Question 1

Which of the following is an endocrine gland?

Accepted Answer

Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood rather than through a duct. The major glands of the endocrine system include: pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.

Question 2

What kingdom does Amoeba belong to

Accepted Answer

The Amoebas belong to a group called Protista. Amoebas are of the animal kingdom subdivision for microscopic organisms - protozoa.

Question 3

Cellular respiration is best associated with the

Accepted Answer

Cellular respiration is best associated with the organelle Mitochondrion.

Question 4

During the sensorimotor stage the main task is to

Accepted Answer

Jean Piaget was a cognitive psychologist who identified four stages of development: the sensorimotor stage from birth to 2 years, the preoperational stage from age 2 to age 7, the concrete operational stage from age 7 to 11, and the formal operational stage from age 11 to adult He identified milestones that occur at each stage According to Piaget, the main task of the sensorimotor stage is for the child to learn the concept of object permanence, use senses and motor skills to understand the world

Question 5

Where does translation occur?

Accepted Answer

Right after that, the mRNA enters the cytoplasm through nuclear pores. There, it could be translated into proteins by ribosomes. This process is called translation. Translation occurs in the cytoplasm whereas transcription occurs in the nucleus.

Question 6

Which occurs during transcription?

Accepted Answer

DNA information is copied to RNA

Question 7

Impulse conduction is fastest in neurons that are

Accepted Answer

A myelinated nerve can be found int the brain or spinal cord as well as the peripheral nervous system, it is white and is surrounded by schwann cells or oligodendrocytes.

Question 8

The gap between two communicating neurons is termed

Accepted Answer

A neuron or nerve cell is a cell that carries electrical impulses. Neurons are the basic units of the nervous system and its most important part is the brain. Every neuron is made of a cell body (also called a soma), dendrites and an axon. Dendrites and axons are nerve fibres. The gap between two communicating neurons is termed Synaptic cleft.

Question 9

What type of macromolecule is an enzyme?

Accepted Answer

Enzymes are protein macromolecules. Enzymes are almost always made of proteins only. Proteins are large biopolymer molecules that are made up of repeating monomer units called amino acids. There are 20 different common amino acids that make up proteins like enzymes. Of these, nine amino acids are essential, which means you must get them from your diet. Enzymes catalyze chemical reactions in biological systems. This means that they speed up the rate of the reaction.

Question 10

Autoimmune diseases associated with vitiligo

Accepted Answer

All of the above

Question 11

Which of the following would cause gene flow?

Accepted Answer

Gene flow means migration of genes from one to another. This gene flow is caused by individuals moving into population.

Question 12

Select the correct statement contrasting gametophytes and sporophytes.

Accepted Answer

Sexual reproduction results in gametes that combine two cells from different individuals. Meiosis also produces gametes. Haploids contain one set of chromosomes in each of their cells. Diploids cells contain two chromosome sets. For plants, haploid and diploid cells divide via mitosis. The plants’ haploid phase is called the gametophyte, and the diploid phase is called the sporophyte. Sporophytes are diploid plants that use meiosis to produce spores. These spores are haploid cells that grow into haploid gametophytes. Megaspores grow into female gametophytes, and microspores grow into male gametophytes. Gametophytes are haploid plants that use mitosis to make haploid gametes. These gametes are female in the form of an ovum (egg) or male in the form of sperm.

Question 13

Outward extension of the shoulder bone is the

Accepted Answer

acromion

Question 14

Where is excess glucose stored?

Accepted Answer

Glucose is essential for energy in all the living organisms. When we have more glucose than needs in our bloodstream, then the excess glucose is stored as large compounds as Glycogen. This glycogen fills the cells of the liver and available for any quick shots of energy. Hence, Liver is called as warehouse for the excess glucose.

Question 15

Factors that aid venous return include all except

Accepted Answer

urinary output

Question 16

Which of these is an example of a haploid cells?

Accepted Answer

In the above options, sperms are the haploid cells. In humans, haploid cells are those have only half the number of usual number of chromosomes. Sperm, gamates and egg cells are the haploid cells examples.

Question 17

The process of bones increasing in width is known as

Accepted Answer

appositional growth

Question 18

Which systems comprise the nervous system?

Accepted Answer

The nervous system of the human brain consists of the central nervous system which has brain and the spinal cord and the peripheral nervous system which has perpheral, cranary, spinal nerves.

Question 19

Which bacteria cause the greatest harm in the food industry?

Accepted Answer

Pathogenic bacteria cause the greatest harm in the food industry.

Question 20

Sponges are most accurately described as

Accepted Answer

filter feeders

Biology Questions