BIO Exam Gr10 Flashcards
List the stages of the cells cycles in order
Interphase, (prophase, metaphase, anaphase, telephase), cytokinesis
Identify 2 key processes: interphase
- cell grows
- DNA replicates (in preparation to divide)
Identify 2 key processes: prophase
- DNA condenses into chromosomes
- nuclear membrane and nucleus dissolve
- microtubules form AND move to the poles of the cell
- spindle fibres start to form
Identify 2 key processes: metaphase
- spindle fibres –> attach to centROmeres
- ALSO moves chromosomes to the middle (aka metaphase plate or the equator)
Identify 2 key processes: anaphase
- cell widens
- spindle fibres pull the sister chromatids apart to the poles of the cell –> they are now daughter chromosomes
Identify 2 key processes: telophase
- daughter chromosomes thin
- microtubules + spindles BEGIN to disappear
- sides of the cell start to pinch
- nuclei form around the groups of chromosomes FAINTLY
Identify 2 key processes: cytokinesis
- spindle fibres FULLY dissolve
- the cell’s cytoplasm and organelles fully divide (making 2 daughter cells)
- chromosomes unwind and lengthen
- nuclear membranes and nucleolus become distinct
What is cell specialization?
Cell specialization is the process of generic cells becoming specialized to do different tasks in the body such as making specific tissues
What is tissue?
A tissue is a group of closely related cells that have specific functions
Which type of tissue helps with movement?
Muscle Tissue
Which 2 types of tissue protect internal tissues and organs?
Connective and Epithelial Tissue
Which type of tissue comprises the nervous system?
Nerve Tissue
Which type of tissue helps with contractions?
Muscle Tissue
Which type of tissue stores materials like fat?
Connective Tissue
Which type of tissue receives information from the external environment and then transmits (or sends) the information?
Nerve Tissue
Which type of tissue helps with absorption?
Epithelial Tissue
Which type of tissue is blood?
Connective Tissue
Which type of tissue contains bundles of nerve cells?
Nerve Tissue
Which type of tissue releases hormones?
Epithelial Tissue
What is digestion?
Digestion is the process of breaking down food into nutrients and having those nutrients be absorbed into cells so the body can create chemical energy
What is mechanical digestion?
It is the breakdown of food through physical movements
What organs use mechanical digestion?
Esophagus, stomach, both intestines, mouth
What is chemical digestion?
It is the secretion of enzymes to aid in the breakdown of food
What organs use chemical digestion?
tongue (saliva), stomach, small intestine, pancreas, and liver
What contains ridges so it can expand and contract when food enters and exits?
Stomach
What secretes hydrochloric acid to break down food?
Stomach
What is lined with gastric juices and mucus walls?
Stomach
What temporarily stores and churns food?
Stomach