& Life Processes
Observe the following object. Determine if it is living or nonliving and explain your reasoning.
Living - organelles (nucleus, cell membrane, cytoplasm)
Name the two organelles that are found only in plant cells.
Cell wall and chloroplast
The organelle where photosynthesis occurs.
Chloroplast
A group of organs that work together.
Organ system
A living thing that breaks down wastes and eats dead things.
Decomposer
Observe the following object. Determine if it is living or nonliving and explain your reasoning.
Nonliving - no organelles
This organelle allows materials to move into and out of the cell:
Cell Membrane
The organelle where cellular respiration occurs.
Mitochondria
As the rate of exercise increases, the heart rate ______.
Increases
All of Earth's ecosystems make up the ________.
Biosphere
As an organism grows, their mass _______.
Increases
This organelle is the site of photosynthesis and makes food for the plant:
Chloroplasts
This process can be performed by both animal and plant cells.
Cellular respiration
Name the 2 body systems that work together when oxygen is inhaled into the lungs and then oxygen is transported throughout the body in the bloodstream.
Respiratory (lungs) and circulatory (bloodstream)
In ecosystems, all energy for life comes from this source.
The Sun
An action your body does after something happens (ex. mouth waters, moves hand away)
Response
The difference between a prokaryotic cell and a eukaryotic cell. (Hint: "Pro" means "no")
A prokaryotic cell doesn’t have a nucleus.
A eukaryotic cell has a nucleus.
Glucose (C6 H12 O6) and Oxygen (O2) are the two products of this process.
Photosynthesis
List 3 functions of the skeletal system.
Support, protection, makes blood.
Define consumer and list the 3 types of consumers.
Consumer - An organism that cannot make its own food
Herbivore- eat plants
Carnivore- eat meat
Omnivore- eats plants and animals
Something that causes you to react (ex. smell good food, touch hot object)
Stimulus
Explain why water moves out of a cell across the membrane when placed in salt water and what happens to the cell's appearance.
When a cell is placed into saltwater, water will leave the cell and move into the salt water. Salt water always has a lower water concentration. Water naturally wants to move from high concentration to low concentration. The cell membrane and cytoplasm will shrink.
Carbon dioxide (CO2), water (H20), and chemical (ATP) energy are the products of this process.
Cellular respiration
List the five levels of organization of living systems from smallest to largest.
Cells - The basic unit and function of all living things.
Tissue - Group of similar cells performing the same function.
Organs - A group of specialized tissues performing one main function.
Organ Systems - A group of organs that carry on one of the major body functions.
Organism - Made up of systems that perform its functions.
Many overlapping food chains where there are always more producers than consumers.
Food webs