★ Enzymes and Movement of Substances Quiz
What is a catalyst?
A. A substance that slows down a reaction and is used up.
B. A substance that increases the speed of a reaction and is used up.
C. A substance that increases the speed of a reaction without being changed or used up.
D. A substance that prevents a reaction from occurring.
Select your answer:
Topics:
Patient-Centered Endocrinology Skel, Musc, Nerv, Circ, Resp Energy and Metabolism Hele Skeletal System Joints & Movement Integumentary System: Skin Disorder Children Well-being Type 1 Diabetes Genes, Genomes & Alleles Circulatory & Lymphatic Body System Interactions Anatomy: Muscle Microbio (Viruses) Tongue and Skin Health SystemsOther quiz:
Hair Evidence › ViewWhat types of DNA can be found on the hair?
A. Mitochondrial
B. nuclear
C. Both mitochondrial and nuclear
D. none
Cells, Tissues and Organs › View
The job of the root hair cell is to:
A. help protect a root
B. help a root to take in water
C. help to get rid of wastes from a root
D. use photosynthesis to make food