What is a well-tested explanation that unifies many observations?
Theory
What type of bond involves sharing electrons?
Covalent bond
What organelle controls cell activities and contains DNA?
Nucleus
What is movement from high to low concentration?
Diffusion
What organelle captures sunlight energy?
Chloroplast
What process releases energy from glucose using oxygen?
Cellular respiration
What is the study of living things called?
Biology
What is the most abundant inorganic molecule in cells?
Water
What structure supports and protects plant cells?
Cell wall
What is diffusion of water across a membrane?
Osmosis
Why do plants appear green?
They reflect green light
What organelle performs cellular respiration?
Mitochondria
The process of using evidence and experimentation to make observable predictions and descriptors about the world
Science
What particles are found in the nucleus of an atom?
Protons and neutrons
What organelle is found only in plant cells?
Chloroplast
What transport process requires energy?
Active transport
Which color light is least effective for photosynthesis?
Green
How many ATP are produced in respiration according to the test?
36 ATP
What process keeps internal conditions stable?
Homeostasis
A substance with pH 6 is classified as what?
Acid
What type of cell lacks a nucleus?
Prokaryote
Why do large cells struggle to survive?
Low surface area-to-volume ratio
What gas is released during photosynthesis?
Oxygen
What molecule stores energy for IMMEDIATE cell use?
ATP
What type of statement can be tested in an experiment?
Hypothesis
What organic macromolecule is the MAIN energy source for cells?
Carbohydrates
What is a group of similar cells working together called?
Tissue
What structure controls what enters and leaves a cell?
Cell membrane
What are the reactants of photosynthesis?
Carbon dioxide and water
What gas is required for aerobic respiration?
Oxygen