Inner layers of the sponges are made up of__________?
Correct answer: C. Choanoytes
- A. Pinacocytes
- B. Choanoderm
- C. Choanoytes
- D. Pinacoderm
Explanation
The inner lining of a sponge is the choanoderm, and it is made of flagellated collar cells called choanocytes that create water currents and trap food. Students may choose b because choanoderm is the name of the layer, but the question asks for the cells forming it.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Animal and Plant Cell
Animal and plant cells share a plasma membrane, cytoplasm, nucleus, ribosomes, mitochondria and endoplasmic reticulum, but plant cells also have a cellulose cell wall, chloroplasts and a large permanent vacuole. Questions cover organelle structure and function, differences between the two cell types, and how membranes control movement of substances.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Animal and Plant Cell questions
Of the following which one is not included in Proterostomes?
Coelom that develops from the archenteron as outpouching is__________?
Of the following which one is not found in series proterostomia?
Sperms are _________ in origin.
Gut in pseudocoelomates is made from___________?
The skeleton of the sponges is in the form of variously shaped needle like structures called___________?