DIAGNOSTIC TEST CHAPTER 8 SB025 2024_2025

What type of transport moves molecules from high to low concentration?

• Osmosis

• Active transport

• Diffusion

• Facilitated diffusion

Which process requires ATP to move substances against a concentration gradient?

• Osmosis

• Passive transport

• Active transport

• Diffusion

Which blood vessel has the thickest walls due to high pressure?

• Vein

• Capillary

• Artery

• Lymphatic vessel

Why do veins have thinner walls than arteries?

• They carry more oxygen

• They have higher blood pressure

• They carry low-pressure blood

• They lack smooth muscle

What is the main function of hemoglobin?

• Transport oxygen

• Transport carbon dioxide

• Clot blood

• Regulate blood pressure

Why does oxygen bind to hemoglobin in the lungs?

• Higher CO concentration

• Lower CO concentration

• Lower O concentration

• Higher temperature

What type of pressure drives fluid out of capillaries into tissues?

• Osmotic pressure

• Hydrostatic pressure

• Turgor pressure

• Diffusion

Which condition results when fluid accumulates in tissues?

• Hypertension

• Edema

• Anemia

• Hyperoxia

Which type of muscle is found in the heart?

• Skeletal

• Smooth

• Cardiac

• Voluntary

What controls the contraction of the heart?

• Nervous system

• Pacemaker cells

• Red blood cells

• Blood pressure