Scope the Scene
This instrument uses lenses to magnify objects too small to see with the naked eye.
Microscope
Called the “control center” of the cell, it contains the DNA.
Nucleus
This rigid outer layer is found in plant cells but not in animal cells.
cell wall
This is the basic unit of structure and function in living things.
a cell
All the living and nonliving things interacting in one area, such as a coral reef.
an ecosystem
This part of a compound microscope is the lens you look through, usually 10x.
ocular lens (eyepiece)
Called the “powerhouse of the cell,” it releases energy from food.
mitochondrion
Plant cells have this organelle for making food, but animal cells do not.
chloroplast
A group of similar cells working together to do one job, such as muscle or nerve.
a tissue
All the organisms of the same species living in the same area.
a population
In 1665, this scientist looked at thin slices of cork and named the tiny boxes he saw “cells.”
Robert Hooke
This thin, flexible layer controls what enters and leaves the cell.
cell membrane
Plant cells are usually this shape, while animal cells are usually round or irregular.
rectangular (or box-like)
Different tissues working together form this level, such as the heart or stomach.
an organ
This is the highest level of biological organization, covering all places on Earth where life exists.
biosphere
A student uses a 10x eyepiece and a 40x objective lens. This is the total magnification.
400x
This green organelle contains chlorophyll and is where photosynthesis happens.
chloroplast
Amoebas and bacteria are made of only one cell, so they are called this.
unicellular organisms
Arrange from smallest to largest: organism, tissue, cell, organ system, organ.
cell → tissue → organ → organ system → organism
A group of bangus in a fishpond is one of these levels, while all the fish, plants, and microorganisms in the pond together are the next level up.
population and community
The cell theory says all living things are made of cells and the cell is the basic unit of life. Give the third statement.
“All cells come from pre-existing cells”
This organelle stores water, nutrients, and wastes, and is very large in mature plant cells.
vacuole
Name the structure that gives plant cells rigid support and the organelle both plant and animal cells use to release energy.
the cell wall and the mitochondria
This is the level formed when several organs work together, such as the digestive system.
organ system
If pollinators disappear from a rice field, explain how this lower-level change can affect higher levels.
“Plants can’t reproduce, their population drops, and the community and ecosystem become unbalanced”