WorksheetsSummative Test for Living Things and Their Environment
Total questions: 40
Worksheet time: 22mins
Which of the following analogies is CORRECT about Respiratory and Circulatory Systems?
Respiratory System: Heart; Circulatory System: Lungs
Respiratory System: Lungs; Circulatory System: Heart
Respiratory System: Arteries; Circulatory System: Alveoli
Respiratory System: Circulation; Circulatory System: Breathing
Why is oxygen gas important in the survival of organisms?
It combines with blood to increase its pressure
It binds with blood to remove it as a waste product
It binds in nitrogen to power up the activities of the cell
It combines with nutrients to power up the activities of the cell
Which part of the heart receives deoxygenated blood?
Right atrium
Right ventricle
Left atrium
Left ventricle
Which statement/s given below is/are TRUE about the function of the Respiratory System?
I. Filters incoming air
II. Fighting infections and killing pathogens.
III. Transport nutrients, hormones and remove waste products.
IV. Supplies the body with oxygen and disposes of carbon dioxide.
I and II
III and IV
II and III
I and IV
Which of the following choices is FALSE?
Plasma is the non-living matrix of blood
Blood turns red when exposed to oxygen
Leukocytes function in blood clotting
Hemoglobin transports oxygen throughout the body
Which organ system below is closely related to the cardiovascular system in terms of function?
Digestive
Nervous
Respiratory
Endocrine
What process aids the gaseous exchange in the body?
Effusion
Diffusion
Fusion
Fission
Which statement/s given below is/are TRUE about the function of the Circulatory System?
I. Filters incoming air
II. Fighting infections and killing pathogens
III. Transport nutrients, hormones and remove waste products
IV. Supplies the body with oxygen and disposes of carbon dioxide
I and II
III and IV
II and III
I and IV
Justin has a blood type A. From whom he can receive blood for blood transfusion?
A and O
AB and O
A and B
O only
What happens to the lungs, intercostal muscles, rib cage, and diaphragm when we breathe in?
Expand
Relax
Expand and relax
nothing
What factor below is the reason why arteries are big in diameter and have thick walls?
Density
Pressure
Temperature
Volume
Why heart is known as a “double-pump” organ?
Because it removes waste products from the body
Because it carries important substances needed by the body
Because it pumps the blood to the lungs and to the rest of the body
none of the above
Why cigarette smoking is dangerous to our health?
Because of its dangerous substances
Because the smoke paralyzes the respiratory tract
Because it narrows the blood vessels and alters the function of organs
All of the above
Arianna has a sick brother who needs blood in order to recover from an operation. Her brother's blood type is AB. What blood type/s is/are safe for transfusion?
A
B
O
A, B, AB and O
What happens to the lungs, intercostal muscles, rib cage, and diaphragm when we breathe out?
Expand
Relax
Expand and relax
nothing
Which of the following nitrogenous bases below is NOT found in DNA?
Adenine
Guanine
Cytosine
Uracil
Curt breeds a flower from red and white Camellia to increase the income of his flower shop. He was shocked that after a month the hybrid flower expresses the equal color of red and white. What Non-Mendelian pattern of inheritance correctly describes the scenario?
Incomplete Dominance
Sex-linked Inheritance
Codominance
Multiple Alleles
How many chromosomes do humans have?
23
46
How many pairs of chromosomes do humans have?
23
46
During cell division, each new daughter cell must have the same copy of genetic information found in DNA. Which of the following refers to the process of copying a DNA molecule?
Replication
Transcription
Translation
Insertion
How is sex determined?
Sex is determined through sexual intercourse
Sex is determined when an egg is fertilized by sperm
Sex is determined through autosomal chromosomes
Sex is determined through sex chromosomes, X and Y
Ivan breeds a flower from red and white Anthurium to surprise his girlfriend who loves flowers. He was shocked that on the day he will pick the hybrid flower the color becomes pink. What Non-Mendelian pattern of inheritance correctly describes the scenario?
Incomplete Dominance
Sex-linked Inheritance
Codominance
Multiple Alleles
At what percentage do a couple have a child boy and girl respectively?
25% and 75%
50% and 50%
70% and 30%
20% and 80%
Why females are less affected by sex-linked disorders?
Because females don’t have a Y chromosome
Because females have a strong immune system
Because genes are recessive and it must be present in both X chromosomes to be expressed
Because genes in the X chromosome are dominant and it overpowers the recessive traits
Refer to the given strands of DNA:
CTG TCG GCC ACC TAC (Old DNA)
GAC AGC CCC TGG ATG (New DNA)
Which of the following parts shows an error?
GAC
TGG
CCC
ATG
A woman is homozygous for A blood type. A man has AB blood type. What is the probability that the couple’s child will have type B blood?
0%
25%
50%
100%
Predict the phenotypic ratios of offspring when a homozygous white cow is crossed with a roan bull.
1 white cow and 1 roan bull
2 white cow and 2 roan bull
1. In birds, they have a Z-W system of sex determination. Male birds are ZZ while female birds are ZW. A rooster crosses with a hen. What is the probability of having a male and female chick?
0%
25%
50%
100%
Which of the following organisms is endangered?
Tilapia
Bangus
Kalabaw
Philippine Eagle
It refers to the variety of life in an area such as bacteria, plants, and animals.
Biodiversity
Population
Ecosystem
Communities
A 4 X 4-meter square area in a carrot has 300 carrot plants, all the same species. What is the index of diversity?
0.3
0.03
0.003
0.0003
Below is the population density of common trees in school:
Narra: 0.003
Acacia: 0.005
Molave: 0.006
Which species has the greatest density?
Narra
Acacia
Molave
Plants in general are considered to be producers in the ecosystem because of what life process they do?
Digestion
Transpiration
Photosynthesis
Respiration
Why do leaves appear green?
They reflect green light
They absorb green light
Which of the following will not affect photosynthesis?
Water
Chlorophyll content
Carbon dioxide
glucose
What plant organ is the site for photosynthesis?
stem
leaf
flower
root
Which structure are tiny pores on the bottom of a leaf where gases enter and exit the plant?
mesophyll
epidermis
vascular bundle
stomata
Where is the site of the light-independent reaction of photosynthesis?
grana
stroma
What are the raw materials needed for photosynthesis?
carbon dioxide and oxygen
oxygen and water
glucose and oxygen
carbon dioxide and water
What process in photosynthesis is where carbon dioxide is condensed to form glucose?
light reaction
dark reaction
