Bio Retester Review

Which four body systems interact to allow a person to sneeze?

• Muscular, immune, nervous, respiratory
• Nervous, respiratory, circulatory, skeletal
• Respiratory, endocrine, skeletal, circulatory
• Lymphatic, skeletal, respiratory, muscular

Gibberellins are hormones produced in the root tips of plants. The plant uses these hormones to stimulate the growth of shoots.

How are gibberellins able to affect other parts of the plant?

• Gibberellins are absorbed through the stomata and attach to chloroplasts.

• Gibberellins are transported through vascular tissues to other parts of the plant.

• Gibberellins become concentrated within the tissues of the plant during mitosis.

• Gibberellins become modified once they infect healthy cells and are later released to infect other cells.

The fuzzy millipede, Polyxenus fasciculatus, is found in Texas and is preyed upon by most species of ants. To protect itself against the ants, it ejects fibers from a tuft located at the tail end of its body. The tufts have hooks at the tips and barbs along their length that lock and interlink with the ant’s setae, small hairs that cover the body of the ant. When an ant attacks, the millipede flexes its back end toward the ant and wipes the tufts against it. As the ant attempts to remove the tufts, it entangles itself more, becoming immobilized.

• Muscular and integumentary

• Immune and muscular

• Integumentary and endocrine

• Endocrine and immune

A chart of some plant systems and functions is shown.

• Option 1

• Option 2

• Option 3

• Option 4

A feedback mechanism in the human body is shown.

• The nervous and reproductive systems work together to stimulate the production of insulin.

• The circulatory and endocrine systems work together to keep blood sugar levels constant.

• The excretory and nervous systems work together to convert glycogen into glucose.

• The immune and circulatory systems work together to circulate blood through the pancreas.

A table of four types of carbohydrates is shown.

• Energy: glycogen and starch Structure: cellulose and chitin

• Energy: cellulose and chitin Structure: glycogen and starch

• Energy: chitin and glycogen Structure: cellulose and starch

• Energy: cellulose and starch Structure: chitin and glycogen

Transmembrane proteins span the width of cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane.

• stop chemical reactions within the cell

• synthesize molecules that signal other cells

• help the cell interact with its external environment

• remove large waste particles from the cytoplasm of the cell

The model shows a mutation to a partial sequence of bases in a gene.

• Deletion

• Insertion

• Substitution

• Translocation

Exposure to the building material asbestos has been linked to certain types of cancers. Asbestos causes mutations in the p53 gene, which controls tumor suppression. Which statement best explains why people with cancer due to asbestos exposure do not pass the mutation on to their offspring?

• The mutation occurred in gametic cells.
• The mutation occurred in somatic cells.
• The mutation is recessive.
• The mutation is sex-linked

A segment of a DNA strand is shown.

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