Metabolism

The chemical reactions in which an organism builds up or breaks down materials like photosynthesis and cellular respiration are called

• reproduction

• homeostasis

• metabolism

• growth and development

The molecule used by cells to release and store energy.

• DNA

• RNA

• ATP

• Adenosine Triphosphate

Answer explanation

ATP is an acronym for Adenosine Triphosphate!

ATP stores energy for the cell when is changes from _________ to ATP form.

• RNA

• DNA

• AMP

• ADP

Answer explanation

Cell use ATP to get cellular work done. Examples of cellular work are:

• Active transport of materials across a membrane

• diffusion of molecules in the cytoplasm

• spindle fibers pulling apart sister chromatids during anaphase

• whipping of a flagella to move the cell

Answer explanation

Diffusion requires no energy from the cell.

These organisms are typically plants, algae and some bacteria. They provide energy for the biosphere by making their own food.

• heterotrophs

• autotrophs

• decomposers

• consumers

These organisms are the consumers of the biosphere. They obtain energy by eating other living things.

• Heterotrophs

• Producers

• Autotrophs

• Decomposers

These are light-gathering molecules found in living things. Chlorophyll is an example.

• photosynthesis

• pigments

• DNA

Chlorophyll is found in this organelle which is unique to plants.

• lysosomes

• mitochondria

• chloroplast

• cytoplasm

Answer explanation

These are the products of photosynthesis:

• Carbon dioxide and water

• Glucose and oxygen

• Carbon dioxide and oxygen

• Glucose and water

Answer explanation

How we quantify the energy in food:

• ATP

• Chlorophyll

• Calories