Cyanide, photosynthesis quiz

What is the primary mechanism by which cyanide poisons the body?

• It binds to hemoglobin, preventing oxygen transport.

• It inhibits cytochrome C oxidase, preventing ATP production.

• It reacts with water to form a toxic gas.

• It causes blood vessels to constrict, leading to heart failure.

Which of the following is NOT a source of cyanide exposure?

• Inhaling helium gas

• Eating apple seeds

• Burning plastic

• Drinking contaminated water

What is a common symptom of cyanide poisoning?

• Nausea and vomiting

• Cherry-red skin

• Excessive sweating

• High blood pressure

Which compound is used as an antidote for cyanide poisoning?

• Vitamin C

• Aspirin

• Activated charcoal

• Hydroxocobalamin

What is the lethal dose of ingested cyanide for a 160-pound adult?

• About 1.0 grams

• About 0.1 grams

• About 2.0 grams

• About 0.5 grams

Which of the following foods contains a natural form of cyanide?

• Almonds

• Bananas

• Carrots

• Spinach

Which of the following symptoms is least likely to be associated with acute cyanide poisoning?

• Headache

• Rapid breathing

• Blue-tinted skin

• Seizures