final exam

Which variable do "I" change intentionally?

• Independent variable
• Dependent variable
• Constant
• s

The dependent variable in this experiment is - 

• Number of Bacteria
• Time of Incubation
• Culture Number
• Type of Bacteria

Proteins are made of monomers called ___________

• Nucleotides
• Monosaccharides
• Amino Acids
• Glycerol and fatty acids

The element _______is found in all of the organic compounds.

• Iron
• Nitrogen
• Carbon
• Oxygen

Waxes, oils and fats are examples of

• Carbohydrates
• Lipids
• Proteins
• Nucleic Acids

In what part of the plant cell does the process of photosynthesis take place?

• nucleus
• mitochondria
• chloroplasts
• vacuoles

He discovered that all plants are made of cells:

• Anton van Leeuwenhoek
• Theordor Schwann
• Robert Hooke
• Mattias Schleiden

The basic unit of structure and function in a living things.

• chloroplast
• nucleus
• cell
• cell membrane

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine