Interim Review Practice-23

Hawaiian happy face spiders from the island of Maui can have different markings as shown below. A single gene determines the marking on the spiders, and the patterned allele is dominant to the plain allele.

A plain spider is crossed with a homozygous patterned spider, Which of the following phenotypic ration is to be expected?

• 100% plain, 0% patterned

• 50% plain, 50% patterned

• 25% plain, 75% patterned

• 0% plain, 100% patterned

________ is the monomer of a lipid.

Amino acids are the monomer of _______

Nucleic acids are built from _____

Monosaccharides are basic building blocks of -

• Proteins

• Nucleic Acids

• Carbohydrates

• Lipids

Which arrow(s) represent the process of cellular respiration?

• A

• A & C

• B

• B & C

Line ____ represents a reaction that shows an enzyme at work.

In photosynthesis, chlorophyll performs that function of changing-

• glucose molecules into starch

• light energy into chemical energy

• hydrogen bonds into water

• water and sugars into oxygen

Which structures do both prokaryotic and eukaryotic cells have?

• mitochondria

• plasmids

• chloroplast

• DNA

In what ways do enzymes help a cell carry out its chemical reactions?

• Enzymes lower the amount of reactants needed for the reaction to occur.

• Activation energy and the rate of reaction are both increased by enzymes.

• Enzymes speed up chemical reactions by lowering the activation energy needed.

• Enzymes slow the reaction down by increasing the amount of energy produced.