In what way does biology benefit technology?

Providing material that is used to adapt and develop modern technologies

The correct sequence of cell stages in spermatogenesis is:

Spermatogonia → Spermatocytes → Spermatids → Sperms.

In incomplete dominance:

Both alleles are expressed equally.

Which one of the following bone cells CORRECTLY match with function?

Osteoblasts - new bone formation.

Which one of the following is CORRECT regarding the above observation?

High amount of reducing sugar in sample 2

What role do receptors play in the homeostasis process?

They monitor environmental changes.

Which of the following statements best states the cell theory?

Cells are the basic unit of life

Why do people with HIV/AIDS get so many other infections?

More and more T-cells are invaded by the virus

Why are insects considered essential for pest regulation?

Consumes pests and limits potential pest population.

Which one of the following is true about enzymes?

Enzymes are highly specific for their substrates.

Which one of the following is not instinctive behavior?

Blinking when something gets too close to your eye

What is the quaternary structure of protein?

The interaction between subunits.

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Biology G12 - Oromia Regional Mock Exam

26 termsStudBud Administration92 plays

Test your knowledge on various topics in biology, from cell theory to enzyme structure and function. Challenge yourself with questions on adaptations, classifications, and more!

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Questions 26

Answers

1
Which of the following factors can lead to increased catalytic efficiency of an enzyme?
Increase in temperature beyond optimal range
Presence of inhibitory compounds
Presence of cofactors
Increase in substrate concentration beyond saturation point
2
In what way does biology benefit technology?
Providing detailed information on chemical components of medicinal plants
Help to investigate information on biomolecules
Providing material that is used to adapt and develop modern technologies
giving physical devices to gather biological information at all scales
3
The correct sequence of cell stages in spermatogenesis is:
Spermatogonia → Spermatids → Spermatocytes → Sperms.
Spermatogonia → Spermatocytes → Spermatids → Sperms.
Spermatocytes → Spermatogonia → Spermatids → Sperms.
Spermatocytes → Spermatids → Spermatogonia → Sperms.
4
In incomplete dominance:
One allele is completely dominant over the other.
Both alleles are expressed equally.
Neither allele is completely dominant over the other.
There are more than two alleles for a particular gene.
5
What is the role of ligaments in the musculoskeletal system?
Prevent bone from rubbing against each other
Attach bone to bone
Position and movement
Muscle to bone
6
Which one of the following bone cells CORRECTLY match with function?
Osteoclasts - repair of fracture
Osteocytes - form bone into correct shapes.
Osteoblasts - new bone formation.
Osteoprogenitor - mature bones of newborns.
7
Which one of the following is CORRECT regarding the above observation?
High amount of reducing sugar in sample 2
There is high amount of protein in sample 1
Sample 2 contains starch
There is high amount of reducing sugar in sample 1
8
What role do receptors play in the homeostasis process?
They adjust body conditions back towards the set point.
They detect stimuli and send information to the brain.
They regulate the body’s response to stimuli.
They monitor environmental changes.
9
What structural feature distinguishes veins from arteries?
Narrower lumen
Thicker muscular walls
Walls a single cell thick
Presence of valves
10
Which of the following statements best states the cell theory?
Cells are the basic unit of life
Cells can arise spontaneously from non-living matter
Only plant cells can perform photosynthesis
Cells are only found in multicellular organisms
11
Which one of the following characteristics feature is not characteristic of animals?
Heterotrophs
Excrete
Eukaryotes
Unicellular
12
Which one of the following is not a practice that affects reproductive health?
Spacing and timing of births
Early marriage
Kidnapping or abduction
Gender-based violence
13
Why do people with HIV/AIDS get so many other infections?
More and more T-cells are invaded by the virus
HIV/AIDS is a source of other pathogens that cause infection
People with HIV/AIDS are immune to defend infection
More and more T-cells are reproduced as a result of infection
14
Why are insects considered essential for pest regulation?
Transfer male gametes to the stigma of a flower.
Decomposes organic matter, enriching the soil.
Consumes pests and limits potential pest population.
Consumed by humans in many countries.
15
What type of muscle is involuntary and found in the walls of internal organs?
Cardiac muscle
Smooth muscle
Striated muscle
Skeletal muscle
16
What do we call organisms that feed on both plants and animals?
Herbivores
Carnivores
Omnivores
Detritivores
17
Which one of the following is true about enzymes?
Enzymes can function in a wide range of temperature and pH.
Enzymes are highly specific for their substrates.
Enzymes increase the rate by increasing activation energy.
Enzymes are consumed in the reaction they catalyze.
18
Which one of the following is an adaptation mechanism of animals in cold climate?
Active in the early morning
Blubber
More sweat
Large, thin ears
19
In scientific name Canis simensis, what does simensis refer to?
Order
Genus
Species
Family
20
Which one of the following is not instinctive behavior?
Opening mouth in chicks when their mother returns to the nest.
Blinking when something gets too close to your eye
Honeybees dance when they return to the hive after finding a source of food
Swimming with dolphins and aquatic animals
21
Which of the following statements is CORRECT regarding Tape worms?
Have complete lifecycle, which involves at least two hosts
They have complete digestive system
Live in mutualistic association with host
They feed off their host
22
What is the process of converting mRNA into a protein called?
Mutation
Replication
Translation
Transcription
23
Which of the following statements about class monocotyledon plant is true?
Leaves with parallel veins
The embryo has two seed leaves
In general, monocots reach great sizes
They are often animal pollinated
24
If a cell is placed in hypertonic solution, what will most likely happen to the cell?
It will swell
It will shrink
It will burst
It will remain the same size
25
In the process of oogenesis, at which stage does the secondary oocyte arrest?
Metaphase I
Prophase II
Prophase I
Metaphase II
26
What is the quaternary structure of protein?
The three-dimensional shape.
The folding pattern of the polypeptide chain.
The interaction between subunits.
The sequence of amino acids.

Biology G12 - Oromia Regional Mock Exam Flashcards | StudBud