Task 3. Cell
Cage is a structural unit of any organism. At the same time she is an entire living
system (Figure 3).
150
Question 1. What is the structure of the cell is shown in Figure 3?
Figure 4
A. endoplasmic reticulum
B. plasma membrane
C. Golgi complex
D. vacuole
Answer: ______________.
Question 2. What are the branch of biology that studies living cells and their
organelles, their structure, function, cell division processes, aging and death.
A. cytology
B. photobiology
C. physiology
D. immunology
Answer: ______________.
Figure 3
151
Task 4. Skin
In Biology - outer covering of vertebrates
is called a skin. The skin protects the body from
a wide range of external factors, is involved in
respiration, thermoregulation, metabolism and
many other processes. Moreover, the skin
presents a massive receptive field of various
kinds of surface sensitivity.
Figure 5
Question 1. The skin is the largest organ on the square. What is the percentage
of the weight of the skin relative to body weight?
A. 12-15%
B. 10-25%
C. 8-11%
D. 25-30%
Answer: ______________.
Question 2. Skin thickness is different on
different parts of the body. What part of the
body covered by the thinnest skin?
A.Ladon
B.Stopa
C. Eyelids
D. Stomach
Answer: ______________.
Figure 6
Question 3. The skin is composed of layers
of different embryonic origin.
What is the outer layer of skin?
A. Follicles
B. Hypodermis
C. Dermis
D. Epidermis
Answer: ______________.
Figure 7
Question 4: The skin - the body that is
updated more frequently than any other.
Hourly your skin loses about 600,000 horny
scales. Their weight is 700 - 800 grams. And
by the age of 70 lost about 60 kg of skin. How long does it take to change all the
cells?
152
Figure 8
A. 22-25 days
B. 30-40 days
C. 52-77 days
D. 100-120 days
Answer: ______________.
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