Meiosis
Mitosis
Body Systems
Definitions
Random!
100
True or false, Meiosis happens in asexual reproduction
FALSE!
100
What is mitosis used for?
Growth and repair!
100
Which system is mainly involved in the blood and the heart?
Circulatory!
100
Cell differentiation
Every cell has the same DNA, but they become different because different genes are turned “on” and “off”
100
What is a zygote?
Fertilized egg
200
How many chromosomes are given to the product of Meiosis?
46!
(23 from sperm and 23 from egg!)
200
Is Mitosis asexual or sexual Reproduction?
Asexual!
200
If you are out of breath, which two systems will get you back to homeostasis?
If you’re out of breath, the circulatory and respiratory systems will help you get back to normal. Your breathing brings in more oxygen, and your blood carries it around your body.
200
Chromosomes
Threadlike structures made of protein and a single molecule of DNA that serve to carry the genomic information from cell to cell
200
What is homeostasis?
Keeping a stable internal environment.
300
What are sperm and egg cells called?
Gametes!
300
What does mitosis result in?
2 genetically identical daughter cells!
300
Give an example of 2 body systems working together to achieve a basic human body function.
Why did you say these?
300
Gene expression
When different genes are turned “on” and “off”
300
What are the levels of organization?
Cells -> Tissues -> Organs -> Organ System -> Organism
400
Is meiosis involved in growth and repair?
NO!
Mitosis is.
400
If one parent cell has 46 chromosomes, how many will it give to its offspring.
46! (exact same)
400
Explain how the Nervous and Muscular systems work together.
Work together to create movement. The nervous system sends signals to muscles, telling them when to contract or relax.
400
Placenta
The placenta is a temporary organ that connects the developing fetus to the mother's uterine wall. It provides nutrients and oxygen to the fetus and removes waste products
400
What would happen if the Vas Deferens was cut?
Sperm would not be able to leave the body.
500
What is the first Phase of Meiosis?
Prophase I
500
Why is it important for the chromosomes to be copied before mitosis begins?
Acceptable answers:
So the new cells are the same as the old one
So both new cells get all the DNA they need
So each cell has the right number of chromosomes
500
Using this diagram identify how the organisms work together to help the human body function.
Respiratory System: Facilitates gas exchange, providing oxygen necessary for cellular respiration and removing carbon dioxide, a waste product.
Cardiovascular System: Transports oxygen, nutrients, hormones, and waste products throughout the body via blood circulation, ensuring all cells receive what they need and waste is removed.
Digestive System: Breaks down food into absorbable nutrients, providing energy and building blocks for the body.
Skeletal System: Provides structural support, protects vital organs, and allows for movement.
Muscular System: Enables movement, maintains posture, and generates heat.
Nervous System: Acts as a control center, coordinating bodily functions and responding to stimuli.
Endocrine System: Regulates various bodily processes through hormones, influencing growth, metabolism, and reproduction.
Urinary System: Filters waste products from the blood and excretes them, maintaining fluid and electrolyte balance.
Integumentary System: Acts as a protective barrier against the external environment and helps regulate body temperature.
Lymphatic System: Helps maintain fluid balance and plays a role in the immune system.
Reproductive System: Ensures the continuation of the species.
500
Identical Twins
Develop from a single fertilized egg that splits into two embryos. This means that they share nearly all of their DNA making them genetically identical
500
What is the key difference or differences between antibodies and antigens
Antigens are foreign substances that trigger an immune response, while antibodies are proteins made by the immune system to recognize and attack those antigens.