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?

Sensory neuron

Interneuron

Afferent neuron

Efferent neuron

None

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

Radius

Sternum

Femur

Scapula

None

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

To form the myelin sheath around the axon.

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

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

To provide energy for the transmission of nerve impulses.

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.

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

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

None

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

Active transport of waste products into the nephron.

The diffusion of water down its concentration gradient

Osmotic pressure created by proteins in Bowman’s capsule.

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

None

The transmission of a nerve impulse across a synapse involves the conversion of signals. What is the correct sequence of this conversion?

Chemical signal to mechanical signal to electrical signal

Electrical signal to chemical signal to electrical signal

Electrical signal to mechanical signal to electrical signal

Chemical signal to electrical signal to chemical signal

None

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

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

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

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

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

None

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

Vertebral Column

Clavicle

Pelvic Girdle

Humerus

None

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

To receive chemical signals from other neurons

To act as an insulator and speed up impulse transmission.

To provide structural support to the cell body.

To synthesize neurotransmitters for the neuron.

None

10.

The functional unit of the kidney responsible for forming urine is the nephron. Which part of the nephron is primarily responsible for the selective reabsorption of glucose and amino acids?

Loop of Henle

Proximal convoluted tubule

Collecting duct

Glomerulus

None

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