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 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

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

Sternum

Radius

Scapula

Femur

None

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

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

The diffusion of water down its concentration gradient

Osmotic pressure created by proteins in Bowman’s capsule.

Active transport of waste products into the nephron.

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

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

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

Collecting duct

Proximal convoluted tubule

Glomerulus

None

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

Pelvic Girdle

Clavicle

Vertebral Column

Humerus

None

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

Thrombosis

Hemophilia

Anemia

Artritis

None

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

Electrical signal to mechanical signal to electrical signal

Electrical signal to chemical signal to electrical signal

Chemical signal to mechanical signal to electrical signal

Chemical signal to electrical signal to chemical signal

None

10.

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

To synthesize neurotransmitters for the neuron.

To act as an insulator and speed up impulse transmission.

To receive chemical signals from other neurons

To provide structural support to the cell body.

None

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