Tissues Test

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Tissues Test - 64

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Weekly Quiz Competition

Question 1
1 / -0

Bones belong to which of the following types of tissue?

A
Muscle tissue

B
Connective tissue

C
Meristematic tissue

D
All of the above

Solution

Connective tissues are fibrous tissues made up of cells separated by non-living material, which is called as an extracellular matrix. This matrix can be liquid or rigid. For example, blood has a plasma as its matrix and bone's matrix is rigid. Connective tissue gives shape to organs and holds them in place. Blood, bone, tendon, ligament, adipose and areolar tissues are examples of connective tissues.
Hence the correct option is B.
Question 2
1 / -0

Red color of blood is due to the presence of __________.

A
Lymphocytes

B
Thrombocytes

C
Erythrocytes

D
Leucocytes

Solution

Blood contains three different types of cells: White blood cells (WBCs), Red blood cells (RBCs), and platelets. RBCs have red color due to a pigment called haemoglobin present in them. It carries oxygen.
Hence, RBCs impart a red colour to the blood.
Thus, C is the correct option.
Question 3
1 / -0

The immune system helps to protect you against viruses and bacteria that can cause sickness. Which cells are part of the immune system?

A
White blood cells

B
Red blood cells

C
Nerve cells

D
None of the above
Solution
White blood cells (WBCs), also called leukocytes, are an important part of the immune system. These cells help fight infections by attacking bacteria, viruses, and germs that invade the body. White blood cells originate in the bone marrow but circulate throughout the bloodstream. There are five major types of white blood cells:
- Neutrophils
- Lymphocytes
- Eosinophils
- Monocytes
- Basophils
Hence the correct option is A.
Question 4
1 / -0

The cellular organization between a single cell and an entire organism is controlled by:

A
Hormones

B
Tissues

C
Enzymes

D
Proteins

Solution

A cellular organization between a single cell and a complete organism is controlled by the tissue. They are the collection of similar cells, with specific function. A collection of tissue gives rise to an organ. Proteins, enzymes and hormones do not take part in cellular organization.
Hence, the correct option is 'B'.
Question 5
1 / -0

In rabbit, end of a long bone is connected to another by:

A
Tendons

B
Ligaments

C
Muscles

D
Cartilages
Solution
- Tendons are the tissues which connect muscles to bones.
- Ligaments connect one bone to other at joints and consist of dense regular connective tissues.
- Muscles are the organs that consists different types of tissues and are responsible for bodily movements by their attachment to bones through tendons.
- Cartilage is a flexible skeletal tissue that forms skeleton of embryo and serves to connect short bones together.
So, the correct answer is option B.
Question 6
1 / -0

Where are relay neurons situated?

A
Effector

B
Spinal cord

C
Spinal nerve

D
Receptor

Solution

Relay neurons are found between sensory input and motor output/response. Relay neurons are found in the brain and spinal cord and allow sensory and motor neurons to communicate. Motor neurons are found in the central nervous system (CNS) and control muscle movements.
Hence the correct option is B.
Question 7
1 / -0

Read the passage and answer the following question.
Students carry out an experiment to explore the effect of different environments on blood flow using small, freshwater fish. Each fish is placed into a petri dish. A wet cotton ball is placed over its gills to allow for the diffusion of oxygen, which will keep the fish alive. The students then place the petri dish onto the stage of a light microscope so that the thinnest part of the tail is directly under the objective lens and blood can be seen flowing in blood vessels. While focusing on a capillary, students count the number of red blood cells flowing through the vessel at 5-second intervals. After monitoring the normal flow of blood for 30 seconds, the environment in the petri dish is altered in one of five different ways. Students observe and record the change in blood flow if any. After the experiment, each fish is returned to the fish tank.

Experiment 1 - Nothing is added to this petri dish.
Experiment 2 - Water at a temperature of $$\displaystyle { 5 }^{ \circ }C$$ is added.
Experiment 3 - Water at a temperature of $$\displaystyle { 30 }^{ \circ }C$$ is added.
Experiment 4 - Ethyl alcohol is added.
Experiment 5 - Nicotine extracted from cigarette tobacco is added.

Experiment Initial average rate of blood flow Final average rate of blood flow
1 9 9
2 8 4
3 9 13
4 8 5
5 9 12

Condition in experiment 4 is described by

A

B

C

D

E
Question 8
1 / -0

Which of the following describes homeostasis?

A
An animal maintaining a home range.

B
A population maintaining a constant population size.

C
Females remaining in their parents territory.

D
Plants ceasing to grow at a maximum height.

E
Maintaining internal environment in a steady state

Solution

The definition of homeostasis is the ability or tendency to maintain internal stability in an organism to compensate for environmental changes. An example of homeostasis is the human body keeping an average temperature of 98.6 degrees Fahrenheit.
So, the correct option is E.
Question 9
1 / -0

Which of the following conditions will occur if the RBCs are placed in a hypotonic solution?

A
Shrink due to osmotic water loss

B
Rupture due to the influx of water

C
Maintain their shape due to the cell wall

D
Swell but avoid rupturing due to the cell wall

E
Pump out excess water with the contractile vacuole

Solution

Hypotonic solution is any solution which has low solute molecules and more water molecules. If RBCs are placed in a hypotonic solution, water moves into the cell from the high concentration of solvent to less concentration. Due to the influx of water cell swells and finally burst.
So, the correct answer is option B.
Question 10
1 / -0

Which of the following germ layers form smooth muscle?

A
Endoderm

B
Mesoderm

C
Epiderm

D
Ectoderm

E
None of the above

Solution

Three germ layers namely, ectoderm, endoderm and mesoderm, develop during gastrulation and gives rise to different parts of the organism. The mesoderm gives rise to connective tissue (cartilage and bone), striated and smooth muscles, the heart walls, blood, lymph vessels, kidneys, gonads, spleen and notochord.
Thus, the correct answer is option 'Mesoderm'.