Kuiz Sains Tambahan Tingkatan 5 Bab 1 Set 1

SELAMAT DATANG Kuiz Sains Tambahan Tingkatan 5 Bab 1 Set 1

Penyenggaraan Dan Kesinambungan Hidup (English)

KUIZ INI MENGANDUNGI 10 SOALAN

Which of the following best describes the cause of Alzheimer's disease as mentioned in the source material?

A genetic disorder affecting the myelin sheath, leading to muscle weakness

The formation of blood clots in the brain, leading to memory loss.

Shrinkage of brain tissue and reduced secretion of the neurotransmitter acetylcholine.

A progressive disorder caused by a lack of the neurotransmitter dopamine.

None

Which type of neuron is responsible for transmitting nerve impulses from the central nervous system to an effector like a muscle or gland?

Afferent neuron

Efferent neuron

Sensory neuron

Interneuron

None

Which of the following is NOT part of the appendicular skeleton?

Vertebral Column

Pelvic Girdle

Humerus

Clavicle

None

The human skeleton is divided into two main parts. Which of the following bones belongs to the axial skeleton?

Radius

Femur

Sternum

Scapula

None

What is the main driving force behind the process of ultrafiltration in the glomerulus?

The diffusion of water down its concentration gradient

High hydrostatic pressure due to the differing diameters of afferent and efferent arterioles.

Osmotic pressure created by proteins in Bowman’s capsule.

Active transport of waste products into the nephron.

None

Which condition is characterized by the formation of a blood clot inside a blood vessel, obstructing the flow of blood?

Hemophilia

Artritis

Thrombosis

Anemia

None

During hemodialysis, how are waste products like urea removed from the patient's blood?

They are filtered out using a high-pressure system similar to the glomerulus.

They diffuse from the blood into the dialysis fluid down a concentration gradient.

They are chemically broken down by enzymes present in the dialysis fluid.

They are actively transported out of the blood by the dialysis machine.

None

Which of the following correctly describes a symptom and cause of osteoporosis?

Symptom: Joint inflammation; Cause: Uric acid crystal buildup.

Symptom: Progressive muscle weakening; Cause: A mutant gene on the X chromosome.

Symptom: Inability of blood to clot; Cause: Lack of clotting factors.

Symptom: Porous, brittle bones; Cause: Lack of calcium and Vitamin D.

None

What is the unique feature of the first cervical vertebra, known as the atlas, that allows for the nodding motion of the head?

It has a prominent odontoid process.

It articulates with the skull and lacks a centrum.

It has a large, thick centrum to support the skull.

It has a long, downward-pointing spinous process.

None

10.

What is the primary function of the myelin sheath that surrounds some axons?

To provide structural support to the cell body.

To act as an insulator and speed up impulse transmission.

To synthesize neurotransmitters for the neuron.

To receive chemical signals from other neurons

None

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