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LS Unit 1 LC1 Review

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

Which of the following is a specialized cell responsible for carrying oxygen in the blood?

a)

Neuron

b)

Red blood cell

c)

White blood cell

d)

Platelet

2.

Which organ system is primarily responsible for transporting nutrients, gases, and wastes throughout the body?

a)

Digestive system

b)

Respiratory system

c)

Circulatory system

d)

Nervous system

3.

During which stage of mitosis do the chromosomes align at the center of the cell?

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

4.

What is the correct order of the hierarchy of living things from simplest to most complex?

a)

Organism, Organ, Tissue, Cell

b)

Cell, Tissue, Organ, Organism

c)

Tissue, Cell, Organ, Organism

d)

Organ, Cell, Tissue, Organism

5.

Which organ system includes the skin, hair, and nails?

a)

Muscular system

b)

Integumentary system

c)

Endocrine system

d)

Skeletal system

6.

What is the main function of neurons?

a)

To transport oxygen

b)

To transmit electrical signals

c)

To produce hormones

d)

To provide structural support

7.

Which stage of mitosis involves the separation of sister chromatids?

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

8.

Which organ system is responsible for producing hormones?

a)

Nervous system

b)

Endocrine system

c)

Respiratory system

d)

Digestive system

9.

What is the primary function of muscle cells?

a)

To store fat

b)

To conduct nerve impulses

c)

To contract and produce movement

d)

To transport nutrients

10.

Which of the following is the first stage of mitosis?

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

11.

Which organ system is responsible for the fight or flight response?

a)

Digestive system

b)

Nervous system

c)

Circulatory system

d)

Endocrine system

12.

Which of the following is NOT a type of tissue found in the human body?

a)

Epithelial

b)

Connective

c)

Nervous

d)

Skeletal

13.

Which stage of mitosis is characterized by the reformation of the nuclear envelope?

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

14.

Which organ system is primarily responsible for breaking down food and absorbing nutrients?

a)

Respiratory system

b)

Circulatory system

c)

Digestive system

d)

Nervous system

15.

Which organ system is responsible for protecting the body from external damage and pathogens?

a)

Integumentary system

b)

Respiratory system

c)

Digestive system

d)

Circulatory system

16.

What is the primary role of the respiratory system?

a)

To circulate blood

b)

To exchange gases

c)

To digest food

d)

To transmit signals

17.

What is the primary function of the skeletal system?

a)

To produce hormones

b)

To support and protect the body

c)

To circulate blood

d)

To transmit electrical signals

18.

Which organ system is responsible for removing waste products from the body?

a)

Respiratory system

b)

Digestive system

c)

Excretory system

d)

Nervous system

19.
Directs all cell activities through the DNA located there.
a)
Lysosomes
b)
Nucleus
c)
ribosomes
d)
Mitochondria
20.
I am the outer most layer of an animal cell. What am I?
a)
cell wall
b)
nucleus
c)
cell membrane 
d)
cell skin