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WorksheetsSUMMATIVE TEST 4TH
Total questions: 20
Worksheet time: 18mins
Food enters the digestive tract through --------- where mechanical digestion mainly occurs, through mastication.
(a)
The food passes down the . ------- and into the cardiac end of the stomach. The stomach releases gastric juice which is composed of hydrochloric acid and pepsin.
(a)
Digested food is churned in the pyloric end of the stomach and then entered the .------------ where digestion and absorption mostly occurs.
(a)
Undigested food proceeds to the ------ where the dehydration of which occurs.Substances that cannot be absorbed exit the body through anus.
(a)
What do you call the branch of science that deals with the study of heredity and variation?
Genetics
Biology
Heredity
Variation
A pure round seeded plant (RR) is crossed to a wrinkled seeded plant (rr). Out of the four offspring, how many will be round seeded plant?
1
2
3
4
What will be the genotypes of the offsprings?
4RR
4rr
4Rr
2Rr
Which of the following Mendelian principle explains that the dominant trait dominates or prevents the expression of the recessive trait?
Law of dominance
law of Segregation
law of independent assortment
law of codominance
What do you call the movement of the substance in the colon?
Peristalsis
amoeboid movement
mass movement
sliding movement
Which of the following is the function of the gall bladder?
It produces insulin and glucagon
it produces bile
It stores bile
It stores pancreatic juice
Which of the following structures produce substances involved in the digestion of fats?
gall bladder
liver
stomach
colon
What do you call the different organisms living on earth?
ecosystem
biodiversity
foresty
habitat
Why do people sometimes drink while chewing food?
To help in mechanical digestion
To help in chemical digestion
To help in the absorption of nutrients
To speed up the digestive process
What is the advantage of high biodiversity?
It protects the soil
It produces more oxygen for others organisms
it controls the occurence of natural phenomenon
it can withstand in time of natural disasters
The plantation of coconut in Batangas is considered as --------
low biodiversity
high biodiversity
biodiversity
either A and B
The ocean is considered ------- because of the different kinds of organism in it.
low biodiversity
high biodiversity
biodiversity
either a or b
Which of the following events happen in interphase?
The DNA replicates
The cell grows initially
It is characterize by protein and RNA systhesis
All of these
The cell cycle is the ------------
Series of events that cells go through as they grow and divide
Period of time between the birth and the death of a cell
Time from the prophase until cytokinesis
Time it takes for one cell to undergo mitosis
How mitosis differs from meiosis?
Mitosis is a cell division produces two identical cells with the same number of chromosomes while meiosis produces 4 daughter cells that are haploid in the number of chromosomes.
Mitosis produces 2 daughter cells that are haploid ; meiosis produces 4 daughter cells that diploid.
Mitosis is a cell division with 4 stages while meiosis is a cell division that has 2 major phases.
Both mitosis and meiosis are cell division.
Where does cell division occur?
G1
S phase
G2
mitosis
