Blood 8th Grade

Apa yang menyusun sekitar 55% dari darah?

• Plasma

• Sel Darah Merah

• Sel Darah Putih

• Platelet

Answer explanation

Plasma makes up about 55% of blood and is the liquid component that carries cells, nutrients, hormones, and waste products. In contrast, red blood cells, white blood cells, and platelets make up the remaining 45%.

Apa yang membawa oksigen ke seluruh tubuh?

• Plasma

• Sel Darah Merah

• Platelet

• Sel Darah Putih

Answer explanation

Red Blood Cells are responsible for carrying oxygen throughout the body. They contain hemoglobin, a protein that binds to oxygen in the lungs and releases it in tissues, making them essential for oxygen transport.

Apa yang menyebabkan darah memiliki warna merah yang khas?

• Hemoglobin

• Glukosa

• Hormon

• Oksigen

Answer explanation

Blood's characteristic red color is primarily due to hemoglobin, a protein in red blood cells that binds oxygen. When oxygen is attached, hemoglobin reflects red light, giving blood its vibrant color.

Apa fungsi (tugas) sel darah putih?

• Mengangkut oksigen ke seluruh tubuh.

• Membawa gula terlarut.

• Memadatkan dan menutupi luka seperti goresan.

• Melepaskan antibodi untuk membantu menghancurkan infeksi.

Answer explanation

White blood cells play a crucial role in the immune system by releasing antibodies that help destroy infections, making this the correct function. The other options relate to different blood components or functions.

Apa fungsi (tugas) plasma?

• Melepaskan antibodi untuk melawan infeksi.

• Mengangkut oksigen ke seluruh tubuh.

• Membawa nutrisi dan gula terlarut.

• Mengangkut oksigen ke seluruh tubuh.

Answer explanation

Plasma is the liquid component of blood that carries nutrients, hormones, and dissolved substances, including sugars, throughout the body. This function is crucial for maintaining cellular health and energy.

Apa fungsi (tugas) sel darah merah?

• Mengangkut oksigen ke seluruh tubuh dan ke otot.

• Melepaskan antibodi untuk melawan infeksi.

• Membawa nutrisi dan gula terlarut.

• Menggumpal dan membentuk keropeng jika ada luka di tubuh.

Answer explanation

Red blood cells are primarily responsible for transporting oxygen from the lungs to the rest of the body, including the muscles, which is essential for energy production and overall function.

Apa itu plasma?

• hanya sel darah putih

• hanya sel darah merah

• bagian cair dari darah

• hemoglobin

Answer explanation

Plasma is the liquid part of blood, making up about 55% of its volume. It contains water, salts, and proteins, and is essential for transporting nutrients, hormones, and waste products throughout the body.

Manakah di antara berikut ini yang BUKAN bagian dari sistem peredaran darah?

• Perut

• Jantung

• Arteri

• Kapiler

Answer explanation

The stomach is part of the digestive system, not the circulatory system. The heart, arteries, and capillaries are all components of the circulatory system, responsible for transporting blood throughout the body.

Bagian mana dari darah yang bertanggung jawab untuk melawan infeksi?

• Sel Darah Merah

• Sel Darah Putih

• Platelet

• Plasma

Answer explanation

White blood cells are the part of the blood responsible for fighting infections. They identify and destroy pathogens, making them crucial for the immune response.

Bagian mana dari darah yang bertanggung jawab untuk mengangkut oksigen dan karbon dioksida ke dan dari sel-sel tubuh?

• Sel Darah Merah

• Sel Darah Putih

• Platelet

• Plasma

Answer explanation

Red Blood Cells are responsible for transporting oxygen from the lungs to the body's cells and carrying carbon dioxide back to the lungs for exhalation. This makes them essential for respiration and maintaining cellular function.