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

Afferent neuron

Interneuron

Efferent neuron

Sensory neuron

None

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

To receive chemical signals from other neurons

To provide structural support to the cell body.

To synthesize neurotransmitters for the neuron.

To act as an insulator and speed up impulse transmission.

None

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

Hemophilia

Anemia

Artritis

Thrombosis

None

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

Radius

Sternum

Scapula

Femur

None

What is the role of neurotransmitters such as acetylcholine and GABA?

To carry the chemical signal across the synapse to the next neuron.

To create a physical bridge for the impulse to cross the synapse.

To provide energy for the transmission of nerve impulses.

To form the myelin sheath around the axon.

None

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

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

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

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

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

None

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

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

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

None

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

Active transport of waste products into the nephron.

Osmotic pressure created by proteins in Bowman’s capsule.

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

The diffusion of water down its concentration gradient

None

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

Humerus

Vertebral Column

Clavicle

Pelvic Girdle

None

10.

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

It articulates with the skull and lacks a centrum.

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

It has a prominent odontoid process.

It has a long, downward-pointing spinous process.

None

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