
Because skeletal muscle is under conscious control, it is also called _______ muscle.
Voluntary
_______ muscle forms the heart.
Cardiac
Cardiac muscle functions without concessions control and is described as _______.
Involuntary
_______ muscle forms the walls of the abdominal organs. It is involuntary
Smooth or visceral muscle
______ tissue makes up the brain, spinal cord and nerves.
Nervous tissue
Nervous tissue controls and coordinates body responded by _______.
Transmission of electrical impulses
The basic cell in nervous tissue
Neutron or nerve cell
Outer layer of the cell that encloses the cell contents, regulated what enters and leaves the cell and participates in cell growth, reproduction and interactions between cells
Plasma membrane
Short extensions of the cell membrane that absorbs materials into the cell
Microvilli
Large organelle near the centre of the cell composed of DNA, chromosomes and proteins
Nucleus
Small body in the nucleus composed of RNA, DNA and protein and makes ribosomes
Nucleolus
Colloidal suspension that fills the cell from the nuclear membrane to the plasma membrane and is the site of many cellular activities.
Cytoplasm
Consists of cytosol and organelles
Cytoplasm
The fluid portion of the cytoplasm that surrounds the organelles
Cytosol
Small bodies free in the cytoplasm of attached he’d go the ER, composed of RNA and protein that manufactures proteins
Ribosomes