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Biology Quiz

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

Positive feedback differs from negative feedback because it:

a)

Involves the regulation of body temperature

b)

Amplifies the original stimulus

c)

Is used for most homeostatic processes

d)

Inhibits the original stimulus

2.

The sagittal plane divides the body into:

a)

Front and back portions

b)

Top and bottom portions

c)

Right and left portions

d)

Equal upper and lower portions

3.

The pericardial cavity contains the:

a)

Lungs

b)

Heart

c)

Liver

d)

Brain

4.

An anion is an ion that:

a)

Gains electrons and becomes negatively charged

b)

Loses electrons and becomes positively charged

c)

Gains protons and becomes positively charged

d)

Loses protons and becomes negatively charged

5.

The normal pH of human blood is:

a)

6.5

b)

7.4

c)

8.0

d)

7.0

6.

Glycogen is stored primarily in:

a)

Adipose tissue

b)

Liver and muscles

c)

Bone marrow

d)

Skin

7.

Which organelle is responsible for protein synthesis?

a)

Mitochondria

b)

Golgi apparatus

c)

Ribosomes

d)

Lysosomes

8.

Facilitated diffusion requires:

a)

ATP

b)

A carrier protein

c)

Both A and B

d)

Neither A nor B

9.

During which phase of mitosis do sister chromatids separate?

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

10.

Stratified epithelium is found in areas requiring:

a)

Filtration

b)

Absorption

c)

Protection from abrasion

d)

Rapid diffusion

11.

Fibroblasts produce:

a)

Cartilage

b)

Collagen and extracellular matrix

c)

Bone tissue

d)

Muscle fibers

12.

The outermost layer of the epidermis is the:

a)

Stratum basale

b)

Stratum corneum

c)

Stratum spinosum

d)

Stratum granulosum

13.

Apocrine sweat glands are found primarily in the:

a)

Palms and soles

b)

Armpits and groin

c)

Forehead and back

d)

Face and neck

14.

The epiphyseal line is a remnant of the:

a)

Periosteum

b)

Epiphyseal plate

c)

Medullary cavity

d)

Spongy bone

15.

Which hormone increases blood calcium levels?

a)

Calcitriol

b)

Calcitonin

c)

Parathyroid hormone

d)

Insulin

16.

How many carpal bones are in each wrist?

a)

6

b)

7

c)

8

d)

9

17.

The atlas is unique because it:

a)

Has a dens

b)

Articulates with the occipital bone

c)

Does not have a body

d)

Both B and C

18.

The accessory structure of a synovial joint that reduces friction is the:

a)

Tendon

b)

Ligament

c)

Meniscus

d)

Bursa

19.

The joint with the greatest range of motion is the:

a)

Hip joint

b)

Elbow joint

c)

Knee joint

d)

Shoulder joint

20.

The acetabular labrum is found in the:

a)

Shoulder joint

b)

Hip joint

c)

Knee joint

d)

Elbow joint

21.

Thin filaments are primarily composed of:

a)

Myosin

b)

Actin

c)

Tropomyosin

d)

Troponin

22.

Concentric isotonic contractions involve:

a)

Muscle lengthening

b)

Muscle shortening

c)

No change in muscle length

d)

Increasing muscle tension without movement

23.

The agonist in elbow flexion is the:

a)

Triceps brachii

b)

Biceps brachii

c)

Brachialis

d)

Deltoid

24.

Which rotator cuff muscle is most commonly injured?

a)

Supraspinatus

b)

Infraspinatus

c)

Subscapularis

d)

Teres minor

25.

Which neuroglia in the CNS forms the blood-brain barrier?

a)

Microglia

b)

Astrocytes

c)

Oligodendrocytes

d)

Ependymal cells

26.

Which part of a neuron transmits impulses away from the cell body?

a)

Dendrite

b)

Axon

c)

Soma

d)

Synaptic terminal

27.

The central canal of the spinal cord is filled with:

a)

Blood

b)

Cerebrospinal fluid

c)

Lymph

d)

Synovial fluid

28.

The dorsal root ganglion contains:

a)

Motor neuron cell bodies

b)

Sensory neuron cell bodies

c)

Interneuron cell bodies

d)

None of the above

29.

The thalamus is primarily responsible for:

a)

Memory formation

b)

Relaying sensory information

c)

Regulating hormones

d)

Controlling balance

30.

Damage to the hippocampus primarily affects:

a)

Vision

b)

Memory formation

c)

Emotional regulation

d)

Balance and coordination

31.

The fovea centralis is responsible for:

a)

Peripheral vision

b)

High-acuity vision

c)

Night vision

d)

Color blindness

32.

Cataracts are caused by:

a)

Clouding of the lens

b)

Increased intraocular pressure

c)

Damage to the retina

d)

Blockage of the nasolacrimal duct

33.

Which part of the ear detects rotational movement?

a)

Cochlea

b)

Semicircular ducts

c)

Vestibule

d)

Tympanic membrane

34.

Which ossicle connects to the oval window?

a)

Malleus

b)

Incus

c)

Stapes

d)

Tympanic membrane

35.

The auditory tube connects the middle ear to the:

a)

Inner ear

b)

Nasopharynx

c)

External auditory canal

d)

Tympanic membrane

36.

The hypothalamus regulates:

a)

Body temperature and hunger

b)

Memory and emotion

c)

Reflexes and balance

d)

Hearing and vision

37.

The zygomaticus major muscle allows for:

a)

Chewing

b)

Smiling

c)

Frowning

d)

Blinking

38.

Which nerve innervates the serratus anterior?

a)

Axillary nerve

b)

Long thoracic nerve

c)

Median nerve

d)

Radial nerve

39.

Which layer of meninges is closest to the brain?

a)

Dura mater

b)

Arachnoid mater

c)

Pia mater

d)

Subarachnoid space

40.

The largest organ of the human body is the:

a)

Liver

b)

Skin

c)

Lungs

d)

Brain

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